E39 series BMW 5

since 1996-2001 of release

Repair and car operation

+ Introduction
+ Maintenance instruction
- Current leaving and service
   Schedule of routine maintenance
   Current leaving
   General information on control
   Check of levels of liquids
   Check of a condition of tires and pressure in them
   Replacement of impellent oil and oil filter
   Check and adjustment of turns of idling of the engine and level WITH
   Replacement of an element of the air filter
   Replacement of the filter of air of salon
   Check of brake system
   Visual control of the bottom and body elements
   Check of level of liquid of system of hydrostrengthening of a wheel
   Wheels and tires. Rotation, replacement, balancing and leaving. Snow chains. "Sekretki" of wheels. Elimination of trembling of a wheel
   Check of a condition and replacement of hoses of an impellent compartment
   Check of a condition of driving belts
   Check of a condition of the battery, care of it and charging. Replacement of an element of a food DU brelka
   Check and replacement of spark plugs
   Check of functioning of fuel system. Winter operation of the Diesel engine
   Check of functioning of system of cooling
   Check of a condition of system of production of the fulfilled gases
   Check of a condition of components of a suspension bracket and steering
   Check of a condition of protective covers of power shafts
   Greasing of locking devices
   Visual check of seat belts
   Check of a condition and replacement of brushes of screen wipers
   Replacement of brake liquid
   Replacement of liquid of system of cooling. Check of frost resistance of a cooler. Visual check of system of cooling
   Sediment removal, replacement of the fuel filter. Air removal from fuel system of the diesel engine
   Replacement of transmission oil of a manual box of gear shifting
   Replacement of lubricant liquid of differential
   Check of thickness of a conducted disk of coupling
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics

daftar slot online

Check of brake system

The dust being formed as a result of wear of slips and accumulating on components of the brake mechanism, can contain asbestos hazardous to health. Do not blow this dust by means of the compressed air and do not inhale it! Do not use solvents on the basis of gasoline for dust removal. The dust should be washed away a special cleaner of brake system or methyl alcohol in drain capacity. After rubbing of components of brake system by a damp rag this rag and contents of drain capacity should be kept in the closed and signed container. Further whenever possible try to use components not containing asbestos.

Except checks through the established intervals of time a condition of brake mechanisms it is necessary to carry out each time at removal of wheels or at emergence of signs of malfunction in system. For driving safety the checks of brake system described below procedure are most important of all procedures made by you on car service.

Signs of malfunctions in brake system

Disk brake mechanisms have the built-in indicators of wear of frictional slips which signal that wear of slips reached critical size. Thus slips should be changed immediately, differently brake disks will be damaged, and they will need expensive repair.

Any of listed below signs can point to potential defect of brake system:
   a) When squeezing a pedal of a brake the car "withdraws" in one party
   b) Brake mechanisms when braking publish scraping or squealing sounds
   c) The pedal of a brake has an excessive course
   d) The pedal of a brake pulses (it normally only at ABS system work)
   e) Leakages of brake liquid (usually on tire or wheel inside) are observed

In case of detection at least one of these signs immediately examine brake system.

Brake lines and hoses

In brake system steel brake tubes, except for the flexible reinforced hoses at forward wheels and as connections at the back bridge are generally used. Regular survey of all these lines is very important.


1. Park the car on an equal platform and switch off the engine. Remove caps from wheels. Weaken, but do not remove bolts of fastening of all four wheels.
2. To Poddomkratta a back part of the car and reliably establish on support.
3. Remove wheels (address to Sections “Poddomkrachivaniye and towage” or “Governing bodies and receptions of safe operation”).
4. Clear pipelines an autocleaner.

Pipelines for protection against corrosion have a plastic covering. If the covering is damaged, it can lead to pipeline corrosion. For this reason it is not necessary to clear pipelines a wire brush, an emery paper or a screw-driver.

5. Shine with a lamp and check the brake pipelines going from the main brake cylinder to the ABS block and from it to separate wheel cylinders. The main brake cylinder is under the tank of brake liquid.
6. It is not allowed to bend and rumple pipelines. It is necessary to exclude also emergence of corrosion damages or retyrannies. At emergence of the specified defects on this site it is necessary to replace the pipeline.
7. Brake hoses connect pipelines to mobile elements of brake system. They are executed from a high-strength material, but are subject over time to formation of a time, swelling and damage by sharp subjects. At emergence of the specified damages hoses should be immediately replaced with the new.

