Many owners of the Ambulance Peugeot, Citroen and Renault equipped automatic transmission, As well as those who are going to purchase a French car with automatic transmission, are asked about the reliability of Al4. Relying on the many years of experience in the maintenance and repair of cars Peugeot, Citroen and Renault, we will try to answer the answer to the excuses of all the question, as well as several advice on Al4 operational specials.
A little story.
Automatic hydromechanical four-stage gearbox with electronically control Al4 was originally designed for RENAULT cars and is denoted by DP0. Installed for many models Renault (Clio, Symbol, Megan, Laguna). The designation Al4, as well as the BVA or 4HP-16 box received after joining the PEUGEOT and CITROEN conveyor. Starts on the following models Concern: Peugeot 206, 207, 307, 308, 406, 407, Citroen C2, C3, C4, C5, XSARA. Read more about the principle of Al4 operation, you can learn on psa-club.ru/transmissiya/akpp-al4.html.
Exploitation.
1. Despite the presence of a warm program in the Al4 computer, after a long parking, always warm up the automatic transmission before the trip, regardless of the air temperature, at least 5 minutes. At the same time, there is no need to translate the selector from the position "P". After starting the movement, avoid sharp accelerations with the transition of the gear down.
2. It is recommended to change the oil in the automatic transmission every 30,000 - 40,000 km. The assurance of the plant that oil in Al4 is flooded for the entire service life, not applicable to the Russian operating conditions. At the same time, do not forget that for RENAULT cars recommended ELF RENAULTMATIC D3., and for Peugeot and Citroen ESSO. or Mobil LT71141. Unfortunately, the entire volume of oil (7 liters) cannot be replaced, when changing the oil is used about 3.5 - 4 liters of fresh. Oil shift is better to entrust professional service.
3. When errors occur in the automatic transmission, switching it to emergency mode, contact your professional service, and the faster, the better. Repair automatic pleasure is not cheap, and the faster the malfunction will be determined, the less you have to pay for possible consequences Operating a car with a faulty unit. Al4 Alarm Mode is usually accompanied by the outbreak of indicators * and S, the output of the PRND and Gearbox fault. The automatic transaction forcibly includes 3 transmission.
Typical Al4 faults and ways to eliminate them.
Symptoms: It occurs after the start of the movement, as a rule "on the cold". Accompanied by a shock in automatic transmission and transition to emergency mode with the output of the message "Gearbox faulty". After turning off and on, the ignition disappears to the next "cold" start.
The reasons: Scattering the inspection oil pressure between a given computer and measured (from 0.5 to 1.5 bar), caused by a malfunction of a pressure control unit in the hydraulic block, low level oils in automatic transmission, weakening tightening bolts of the hydroblock mounting bolts.
Treatment:mandatory inspection of automatic transmission for leaks, with a large range checking the state of the heat exchanger, dismantling the hydroblock with replacement electromagnetic valves, broaching the hydraulic block, replacing the oil in the automatic transmission. With a large mileage and a large scattering of pressure, a complete disassembly of the hydroblock is possible, its washing, assembly and adjustment. After mechanical work Be sure to: Download the new version of the computer, clean the memory from errors, the computer initialization and reset the oil aging counter, check the oil pressure in the selector position "D" and "R". For cars, issued until 2004 compulsory compatibility checks with a new type of electromagnetic valves. If the oil in Al4 was strongly contaminated with wear products, we recommend visiting the service after 1000 km of the mileage to replace the oil and test pressure in the hydraulicone.
Al4 hydraulic contact in the process of disassembling and washing (Peugeot 406 car, mileage 214000 km). In the background electromagnetic valve.
Magnetic ring hydroblock filter.
Р0405 Brake system communication line defect. Communication.
Symptoms: Delays When switching transmissions, automatic transmission "Tupit", it is possible to "dump" boxes in Avary mode with the output of the message "Gearbox faulty". In some cases, it is impossible to remove the ACP selector from the position "P" or the selector is translated without clicking on the brake pedal. Perhaps manifestation along with the error P1167, we treat first of all the error brake system. By the way, the brake system error can register in the injection or ABS / ESP computer, it will be absent in the automatic transmission.
The reasons: Fault terminal switch Brake pedals, brake pedal switch wiring.
Treatment:replacing the end switch of the brake pedal, repair or replacing the wiring harness of the trace switch brake pedal.
P0730 Clutch / brake bucking. Not typical. Almost always arises with the error P1167 "Pressure control error (specified / measured) is not typical.
