Home Transmission What is the pressure in the tires bmw x5 e53. Tire pressure monitoring system. Wheel and tire parameters for this version

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What is the pressure in the tires bmw x5 e53. Tire pressure monitoring system. Wheel and tire parameters for this version

The BMW X5 is the first full-fledged SUV of the German brand, designed to travel on any type of road. The SUV was introduced to the European market in 2000, and its main competitors were German Porsche cayenne, Volkswagen Touareg and Japanese Infiniti FX.

Compared to its “classmates”, the BMW X5 demonstrates impressive dynamics and better handling thanks to the xDrive system. But this SUV cannot be attributed to economical models. Nevertheless, the car is extremely popular. In 2010 it was named "Luxury SUV of the Year".

BMW X5 remains the most demanded used SUV among Russians. In addition, it regularly makes it into the top 3 most stolen cars. And usually the model is kidnapped "to order."

Premiere of the first bmw off-road vehicle X5 (E53) took place in 1999 in Detroit. It is no coincidence that the German brand chose America as a show place - here large cars have always been very popular. The model arrived in Europe a year later. Since the manufacturer owned brands Range rover, then some of the components of the products of this company "migrated" to the BMW X5. So, the developers borrowed the Off-road engine control system and the Hill Descent system. Some elements were taken from the BMW E39 of the fifth series. The letter "X" meant the presence of all-wheel drive, the number "5" - the base from the 5th series.

Unlike other SUVs, the car received a monocoque body and a striking design. The impressive radiator grille, decorated in the style familiar to BMW models, immediately attracted attention. The body of the model turned out to be both sporty and luxurious. The picture was complemented by a hood with three protruding lines and small fog lights. Back door made bivalve. Despite the large volume of the trunk, place there bulky items it was hard.

The BMW X5 E53 salon impressed with the luxury and comfort of the "luxury" category. The decoration used natural wood inserts and leather. A variety of seat and steering wheel settings ensured maximum comfort for the driver and passengers. Due to the high landing, good overview and excellent security.

The standard equipment list included side and front airbags, climate control, heated all seats, rain sensor, CD audio system, electric glass sunroof, xenon headlights and headlight washers. The SUV received an independent suspension.

BMW X5 E53 was offered in the following modifications:

4.4 liter gasoline unit V8 made of aluminum (286 hp), complemented by a 5-speed Steptronic gearbox.
3-liter inline six (231 hp) with 5-speed Steptronic gearbox. This version has become the most popular in Russia.
2.9-liter diesel engine (184 hp) with the same transmission.

Dimensions (edit)

These versions were equipped with the following types of wheels and tires:

7.5J wheels 17 ET40 (7.5 - width in inches, 17 - diameter in inches, 40 - positive offset in mm), tires - 235 / 65R17 (235 - tire width in mm, 65 - section height in%, 17 - rim diameter in inches);
wheels 8.5J for 18 ET45, tires - 255 / 55R18;
wheels 10J for 20 ET38, tires - 275 / 40R20;
wheels 10J for 22 ET42, tires - 265 / 35R22;
wheels 10J for 22 ET42, tires - 295 / 30R22;

The flagship of the series was a modification with a 4.6-liter "charged" V8 unit (347 hp), which in 2003 was replaced by a 4.8-liter "charged" V8 engine (360 hp). In the "base" they were combined with a 5-speed Steptronic gearbox.

Wheel and tire parameters for this version:

wheels 9.5J for 20 ET45, tires - 275 / 40R20;
wheels 9J for 20 ET45, tires - 265 / 45R20;
wheels 9J for 20 ET45, tires - 275 / 40R20;
wheels 10J for 20 ET38, tires - 295 / 40R20;
wheels 10J for 22 ET40, tires - 265 / 35R22;
wheels 10J for 22 ET40, tires - 295 / 30R22.

Other parameters

Other wheel parameters for all modifications were the same:

PCD (drilling) - 5 by 120 (5 - the number of holes, 120 - the diameter of the circle on which they are located in mm);
fasteners - M14 by 1.5 (14 - stud diameter in mm, 1.5 - thread size);
the diameter of the central hole is 72.6 mm.

