VW Passat B5

since 1996 release

Repair and operation of the car

Foltsvagen Passat B5
+ Maintenance instruction
+ 1. Maintenance
+ 2. Engines
+ 3. Cooling system
+ 4. Fuel system
+ 5. Engine management
+ 6. Exhaust system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
- 10. Brake system
   10.2. General information
   10.3. ABS/EBV/EDS/ASR/ESP systems
   10.4. Check of the vacuum amplifier of brakes
   + 10.5. Replacement of front brake shoes
   10.6. Replacement of back brake shoes
   10.7. Check of a brake disk
   10.8. Brake disk
   10.9. Pumping of the hydraulic brake system
   + 10:10. Brake pipelines and hoses
   10:11. Stoplight switch
   10:12. Lever of the emergency brake
   10:13. Adjustment of the emergency brake
   + 10:14. Cable of the emergency brake
   10:15. Main malfunctions of brakes
+ 11. Body
+ 12. Heating, ventilation
+ 13. Electric equipment

10.7. Check of a brake disk


Place of measurement (arrow) of thickness of a brake disk


During the work of brake shoes brake dust which contains asbestos, unhealthy forms. Therefore when cleaning brake shoes do not use compressed air and do not inhale dust.

In need of replacement of a brake disk it is also necessary to replace also the second brake disk for ensuring uniformity of braking. When replacing brake disks it is also necessary to replace brake shoes.

1. Tighten the emergency brake, then lift a forward part of the car and record on supports. Remove the corresponding forward wheel.
2. Establish a washer 10 mm thick on a bolt of fastening of a wheel and screw in a fastening bolt in an opening of a brake disk.
3. Slowly turn a brake disk so that it could be considered from two parties. Wear of a brake disk from blocks has to be in admissible limits. If there are cracks on a disk, the disk is subject to replacement.
4. The indicator of hour type check a beating of a brake disk. Fix the indicator of hour type in any convenient place and, turning a brake disk, define its beating at distance of 10 mm from the outer edge.
5. Before check of a beating of a brake disk be convinced that the hug bearing is in good shape.
6. Check a brake disk for existence of cracks, especially around openings under bolts of fastening of a wheel, and also for existence of wear or mechanical damages and, if necessary, replace it.
7. Measure thickness of a brake disk.
Because on perimeter of a brake disk there is a step therefore at measurement of thickness of a brake disk with use of a caliper enclose two coins under caliper sponges. For determination of true thickness of a brake disk subtract thickness of two coins from indications of a caliper.


Most conveniently it is also precisely possible to measure thickness of a brake disk with use of a micrometer. Thickness of a brake disk needs to be measured in several points on a circle of a brake disk. It is necessary to take the smallest of the measured values for the true thickness of a brake disk, see rice. Place of measurement (arrow) of thickness of a brake disk).

8. In the presence of scratches or cracks more than 0,5 mm in depth the brake disk needs to be replaced.