BMW 5 series E39

Since 1996-2001 of release

Repair and car operation

+ Introduction
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Antiblocking system
   Removal and installation of lobbies brake колодок
   Removal and installation of a brake disk / of a support of a forward brake
   Removal and installation back brake колодок
   Removal and installation of back brake supports
   Removal and installation of a brake disk of back wheels
   Measurement of a thickness of a brake disk
   Brake liquid
   Removal of air from brake system
   Replacement of brake pipelines
   Replacement of a forward brake hose
   Check of the vacuum amplifier of a brake
   Removal and installation brake колодок a lay brake
   Adjustment of a lay brake
   Removal and installation of the lever of a lay brake
   Removal and installation of a cable of a lay brake
   Check and replacement of the switch of a stoplight
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes
+ System of onboard diagnostics

Adjustment of a lay brake

The lay brake structurally completely is independent of working brakes. Therefore deterioration of a lay brake is insignificant. Corrosion of a brake drum or pollution brake колодок reduces the brake moment. If are regulated old колодки, a lay brake it is necessary to earn extra. For this purpose since speed of 40 km/hour cautiously tighten a lay brake so that braking process has begun. Keeping speed, tighten a brake on one tooth and pass about 400 m. Thus, traces of corrosion act in film and the postponed products of deterioration leave.

Adjustment of a lay brake is required at:
   a) Replacement колодок a lay brake.
   b) Replacement of a brake drum.
   c) position Adjustment колодок.
   d) Necessities of the big inhaling (more than 10 teeth).

The cable of a drive of a lay brake and all mobile elements should have an easy course.


1. Turn on at both back wheels on one bolt of fastening of a wheel.
2. Lift and establish the car on supports.

3. Uncover the lever of a lay brake forward through the handle. Address to an accompanying illustration.

HUNDRED apply special adaptation BMW-341030 to adjustment of lay brakes. The adaptation represents two face keys entering each other, adjusted on the various sizes of a counternut and an adjusting nut. If such adaptation is not present, it is necessary to uncover the lever and if necessary the central console.

4. Uncover the lever of a lay brake. For this purpose ослабьте a bolt (4). Turn out bolts (5) and (6), having removed preliminary caps. Disconnect a cover. For this purpose delay a cover behind upwards towards a seat of the driver and take out.

5. Turn on two counternuts and adjusting bolts (arrows on an accompanying illustration) a cable of a drive of a lay brake. Completely ослабьте cables.

6. Completely turn out one bolt of fastening on each wheel. Turn a wheel so that the aperture has occupied the bottom position. Will light a pocket small lamp in an aperture. The adjusting nut should be thus visible.

Wheel, as is shown in an accompanying illustration, it is not necessary to remove.

7. Rotation of an adjusting nut (1) screw-driver (2) press brake колодки so that the wheel could not be turned manually. After that turn on back on 8 teeth an adjusting nut. If the adjusting nut on the left side of the car rotates in an arrow direction (address to an accompanying illustration) brake колодки adjoin to a drum. On the right side of the car the nut rotates in an opposite direction.

8. After adjustment check up, whether wheels freely rotate. If is not present, turn away an adjusting nut. Wheels should rotate necessarily freely.

9. Adjust cables of a drive of a brake. For this purpose tighten the brake lever on 4 teeth and screw adjusting nuts (arrows on illustrations) so that the left and right back wheels could be turned in regular intervals by hand. Release the lever of a lay brake and check up, whether wheels freely rotate. If necessary repeat adjustment.

10. Completely release the brake lever.
11. Include ignition. The control lamp of a lay brake should not to light up.
12. Tighten the lever of a lay brake on 1 tooth. Thus braking of back wheels should not be. Otherwise it is necessary to spend adjustment again.
13. Tighten the lever of a lay brake on 2 teeth. The control lamp should light up now. If is not present, turn in inclusion contact on the brake lever.
14. Switch off ignition.
15. Tighten counternuts, keeping adjusting nuts.
16. Fix a lateral cover of the lever of a lay brake. Put into place caps of bolts.
17. Hook from below and fix from above a forward cover of the lever of a lay brake.
18. Lower the car on wheels.
19. Screw two bolts of fastening of back wheels and tighten their moment of 100 Nanometers. Establish caps of wheels.