Generation 2

In 2006, the German auto maker presented the second generation BMW X5 (E70) in Paris. The SUV has significantly increased in size and received a more aggressive body design. The silhouette of the model retained the usual proportions, and the lower part of the body was additionally protected by a massive body kit made of black plastic. The surfaces of the model were made more sculptural and plastic. As before, attention was drawn to the expressive radiator grille and original headlights. At the edges front bumper air intakes appeared, highlighted with contrasting material. In terms of aerodynamics, the model has become the best in the class.

By increasing the length by 200 mm, the interior of the BMW X5 E70 has grown significantly. This allowed the rear passengers to feel more comfortable or to accommodate 3 rows of seats. The interior itself has become more comfortable and conservative. Dashboard the manufacturer has updated. The car received the AdaptiveDrive system, which constantly analyzes the many characteristics through which the shock absorbers were controlled.

Optionally, a unique Head-Up system appeared - projection of information on windshield... The driver could see all important data right in front of him.

The line has also been updated power units... The base for the model was a 3-liter V6 unit (272 hp). Also available were a 4.8-liter V8 (355 hp), a 3.5-liter (286 hp) and a 3-liter diesel (235 hp). All versions had four-wheel drive and were equipped with a 6-speed "automatic".

Wheel characteristics

Characteristics of disks and tires (the same for all modifications):

wheels 8.5J for 18 ET46, tires - 255 / 55R18;
wheels 8J for 18 ET48, tires - 255 / 55R18;
wheels 10J for 20 ET48, tires - 275 / 40R20;
wheels 10J for 21 ET48, tires - 285 / 35R21.

Other wheel parameters:

PCD (drill hole) - 5 x 120;
fasteners - M14 by 1.25;
the diameter of the central hole is 74.1 mm.

Generation 2 Restyling

In 2010, the BMW X5 E70 has undergone a restyling. The creators tried to make the most successful SUV even better. There were no major changes in the model's appearance. The car received enlarged air intakes, a slightly modified bumper, a new grille and redesigned headlights and taillights... The new LED rings around the headlights looked especially impressive. The transformations made the SUV more dynamic, but retained its elegance. The picture was completed with new rims.

The changes have hardly affected the interior. Among the additions, the cup holders should be highlighted.

Major transformations have taken place under the hood. All engines of the restyled BMW X5 E70 have become more powerful and more economical. The buyer was offered modifications with a base 3.5-liter "six" (306 hp) and turbodiesel 3- and 4-liter units (245 and 306 hp). More top-end versions with a 4.4-liter gasoline engine (408 hp) and a 4.4-liter tubodiesel (381 hp) were also available.

Wheel dimensions

For all versions, the following wheels and tires were used:

wheels 8.5J for 18 ET46, tires - 255 / 55R18;
wheels 9J for 19 ET48, tires - 255 / 50R19;
wheels 10J for 20 ET48, tires - 275 / 40R20;
wheels 10J for 21 ET40, tires - 285 / 35R21.

The units were combined with an 8-speed "automatic" ZF. Assembly this generation partially performed at the Russian company Avtotor.

Generation 3

In September 2013, the premiere of the 3rd generation BMW X5 (F15) took place. The platform of the model has not changed, but the car is slightly lower and wider. All improvements were reduced to geometry. The characteristic features of the new SUV include a bumper with a pronounced geometric design and narrower optics. The hood of the model has become longer, and the “family nostrils” have ceased to fall back (they were placed vertically). Changed 3-dimensional rear lights and front air intakes. A dynamic line appeared on the side, running along the door handles and a slot on the front "fenders". The exterior of the SUV has become more modern. BMW X5 F15 was offered in 2 design lines: Design Pure Excellence (body-colored trims, black “nostrils” and chrome-plated front) and Design Pure Experience (unpainted edging of the arches and silver color of the radiator strips).

The interior of the model has become more spacious, the volume of the trunk has increased to 650 liters. It was possible to give a special chic to the interior due to contrasting inserts. The main iDrive display has grown to 10.25 inches (it was placed above the center console). The control unit was installed to the right of the gear selector.

Only four-wheel drive versions with an 8-speed automatic transmission and the following types of engines were supplied to Russia:

3.5-liter inline six (306 hp);
4.4-liter V8 unit (405 hp);
3-liter diesel (218 hp);
3-liter diesel (249 hp);
3-liter turbodiesel (381 hp);
4.4-liter biturbo engine (575 hp);
313-horsepower hybrid (2-liter petrol turbo engine and 113-horsepower electric motor).