8. Bend brake hoses hands in different directions to reveal existence of damages. Hoses cannot be braided. Watch straightforwardness of color lines on hoses if they are available!

9. Turn a steering wheel to the right and to the left against the stop. Hoses should not concern body or suspension bracket elements somewhere.
10. Junctions of hoses and the pipeline should not have traces of leakages.
11. Lower the car on wheels.

Disk brake mechanisms

At achievement of a certain wear of brake shoes of forward and back brakes on the dashboard the signaling device lights up. In this case it is necessary to replace brake shoes urgently.


1. If it was not made yet, поддомкратьте the car and reliably establish it on support.
2. Mark the provision of wheels concerning naves that after installation otbalansirovanny wheels occupied the former situation. Weaken bolts of fastening of a wheel. Remove wheels.
3. Now it is possible to see supports of disk brake mechanisms in which there are blocks. In each support there are external and internal blocks.

4. Visually check thickness of blocks from above through a support.

5. Check thickness of an external block. If the thickness comes nearer to a wear limit, remove a block and measure its thickness by means of calibre.

6. A limit of wear of a brake shoe of lobbies and back brakes is the thickness of 2 mm.
If the thickness of frictional slips is less, or if they are worn-out on the one hand more than with another, it is necessary to replace blocks. Remember that frictional slips are usually pasted on a metal substrate of a block - its thickness should not be considered at measurement. Always replace blocks on both parties of the car (in a set on one axis) even if one of them is worn-out only, otherwise process of braking will be non-uniform.

Experience shows that wear of a brake shoe in 1 mm corresponds at least 1000 km of run. It corresponds to adverse service conditions. At normal operation firmness of blocks is much higher. At thickness of a brake shoe of a disk brake of 5 mm (without a back plate) the block can be maintained still not less than 3000 km.

7. Remove supports, without disconnecting brake hoses.
8. Check a condition of a brake disk. Examine it on existence of furrows, deep scratches and overheat sites (they look as the blue or decoloured spots). At detection of signs of damages or wear the disk can be removed and pierced in a mechanical workshop; if there is no such possibility, it is necessary to replace it. Both in that and in other case it is necessary to replace or pierce both disks even if one of them is worn-out only.

Drum-type mechanisms of the parking brake


1. Using instructions of Head Brake system, remove back brake disks with drums.

2. Measure thickness of frictional slips on boots of back brake mechanisms and examine them on existence of signs of pollution by brake liquid or greasing. If the slip has thickness within 1.5 mm over heads of rivets or the metal basis in the thinnest place, replace all boots. Address to an accompanying illustration. Boots are subject to replacement also burst, zapolirovanny to shine and polluted by brake liquid or greasing. Procedure of replacement is described in Head Brake system.

3. Check a condition of coupling and holding springs of boots, and also the adjusting mechanism. Make sure that all these components are correctly established and are in working condition. The worn-out or deformed springs can serve as the reason of premature wear of frictional slips.
4. Check wheel cylinders on existence of signs of leaks, having accurately removed protective rubber covers. Existence of insignificant traces of moisture under covers is allowed. If under them brake liquid is found or it follows from the wheel cylinder, it is necessary to repair or replace cylinders capitally (address to Head Brake system).
5. Check drums on existence of deep scratches, furrows of cracks and peregrety sites which look as the decoloured spots. If the revealed defects cannot be eliminated by means of an emery paper, the drum should be pierced in a workshop (address to Head Brake system for more detailed information).
6. Following indications of Head Brake system, establish brake disks with drums.
7. Establish wheels, but yet do not lower the car.

Check of reliability and course of the lever of the parking brake


1. To protozoa, and it is possible, the most obvious way of check of operation of the parking brake is car installation on an abrupt slope with the cocked brake and transmission in neutral situation (at check you should be in the car). If the parking brake does not hold the car from a skatyvaniye, it is necessary to make its adjustment as it is described in the Section Adjustment of the parking brake.
2. Lift and put a back part of the car on supports.
3. Tighten the parking brake on 5 teeth. Turn wheels by hand. On wheels resistance from brake action should be felt easy.
4. Tighten a brake on 6 teeth. Wheels still should be turned manually. If for braking creation the brake has to be tightened further, adjust a brake as it is described in the Section Adjustment of the parking brake.
5. Lower the car on wheels.