Symptoms: It may occur both to "cold" and on a heated automatic transmission. Accompanied by a shock in the automatic transmission and the transition to emergency mode with the output of the message "Gearbox faulty" during movement. There may also be a sudden increase in revolutions without switching gear (the effect of the bouquet clutch).
The reasons: The failure of the electromagnetic valve of controlling the torque of the torque converter, in combination with the error P1167, the failure of the electromagnetic pressure control valve in the hydraulic block, a malfunction of the hydroblock. The operation of the car is prohibited due to the possibility of a cliff of the ribbon brake of the hydrotransformer.
Treatment: Mandatory inspection of automatic transmission for leaks, with a large range of testing the state of the heat exchanger, dismantling the hydroblock with the replacement of electromagnetic valves, broaching the hydroblock, replacing the oil in the automatic transmission. With a large mileage and large scattering of pressure, a hydraulic block is possible to a new one. After mechanical work, it is necessary: \u200b\u200bdownloading a new version of a computer, cleaning memory from errors, computer initialization and reset the oil aging counter, check the oil pressure in the position of the automatic transmission "D" and "R". For cars, issued until 2004 compulsory compatibility checks with a new type of electromagnetic valves. If the oil in Al4 was strongly contaminated with wear products, we recommend visiting the service after 1000 km of the mileage to replace the oil and test pressure in the hydraulicone.
Hydroblock scheme.
P1799 Multifunional Switch Signal Error (CMF). Contact Parkova / Neutral. Not typical.
Symptoms: When switching the automatic transmission selector, the position indicator is not displayed on the display, followed by the incorporation of the alarm and output to the message "Gearbox faulty". Characteristic when translating a selector from the position "P" in "R" or from "D" in "N".
The reasons: Fault Multifunction switch automatic switch, incorrect switching of a switch or gear sector sector due to the unqualified Al4 repair, popping the cable of the automatic transmission from the mounting bracket. The causes of the failure of the switch itself are a bit: 1) a malfunction as a result of the natural wear of the switch contact plate; 2) After the engine is too diligent washing (the switch contacts are simply burned due to entering the water) 3) the switch defect due to the factory marriage.
Position 7: Multifunctional automatic switch Al4 (in the figure is highlighted in red).
Treatment:adjustment of the multifunction switch, adjusting the gear sector gear (for this it is necessary to remove the hydroblock casing with a partial oil drainage from automatic transmission), setting the gear selection cable, replacing the multifunction switch automatic transmission.
All faults described may occur as in warranty period The maintenance of the car and after the end of the warranty. To the run of about 150000 - 200,000 km, the probability of breakdown Al4 increases significantly, but the cost of repair does not exceed 10,000 rubles, which for an aggregate is at the cost of 12,000,000 rubles, in our opinion, is not considered something exemplary. Moreover, mechanical part The AL4 automatic transmission is reliable, all the repair of the box is reduced to the replacement of electronic components.
Since French cars came to our market, the popularity of technology is constantly growing. PSA Group's car giants and Renault Group supply products in 200 countries, including our region.
This establishes the trend of buying cars with front-wheel drive, equipped with power plants with a volume of up to two liters, and. French producers needed such. The desired characteristics of the designed gearbox, small dimensions and weight, but not to the detriment of reliability and compatibility with sought-after power plants.
After the work performed, the joint efforts of the PSA and RENAULT designers are released automatic, equipped with electronically controlled, with Al4 marking. Today, the number of released gearboxes of the model exceeds in terms of the indicators of similar products for vehicles with front-wheel drive and the engine range within 1.4 - 2.0 liters.
ACP AL4:
Al4 box description
The AL4 automatic transmission is represented in the automotive market in 1999. Initially, the unit was intended for installation on renault cars, according to the classification of the company, the transmission was labeled as. The gearbox was installed on popular models Renault. And soon began to be used on the PSA Group conveyor, the transmission began to be marked as Al4 (HP16), there is a rare designation BVA.