Wheel and tire specifications:

wheels 8.5J for 18 ET46, tires - 255 / 50R18;
wheels 9J for 19 ET48, tires - 255 / 50R19;
wheels 9J for 19 ET37, tires - 255 / 50R19;
wheels 10J for 20 ET40, tires - 275 / 40R20;
wheels 10J for 21 ET40, tires - 285 / 35R21.

A tire pressure monitoring system (RDC) or a tire damage system (RPA) monitors the pressure in all four wheels while the vehicle is in motion. When the pressure in one or more tires drops, an indicator on the instrument panel comes on, which informs that the pressure in the tire (s) is noticeably dropping. The pressure standards (1 bar = 1 kgf / cm 2) of air in the tires are shown in the plate attached to the end of the driver's door (Fig. 1.58) and are indicated at normal temperature for tires. recommended by BMW.

When driving with a trailer, you must be guided by the figures given for the maximum loaded vehicle.

When checking the tire pressure, do not forget about the spare or compact wheel, the pressure in it should be 4.2 bar. Checking the pressure in the tires should be carried out some time after it has been adjusted in order to enable the processes in the injected air to proceed.

Attention!

Check the tire pressure regularly, at least twice a month, and every time before a long trip.

When installing tires of a different size and brand, the pressure may not correspond to the table value. The compact wheel does not have an RDC sensor.

Incorrect tire pressure negatively affects the car's handling and increases the risk of tire damage. shortens their service life and can cause an accident. In order to be able to remember the correct pressure values, it is necessary to check the air pressure in the tires of all wheels using the device (pressure gauge) and compare them with the table values and, if necessary, correct it. Now you can turn on the RDC system. The RDC system must be turned on in the following order:

check and correct tire pressure;
turn the ignition key to position "2", start the engine, but do not move from a place;
press the button (Fig. 1.59) and keep it pressed until the system indicator on the instrument panel lights up in yellow for a few seconds;
start moving.

Release the key. A few minutes after the start of the movement, the RDC system will remember the tire pressure readings and take it as the programmed value.

If the tire pressure has been corrected, then it is necessary to repeat the procedure for memorizing it by the RDC system, and the system turns on automatically when the ignition key is set to position "2" and the system is always in working order during the movement.

If the pressure in one or more tires drops, the yellow indicator on the instrument panel comes on and the message “Check Tire Pressure” appears on the Check Control display.

Sometimes the requirement to check the pressure appears soon after it has been corrected. This means that when adjusting the pressure, the tires were inflated or not inflated. It is necessary to check the pressure again, bring it to normal and turn on the RDC system again.

If the tire is damaged (sudden pressure release), the yellow indicator on the instrument panel lights up, appears on the system display automatic diagnostics the message “Tire Defect” and the buzzer sounds.

In such circumstances, it is necessary:

take your foot off the gas pedal;
if the road conditions allow, do not use the brake pedal or use it with extreme caution;
steer the car, avoiding sudden movements with the steering wheel;
slow down to a complete stop of the car;
replace the damaged wheel.

It is important to remember that the RDC system can be interfered with by other systems and devices operating at its frequency. During interference, the yellow indicator on the instrument panel comes on and the message “Tire Control Inactive” appears on the Check Control display. Similar information is received:

in case of system problems;
if one of the wheels does not have an RDC system unit;
if the car has other wheels with the RDC system unit, besides the spare wheel;
after the use on wheels of non-standard units of the RDC system (exchange of information on a different frequency). Memorizing new identification numbers takes several minutes, only after that the system is able to react to a drop in tire pressure and notify about it.

Wheel pressure adjustment car bmw it is recommended to carry out at least once every two to three months. If this rule is not followed, the car may be less controlled, and it is also possible to get such problems as:

At very low pressure, the edges of the tires are strongly worn out. There is also a high likelihood of damage to the rim and sidewall of the tire, especially at full load or at high speeds.
At high pressures only the central part of the tread starts to wear out. The load on the car's suspension increases and the car becomes stiffer. The braking distance is increased and the road grip deteriorates.

ATTENTION! Regulate the pressure in BMW tires only necessary in "cold" tires, ie. when the car has not moved for several hours. Otherwise, when the tires "cool", the pressure in them will decrease, and the adjustment will have to be carried out again.

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