The gearbox is a bonding mechanism between the engine and transmission. The principle of its work at first glance is quite simple: it transmits rotation from the engine flywheel to the transmission, and then to the wheels. If the rotational moment is transmitted by shaft synchronizers, which are practically contact with each other, then in the automatic box the possibility of contacting the shafts is excluded. The fact is that the rotational moment from the engine to the transmission is transmitted by the centrifugal force in the hydrotransformer (in rare cases there is a variator), and it helps to ensure stepless switching speeds.
Instructions for replacing oil in the Citroen C5 automatic transmission.
It looks like this: the engine spoys the flywheel of the leading shaft, the one, in turn, transmits rotation on the blades of the slave shaft, but it does not happen because the blades come into contact with each other, but because the centrifugal force spins the oil to which the gearbox is filled . Consequently, oil is not only protected from wear for parts of automatic transmission, but also an integral part of the mechanism itself. Without it, the box can not work, which means sometimes it has to change it. Citroen C5 occurs for various reasons and in different ways.
Replacement frequency
There are several reasons for changing the component in an automatic box. The most obvious is mileage. The manufacturer recommended by the Critical Range for Citroen C5 automatic transmission is 50 - 60 thousand kilometers. Despite the lack of need for special attention to the box, the oil can spoil earlier than the manufacturer is calculated. Often to replace car owners forcing harsh operating conditions. There are other reasons, but they are rare enough. If the oil is spoiled, the car will let you know about it.
The most common signal is to switch on overestimated circulation. For example, if a car when switching from the first to the second, etc., speeds are usually the revolutions indicator of 1500 - 2000, and then suddenly it occurs on turns of 2500 without dynamic overclocking, it means that something is wrong with oil. Of course, each "machine" has its own speed limit to go to the next speed, therefore control periodically the tachometer readings during switching. Signal to replace can also be strong shocks when switching speed, when the drive can turn off for a few seconds.
Which oil fill
The automatic transmission is sensitive to. Therefore, it is almost impossible to determine how the automatic oil is suitable for Citroen C5 automatic transmission. Typically, the name of the oil is written in the car's technical passport - from the moment of purchase there are basic information, as well as maintenance records. If there is no such information in the technical passport, you can search for it on the dipstick or on the inside of the hood cover. As a last resort, on a good one hundred will be prompted which choice to do, and is also partially or completely.
Partial replacement
Usually, owners of cars with a box are choosing a partial oil replacement, considering it a more budget option. Indeed, under certain circumstances it is. If the machine is purchased without a run from the official dealer, then partially replaced the component in the automatic transmission will really be cheaper. To carry out such a replacement, you need to warm up the car, unscrew the drain plug, drain part of the fluid, turn back the drain plug, and then add the same than the new one through the bay hole. Thus, the spent component will remain no more than 1/3. But be sure to pay attention to the color of the oil - a little darkened can be replaced partially, but if the oil is too dark, then it is better to fully replace.
Procedure for a complete replacement
Full replacement is not such a budget option, but more efficient. It is recommended when buying a car with mileage, if the new owner does not know the brand and the type of previously replaced components. Also, the complete will be more useful to partial in case of switching on increased revs or when the jolts occur. In order for it to be really complete, a certain equipment is necessary. The algorithm for conducting such a replacement is not very different from partial, but has more stages:
After a complete replacement, it is worth the auto and give it a little work on "idle." It is important to remember that the full replacement should be held on a hundred with special equipment. Perhaps the oil will be used twice as much, but you will be absolutely sure that there are no old oil or friction dirt in the hydraulic block, which can scratch the "brains" automatic transmission.
Authoritative manufacturers of automatic gearbox (automatic transmission), such as ZF, AISIN and GM, in one voice declare the need to constantly monitor the state and level of transmission oil (ATF), as well as carry out its regular replacement according to the established regulation. Only in this way it is possible to ensure reliable and uninterrupted operation of the unit over a long service life.
The frequency of replacement of transmission oil is indicated in the service book of your car, the procedure is the same as required as the entire complex of the planned maintenance work (COM). To be completely confident in the performance of automatic transmission, control the level and state of ATF is required at least once every 10 thousand km mileage. If the oil lost transparency and purity, then this is a sure sign that the replacement time has come.
Partial replacement of oil automatic transmission Citroen
This method attracts car owners to what can be performed independently without the participation of car service specialists, and therefore can be saved. The old oil is removed through the drain hole, and if there is no such, then it is necessary to dismantle the pallet. In this case, only 30 to 50% ATF merges, everything else will continue to be in the automatic transmission. The amount of fillible new oil should be equal to the volume of the fusion.
Obviously, this technique allows you to update, but not replacement. By carrying out several such cycles at an interval of approximately 100 km of run and spending a large amount of oil, you can achieve an acceptable result.
Full oil replacement in Citroen automatic transmission
For long-term uninterrupted operation of the automatic transmission, we recommend full oil replacement (ATF) with a certain frequency. In our car service, the complete replacement of oil is made using special equipment, while accurate oil dosage is ensured and automatic consideration of the volume of the fusion and replacing technical fluid.