Al4 automatic transmission (DP0) was installed on cars:
| Mark. | Model | Year of issue | Type of automatic | Power point |
| Renault. | CLIO. | 2000-2011 | 4 Sp FWD. | L4 1.4L, 1.6L, 2.0L |
| Renault. | Espace. | 2000-2002 | 4 Sp FWD. | L4 2.0L. |
| Renault. | Fluence | 2009-2011 | 4 Sp FWD. | L4 1.6L, 2.0L |
| Renault. | Kangoo. | 2000-2011 | 4 Sp FWD. | L4 1.4L, 1.5L, 1.6L |
| Renault. | Laguna. | 2000-2007 | 4 Sp FWD. | L4 1.8L, 1.9L, 2.0L |
| Renault. | Logan. | 2007-2010 | 4 Sp FWD. | L4 1.6L |
| Renault. | Megane | 2000-2011 | 4 Sp FWD. | L4 1.4L, 1.5L, 1.6L, 1.9L, 2.0L |
| Renault. | Modus. | 2004-2011 | 4 Sp FWD. | L4 1.6L |
| Renault. | Safrane. | 2000 | 4 Sp FWD. | L4 2.0L, 2.2L |
| Renault. | Sandero. | 2011 | 4 Sp FWD. | L4 1.6L |
| Renault. | Scenic | 2000-2011 | 4 Sp FWD. | L4 1.5L, 1.6L, 1.9L 2.0L |
| Renault. | Symbol. | 2000-2011 | 4 Sp FWD. | L4 1.4L, 1.6L |
| Peugeot. | 206-206SD. | 2000-2011 | 4 Sp FWD. | L4 1.4L, 1.6L, 2.0L |
| Peugeot. | 207-207 Passion. | 2006-2011 | 4 Sp FWD. | L4 1.6L |
| Peugeot. | 306 | 2000-2002 | 4 Sp FWD. | L4 1.8L, 2.0L |
| Peugeot. | 307 | 2001-2011 | 4 Sp FWD. | L4 1.6L, 2.0L |
| Peugeot. | 308 | 2007-2011 | 4 Sp FWD. | L4 1.6L, 2.0L |
| Peugeot. | 406-406 Coupe. | 2000-2005 | 4 Sp FWD. | L4 1.7L, 1.8L, 2.0L |
| Peugeot. | 407 | 2003-2011 | 4 Sp FWD. | L4 2.0L. |
| Peugeot. | 408 | 2011 | 4 Sp FWD. | L4 2.0L. |
| Peugeot. | 807 | 2002-2010 | 4 Sp FWD. | L4 2.0L. |
| Citroen | Berlingo. | 2000-2002 | 4 Sp Fed. | L4 1.6L, 1.8L |
| Citroen | C2. | 2006-2010 | 4 Sp Fed. | L4 1.6L |
| Citroen | C3-C3 Picasso | 2008-2011 | 4 Sp Fed. | L4 1.6L, 2.0L |
| Citroen | C3. | 2001-2011 | 4 Sp Fed. | L4 1.4L, 1.6L |
| Citroen | C3. | 2011 | 4 Sp Fed. | L4 1.6L |
| Citroen | C4-C4 Picasso | 2004-2011 | 4 Sp Fed. | L4 1.6L, 2.0L |
| Citroen | C5. | 2000-2011 | 4 Sp Fed. | L4 2.0L, 2.2L, V6 2.9L |
| Citroen | C8. | 2002-2011 | 4 Sp Fed. | L4 2.0L. |
| Citroen | C-triomphe | 2006-2011 | 4 Sp Fed. | L4 2.0L. |
The transmission was calculated for applying for vehicles with front-wheel drive, a pair with aggregates of 1.4 to 2.0 liters. Some automatic transmission modifications differ in the case, drive gears and settings. The automatic transmission is simple and reliable, the design does not provide for unnecessary parts and mechanisms. The safety margin embedded in the calculations is able to give a mechanism to withstand the pulse by force to 210 nm, however, to increase the resource, these indicators are limited to the settings.
Brief specifications The AL4 automatic transmission (DP0) is presented in Table:
| Box of variables, brand | Al4 or DP0. |
| Box of variable gear, type | Automatic |
| Transmission | Hydromechanical, adaptive |
| Number of gears | 4 forward, 1 back |
| Maximum | 210 Nm |
| Approximate mass of boxes | 75 kg |
| Transmission number of boxes: | |
| 1 Transfer boxes | 0,367 |
| 2 Transfer boxes | 0,667 |
| 3 Transfer boxes | 1 |
| 4 Transfer boxes | 1,407 |
| Reverse boxes | -0,407 |
| Main Transmission, Type | |
| Front transfer | Conical |
| Reverse gear | Hypoid |
The main advantage, transmission, an acceptable cost, this allowed the machine to become popular among cars with a small engine volume. The gearbox received positive reviews and popularity, this allowed to take the automatic transmission as a basis for an improved modification. Together with Siemens, an improved Al4 model was released, which was equipped with the Tiptronic System Porsche device, while the mechanic did not change
Switching modes, Al4 scenes
Kulis gearbox is located in the central part of the cabin. Purpose, selection of the desired mode, by exposure to a special contactor and spool device, switching hydraulics modes. The scenes are equipped with six positions, switching passes by moving along the slot of the selector panel stream.
Transfer selection lever positions:
- P - Parking mode, transmission blocked, launch power plant available;
- R - mode rear stroke, when the reverse lights are simultaneously lighting;
- N is a neutral mode, the launch of the power plant is possible;
- D - automatic adaptation mode "Drive", switching forward transmissions from the first to fourth and back;
- 3 - automatic mode, limited three transmissions (1-2-3 and back);
- 2 - automatic mode, limited to two transmissions (1-2 and back);
Modes "2" and "3" are automatically limited because computer is managed.
Important! To unlock the gear lever from the position "P" you need to turn on the ignition and click on the brake pedal, the "SHIFT-LOCK" function.
The gearbox is equipped with a special mechanical protection mechanism that prevents breakdown of transmission parts with an incorrect transition from one position of the scenes to another. The transition from the following positions is mandatory through the provisions:
- From "P" in "R";
- From "R" in "P";
- From "n" in "R";
- From "D" in "n";
- From "3" in "2".
In order to meet the driver's needs in driving with additional high-speed modes, Constructively provides a software selector. The mechanism is equipped with three keys and is located on the side of the scenes.
Switching the gear shift paired with the program selector:
Selector Programs:
- Standard program (none of the keys are pressed, the scenes in the "D" position):
The program is considered the primary, when using it, the computer analyzes the driving style and adapts it to road conditions and the load of the car. The main goal is to achieve a smaller fuel consumption and optimally distribute the effort;
- Sport program (pressed the "S" key, the scene in the "D" position):
Using the program suggests automatic switching gears, but the computer prefers to the sports style and does not draw the amount of fuel consumed;
- The "Snow" program (pressed the "*" key, the scenes in the "D" position):
Using the program, the computer adapts to the conditions of the slippery surface of the road. The movement begins using the second or third transmission with an infrequent transition to reduced transmission. Such a mode reduces the wear of the mechanisms of the box and increase its life;
- The mode of the forced limit of the first transmission (key "1", the scenes in the "2" position):
The gearbox will only work on the first gear.
Features of the program "SHIFT LOCK":
When moving the scenes to the "P" position without pressing the brake pedal, the ABAP selector will be blocked. When motor vehicle motionless, and rotational speed crankshaft The power plant exceeds 2000 revolutions per minute, when the lever is moved to the "D" position, the transmission does not occur.
Important! When the ignition is turned off and its inclusion is automatically transition to the computer to the standard program.
Indication on the information board:
When operating the box, the illumination software panel informs the driver:
- Information about the position of the Kulisi lever;
- Information about the program used;
- Information about the transition to the backup mode.
Indication on the instrument panel:
Al4 Box faults
Despite the positive feedback and popularity of transmission, Al4 automatic transmission is inherent vulnerable places. The problem observed in the mechanism, as a rule, occurs from most boxes of this type.
- Deaf knock and push when starting. They occur in the event of the start of the movement without prior warming the box. The reason for this manifestation lies in the difference in oil pressure indicators. The data used by the computer to calculate the desired modes does not coincide with real characteristics. Cause, fault of the pressure regulator in the valve plate. Moreover, possible reasonDisadvantaged level transmission fluid, and violation of the moments of the tightening of the bolts, which are attached by the hydraulicock.
To eliminate the defect, check whether the oil does not flow into the AL4 automatic transmission, analyze the state of the heat exchanger, replace the lubricant, remove the hydraulic unit and change the valve. If the box mileage is over 100,000 km, you will need full maintenance, including disassembly, disassembly, flushing, valve plate. In the future, the slab will need to be configured and adjusted. After completing the work, reconfigure and clean on-board computer car.
Pressure regulator №144431:
- Transfer switches with a delay. The pericker is accompanied by the junction of the rush lever in the position "P". Sometimes on the contrary, the scenes switches from the position without pressure on the brake pedal. As a rule, the culprit of non-standard behavior, a brake sensor fault.
To eliminate the problem, change the end switch, check and change the damaged electrical harness of the switch.
Tray brake pedal switch:
- A knock and shock when moving a car, flashing an error message. The study manifests itself on moving transport, will feature both a warm and cold gearbox. It is often observed an increase in the number of revolutions, although the transmission switching does not occur, the car's coupling as it were.
The reason lies in the damage to the valve controlling the blocking of the hydraulic transformer, as well as in the hydrolapan, which is responsible for proper pressure in the hydraulic block.
Important! With such symptoms stop using the car. Further ride on the faulty transport is fraught with a breakdown of the hydraulic transformer brakes.