In addition, various transmissions use different oils, the presence of which in the warehouse specialists of our service are specifically taken.
A complete timely replacement of oil and filters in automatic transmission 100% extends the transmission service life.
What frequency need to change the oil in the automatic transmission?
The average frequency of regulatory work depends on the type of box:
hydraulic automatic transmission - every 40-50 thousand km of run;
variators (CVT) - 30-50 thousand km;
robotic checkpoints (MTA) - 40-50 thousand km.
Along with the oil necessarily subject to replacement and filter. The whole range of events allows you to maintain automatic transmission in a fully working condition and avoid costly repairs.
Timely replacement of oil in Citroen C5 automatic transmission allows you to significantly extend the resource of transmission parts and avoid an expensive unit. In addition, the renewal of the transmission fluid has a positive effect on the comfort of the vehicle management: gear shift becomes softer and quiet.
When to change?
Replacing the oil in Citroen C5 automatic transmission is not provided by the manufacturer - the liquid flooded in the factory setting is designed for the entire service life of the gearbox. However, taking into account the Russian road-climatic features, the service is still worth carrying out: experts recommend to do it with periodicity of 60,000 mileage kilometers.
If data on the last change of oil is missing, then the reason for the operation can serve:
- aTF color change (darkening);
- the presence of a characteristic "burned" smell;
- detection in oil traces of metallic dust;
- failures in the work of the transmission.
How to change?
The oil is changed in two ways:
- partial replacement that implies the removal of the drive of the CTP crankcase and the installation of the new filter element (performed manually);
- complete (hardware) replacement, requiring connection to a special bench.
The oil replacement procedure in Citroen C5 automatic transmission is associated with a number of difficulties caused by the constructive features of the car. That is why it is logical to entrust professionals.
ATF oil functions in Citroen C5 automatic transmission:
- effective lubrication of rubbing surfaces and mechanisms;
- reduced mechanical load on nodes;
- heat dissipation;
- removal of microparticles resulting from corrosion or wear of parts.
- wear salts of automatic transmission;
- wear surfaces of shafts, the occurrence of the gap between the shaft and the sealing element;
- wire of the sealing element of the automatic transmission and shaft of the speedometer drive;
- the backlash of the primary shaft automatic transmission;
- damage to the sealing layer in compounds between parts of automatic transmission: pallet, automatic transmission, Carter, clutch housing;
- weakening bolts that provide the compound of the above parts of the automatic transmission;
Due to lack of oil or low-quality oil in Citroen C5 automatic transmission:
- plungers and hydroblock channels are clogged with mechanical particles, which leads to a deficiency of oil in packets and provokes wear of the sleeve, rubbing parts of the pump, etc.;
- overheat and quickly wear steel transmissions;
- overheat and burn rubberized pistons, stubborn discs, clutch drum, etc.;
- warm and comes into disrete of hydraps.
Check the oil level in Citroen C5 automatic transmission using probe. Oil dipstick has two pairs of labels - the top pair of Max and Min allows you to determine the level of hot oil, the lower pair is on the cold. Using the probe is easy to check the oil condition: it is necessary to drop the oil to clean white tissue.
When choosing an automatic transmission of Citroen C5, the replacement should be guided by a simple principle: it is best to use the oil recommended by Citroen. In this case, instead of mineral oil, it is possible to fill a semi-synthetic or synthetic, but in no case cannot be used by the "class below" oil from the prescribed one.
Synthetic oil for Citroen C5 automatic transmission is called "unplaced", it is poured for the entire service life of the car. Such oil does not lose its properties under the influence of high temperature and is designed for a very long term of using Citroen C5. But it is impossible to forget about the appearance of a mechanical suspension as a result of the wear of the frictions with a very significant mileage. If the automatic transmission is kept in conditions of lack of oil for some time, it is required to check the degree of contamination and perform a replacement if necessary.
Methods for replacing oil in Citroen C5 automatic transmission:
- Partial oil replacement in Citroen C5 box;
- Full oil replacement in Citroen C5 box;
The full replacement of the Citroen C5 automatic transmission oil is made using the installation to replace the oil in the automatic transmission, Specialists in the car service. In this case, there will be more ATF oil than Citroen C5 automatic transforms. For flushing out the one-hour or double volume of fresh ATF. In terms of cost, it will be more expensive than partial replacement, and not every car service provides such a service.
Partial replacement of ATF oil in a Citroen C5 automatic transmission box for a simplified scheme:
- We unscrew the drain plug, drain the old ATF oil;
- We unscrew the DCP pallet, which, besides its bolts, processed along the contour of the sealant.
- We get access to the automatic transmission filter, it is desirable to change it with each oil change, or rinse.
- At the bottom of the pallet there are magnets that are necessary for collecting metal dust and chips.
- We clean the magnets and rinse the pallet, wipe dry.
- We establish the automatic transmission filter into place.
- We establish the trash of automatic transmission to the place, replacing the laying of the drive of the automatic transmission, if necessary.
- Tighten the drain plug by replacing the drain plug gasket for automatic transmission.