To eliminate the problem, the automatic transmission is checked on the transmission fluid leakage, check the heat exchanger, dismantle the hydraulic unit with the valve replacement. In addition, it is necessary to fully replace in the transmission. The strong wear and mileage of the box over 100,000 km, indicates the feasibility of replacing the hydraulic unit new. Conducting works accompany the subsequent download of the new program into the on-board computer of the car.
- Switching the scenes is accompanied by the lack of an indicator of the selected mode on the car information scoreboard. They are observed mainly when translating the scenes from the parking mode to the mode of movement by reversing, as well as when switching the scenes from the standard mode to the neutral mode.
The cause of Al4 malfunction automatics lies in the transmission box breakdown. In addition, this behavior is characteristic of failure of the device or the sector failure, which is responsible for choosing the Al4 gearbox. As a possible reason, the cable of the selector, which is weakly fixed in the bracket and constantly jumps out of it.
The failure of the switch is possible due to moisture, factory marriage, strong wear. The elimination is reduced to replace or set up the above parts.
The described problems are often found when operating the AL4 / DP0 gearbox. Problems are characterized by an implicit character of manifestation, can be observed in any period of use of the box, regardless of the run.
Transmission switch:
Replacing the transmission fluid in AL4 automatic transmission
Al4 variable transmission box Reliable and trouble-free unit, provided that the mechanism maintenance passes in a timely manner. The transmission is demanding that the quality of the fluid and its level is demanding, so the oil change in the AL4 automatic transmission should be carried out regularly with all the necessary norms and rules.
Every 30000 km need to check the level of transmission fluid in the box. If there are small heights in the form of spots on the product, the check is carried out daily, in order not to miss the moment of large loss of oil. Al4 automatic transmission oil is controlled using a metal cork, which is provided constructively. The cork feature is that it is composite and simultaneously serves both to control the level of fluid and for draining the oil from the box.
Level control is carried out as follows:
- Install the car on the lift, pre-warmed the transmission fluid in the box to the operating temperature;
- Do not join the motor, until the fan of the forced cooling turns on;
- Transfer the gear selector alternately into all modes with the subsequent transfer to Parking mode "P";
- Turn off the engine;
- Unscrew the control plug before setting the capacity for draining testing;
- Control, the appearance of small fluthers of transmission fluid;
Important! Oil flows stream - excess of the fluid norm; Little drops - the norm of fluid is underestimated, but oil is not - noting working fluid. All these indicators have a negative impact on the transmission and require immediate replacement of lubrication and bringing it to the norm.
- Split control plug.
In any case, the AL4 automatic transmission can be replaced at a periodicity once, every 40000-60000 km of run, depending on the operating conditions and the load on the box. The oil used for the bay in transmission must comply with the level of dexron-III, as a rule, is ATF LT 71141 ESSO or Mobil. For full replacement It will take about seven liquid liters, partial replacement requires four liters.
Ata lt 71141:
It is better to carry out a complete replacement on special stands that pump out all lubricant from the system.
For self-substitution It will take:
Set KFS 959 Filter, Gasket
Al4 transmission fluid replacement stages:
We merge the waste fluid:
- Warming up to operating temperature;
- Unscrew the control tube of the gearbox, pre-substituting the prepared container;
- After draining the part of the fluid from the gearbox, unscrew the main plug and drain the whole liquid;
- We dismantle the gearbox pallet, rinse from impurities using washing liquid;
- We change the filter element, put the pallet with a new gasket into place;
- We change the sealing ring of the plug, tighten the plug with a force of 2.5 nm.
Refueling new transmission fluid:
- Unscrew the transmission cork for the bay of the liquid;
- Using the bay funnel, refuel the required amount of oil;
- Install the plug in place, the force is 3.2 nm.
Control of the bay of liquid, pumping:
- We bring the power plant;
- Heating to a temperature of 60 ° C;
- We translate the gear shift to possible modes, return to Parking mode "P";
- Control the level of the flooded fluid, if necessary, felt or drain the excess.
- We close the transmission control cork, the force is 2.5 nm.
After replacing the transmission fluid, it is necessary to periodically monitor the level and possible leakage of the fluid from the gearbox. When detecting, it is necessary to urgently eliminate the problem, otherwise you cannot avoid serious breakdown.
Careful care for its gearbox, calm and even ride, gentle handling of transmissary, replacing the oil and filtering elements on time will fully enjoy the advantages of AL4 automatic transactions.
ACP AL4 is one of the most famous automatic transmissions that are used on the front-wheel drive vehicles. It was developed in 1999 by the French Peugeot Citroen Association. According to Renault classification, this box is called DP0 and in Russia the most famous is under this naming. Initially, it was put on the following Renault models: Clio, Symbol, Laguna (front-wheel drive cars with an engine volume no more than two liters). Subsequently, Al4 got acquainted models Peugeot. (207, 208, 308, 407 and others), and Citroen (C2-C5, XSARA).
The gearbox has 4 main modes of operation, as well as neutral and warm-up mode.
1. Normal mode of operation
- The position of the gearbox selector D includes autoadaptive switching mode. In this mode, the on-board computer independently selects the modes in which the transmissions are switched: from the most environmentally friendly to the most dynamic. The choice of a specific program depends on the load on the motor, driving style and road conditions. Select mode, as a rule, occurs in about 10-15 seconds.
- The position of the gearbox selector 2 is similar to D, only without using III and IV gears. Also in this position of the selector it is possible to use the button 1, which is used for emergencies and complex road conditions: when you press this button, the gearbox selects only the first gear.
- The position of the gearbox selector 3 is similar to D, but without IV transmission.
2. Sports mode (S)
- The position of the box of the box D includes the most dynamic of 6 modes of operation of the automatic transmission.
3. Winter mode of operation (button *)
- The position of the selector D includes the most eco-friendly mode of operation and does not allow the use of i gear, the machine is touched from the second. It is implemented in order to prevent slipping on a slippery road.
Modes of operation automatic transmission AL4
4. Sequential mode of operation (Pressed M button)
- In this case, the driver switches the transmission itself. However, when reached the minimum threshold value of revolutions for each transmission, AL4 will independently turn on the reduced transmission, when maximally revolts are reached - increased.
The design of Al4 is quite simple, no additional "frills" in it is not that somewhat enhances operational requirements. It should be treated carefully, otherwise the box declared in a technical transportation will not pass - the problems will begin with 50-60 thousand (Russian conditions of operation are affected).
- Despite the fact that the box has warm-up mode, which turns on automatically after the start of the engine, the box should be warmed every time after a long parking lot. Hall the brake, move the gearbox from the parking mode (P) to the reverse mode (R), wait a couple of minutes, move the box to movement mode (D) and wait another two minutes. After that, you can start moving.
- In order to extend the service life of DP0, immediately after the start of the movement, do not allow harsh accelerations using reduced transmissions for fast acceleration.
- Do not slip slip. In the cold season, use the Winter Mode of the box. If it did not help and you are stuck in the snow, do not overload the box, ask someone to push the car. Even if these are random passersby and they have to pay, remember - the repair is much more
Al4 design
- If the box independently includes alarm mode (turns on III TransferPRND appears on the panel), this suggests that the working pressure is exceeded. It threatens overheating box, faster wear and out of the ranks of frictional, so contact the car service.
- Support the optimal temperature mode of the vehicle and make sure that the coolant radiators are clean.
- Keep track of the oil level in the CP - for this regularly visit the car service (the fact is that there is no probe to check the oil level in the automatic transmission, so the oil level control is possible only in a hundred). However, the exceedable oil level is easy to notice on oil subkam.
- Every 20,000 kilometers produced oil change in the box and its computer diagnostics - Do not lend to the assurances of manufacturers that the box is maintenance free (important! In the early 2000s, manufacturers stated that the box should be serviced in 20 thousand, after the regulations changed, but the design of the box remained the same). In the box only 6.5 liters of oil, but due to the design features, it will not be possible to change it entirely, about 4 liters are replaced.
Features of normal operation ACP AL4 (DP0)
Normal Driving Program (self-adaptive parameters)
Al4 box has several features of work characteristic of it. If something from the following occurs during the operation of the automatic transmission, there are no reasons for concern - these are normal phenomena when working the box, fear that something failed is not worth it.
- On an immentable box in selector mode D, the transition from i on II transmission is carried out with a noticeable push (therefore, as mentioned earlier, the box should be warmed every time before departing).
- Sharp braking also causes an impetus when switching from II to I, and this does not depend on the degree of health. The sharper braking takes place, the stronger will push. "Machines" do not really like torn rhythm ride.
- When switching from parking (P) to movement mode (D or R), the increased load on the engine is felt due to the operation of the hydrotransformer.
- With a sharp switching from the movement mode to the reverse mode (and on the contrary) there is a noticeable blow to the box. Moreover, it is characteristic not only for Al4, but for many other machines - before switching the direction of movement, a complete stop of the machine is necessary!
- The push when switching from i on II is not felt in the winter and sports modes of the gearbox. It is quite logical - in winter mode, the car starts with the second transmission, and in sports switching occurs over three thousand revolutions.
- When you click on the brake, a click is heard, thus the blocking is released.
- When starting the car in a hillside from the parking mode, it has a small rollback (about 10 centimeters).
AL4 There are several features of work
Typical Al4 Box Malfunctions
The most famous malfunction arising from this automatic transmission is the failure of the electro-hydraulic valves, which the people are called "solenoids". These valves are in the hydraulicone, one of them is responsible for controlling the oil pressure, and the second provides the torque of the torque converter. As a rule, if these valves fail (or incorrectly), the box switches to the alarm mode, the third transmission turns on. The main danger of this malfunction is that the torque converter is blocked, the box pump creates high pressure (from 10 atmospheres). Because of this, the box "burns", or breaks the brake tape earrings.
Also often occur faults of the automatic transmission sensor. On cars S. big mileage This sensor often begins to produce incorrect readings (the pressure measurement error increases by about 100 times), which leads to an error of pressure adjustment and incorrect operation of the machine. Another problem with which motorists are often faced - the incorrect operation of the hydrotransformer itself.
Some errors in the operation of the transmission are not at all connected with the box itself, but again, they will result in an error message of the gearbox, its switching into emergency mode. Such faults include, for example, brake wiring faults.
al4 Box faults
conclusions
This is one of the most popular boxes put on French cars. Its design is simple, but requires quite a thorough compliance with operational rules. There are nuances, for example, the box is prone to overheating. However, there are obvious advantages - the planetary mechanism of the box is exclusively reliable, the control electroble also works fine. Do you buy a car with such a box? Many motorists consider it not enough reliable for russian conditions operation. If you carefully follow the status of your car, love a quiet ride and carefully treat the transmission - Al4 will not give you a reason for anxiety. If you prefer the "torn" driving rhythm, quick overclocking with frequent switching, then it is better to choose a more appropriate option.
Service "ACAP Center Profi" manufactures automatic transmission of any complexity at a cost for you. Transmission breakdown is a serious problem that is often needed to solve in the shortest possible time. Our service works without days off, which will allow you to quickly repair your car on any day of the week, without delay and overpayments.
Order a replacement of the automatic transmission box at a bargain price!
The automatic transmission has a complex structure, especially more new car models. Without specialized tools, it is actually impossible to repair it, and therefore we provided the service with modern equipment, which helps to solve problems of any complexity.
The replacement of the ACAP box becomes necessary only if the repair is significantly more expensive to buy a new mechanism. Fortunately, most often, the problems with automatic transmission can be solved by the repair that we spend in a short time. Prices and terms of repair depend on the complexity of the breakdown, the cost of spare parts for a particular brand of the car and the need for the bulkhead of the automatic transmission.
In order to secure automatic breakdowns, we advise you to adhere to the manufacturer's recommendations, do not use aggressive driving style and use quality oils.
The average cost of repair in our service is 15 thousand rubles (does not include spare parts, consumables, turning, milling, welding and other works that may be needed during complex breakdowns).
We understand how important it is to always have a working car at your hand, and therefore if your car broke on the road - we offer urgent repairs from 20 thousand rubles. IN this case Evacuation of the car in the service center is free.
We work with all popular car stamps:
- Alfa Romeo,
- , Citroen, Chrysler
- Dodge.
- Fiat
- Honda.
- Jaguar.
- Lada
- Mazda, Mitsubishi.
- , other.
Even if you did not find the brand of your car in this list - do not doubt, we will be able to solve your problem, and therefore call and consult a specialist.
The advantages of our service:
- Operational repair automatic transmission. The repair period in our service is from 1 to 3 days. If you do not need to remove and lengthen the automatic transmission, then the repair can be made in just a few hours after the diagnosis and definition of a malfunction. Our masters will quickly make a replacement of sensors, hydraulic or electronic control unit, positioner repair, etc.
Attention! Removal and complete bidder of automatic transmission in our service takes only 1-3 days, but if it is required to produce special work or wait for the delivery of spare parts - the repair time is increasing. In the first place in our service is the quality of the work performed, and therefore we will never sacrifice them to make work faster. - Favorable prices. In our service one of the most low prices in Moscow.
- Extensive experience of workshops. Experience master-boxes for more than 12 years, and therefore it easily reveals and repairs breakdowns of any complexity.
- Modern equipment. Even a master with "golden hands" needs a high-quality tool and equipment for full-fledged repair. We equipped the service with all the necessary equipment, and therefore repair any modifications of automatic transmission.
- Guarantee. This is one of the most important indicators Qualitatively performed work. We give a guarantee for the work of our center for 3 years. During this time, all the obligations to eliminate the problems with the automatic transmission lay on the shoulders of our masters, but we assure you - after repairing the repair, the car will delight for more than three years.
- Permanent discount of 20% on plumbing work, after repairing automatic transmission in our service.
- Spare parts in stock and the possibility of ordering delivery by favorable price. With us you can always purchase hydroblocks, automatic transmission, variators Rebild and DSG. In addition, we provide the opportunity to order PowerShift from Europe (new or recovered). Thanks to the long and fruitful work with suppliers, we have the opportunity to deliver goods at a bargain price.
There is an opinion that the smoke. It is difficult to argue with the fact that Hrantzomashoma requires attention to himself, and only oil and pads are changing on it, as Maxra does, it's simply impossible. Especially weak place It is considered world famous automatic box PSA Al4 gears (DP0 on Renault). In the Internet, you constantly hear the screams: Peugeot only on the handle, the box falls apart, do not know how to repair it, etc.
So what we have. At the time of the first calls, the car ran about 135 thousand km.
Symptoms: jerking, emergency mode on an immentable box.
Computer: Pressure control error.
Cause: Heterogeneity of cold oil. On small runs, the error occurs mainly due to the crookedly written software The brains of the box and as a consequence of the wrong mode of operation of the pressure regulators of pressure, on large - the wear of the mechanical part, the pressure-regulator valve and oil pump. The long-awaited update of software for Russia was published in December 2008. All refreshments with AL4 it is recommended to update the software, and the error should aby.
Indication: Replacing pressure regulators valve, for about 8000r. I then agreed terribly and changed the working hydroener in the officials, so that it broke up instead of this money from 20.000r. Never change the valve block if the oil without impurities does not smell. The statements that it could be "tale" from temperature - no more than a myth. By the way, it's funny that the valve as a spare part is not sold as a spare part, so you have to put 50 tons for replacing the practically working part.
Because In my case, the depreciation of the mechanical part was almost obvious, despite the stabilization of the pressure after replacing the valve, the error again surfaced at 150 thousand km. There was no money for the bulkhead, so I waved the valves again. The scatter of pressure after the replacement was more permissible, but less than the emergency response threshold. However, it soon began to push when the first transmission is turned on, slipped on an immentable box. Obviously, the brake burned out, the disassembly of the removal box is required - the procedure is not cheap. Thanks to the autorun, the problem was solved up to 160 thousand km. At this point, a 20-minute heating of the box was required, which is unacceptable for urban exploitation.
So, on the mileage of 165 thousand km., Slap the Internet on the topic of all sides, it was decided to refine in MAI. Because of the New Year holidays and weekly queue before the new year, repairs took a month without two days.
As it should be, I post an overhead order-outfit.
Just happened by ~ 63,000 rubles. This is extremely budgetary repairs of the box, especially with regard to, in what place it was repaired. According to the cost of work in other firms, it was possible to save up to 5 thousand rubles, but I was thinking personally to paint. Standard warranty - 20,000 or year.
Price comparison for spare parts with existential. Redshed the positions that I did not find there with the go.
As can be seen, there was nothing to paint here.
Result: Box runs as new. There is no emergency mode on the cold box, the jerk when the transmission is turned on, the slip when switching transmissions is gone.
Well, finally, the main rule of operation of automatic transmission in winter time - At least a small heating of the box before driving. Roughly speaking 0-10 degrees - 30 seconds on the drive or reverse, -10 - 0 - 2-4 minutes, less -10 - preferably at least 5 minutes. All numbers taking into account the cold engine. Here, the small advantage of AL4 is that she has no own radiator, it uses the cooling system overall with the engine, so when heating the engine, the oil is partially heated from the engine.
Of course, the timely control of the oil level is very important, because due to low pressure Not only can quickly leave the friction elements, but because of the oil starvation, the planetary will quickly scatter, and this is already completely different money. Well, it is recommended to generally in the winter not to boost much at least the first 5 minutes drive. I honestly before the first replacement of the valves did not comply with these rules, and the last 10 thousand before the repair, on the contrary, raped the box (I don't care). As you can see from the invoice, it did not affect the cost of repair.
I hope this ptsco will give at least a little reason to doubt that worse than Al4 boxes does not happen, and it is not worth it with boiling water from it too.
And yes, the shit mechanic shit rolls. Rear drive Best of all, especially if Mercedes himself bought himself.
Threat I can answer only to answer tomorrow
