BMW 3 of the E46 series

since 1998 release

Repair and operation of the car



BMW 3 of the E46 series
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply systems, injection and release
+ Electric equipment of the engine
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Removal and installation of brake shoes of forward wheels
   Removal and installation directing a forward brake
   Removal and installation of a brake disk of a forward wheel
   Removal and installation of brake shoes of disk brakes
   Removal and installation of a bracket of a brake of back wheels
   Removal and installation of a brake disk of a back wheel
   Measurement of thickness of a brake disk
   Brake fluid - the main data and security measures
   Removal of air from brake system
   Replacement of the brake pipeline
   Replacement of a forward brake hose
   Check of the amplifier of a brake
   Removal and installation of blocks of the parking brake
   Adjustment of the parking brake
   Removal and installation of the lever of the parking brake
   Removal and installation of a cable of the drive of the parking brake
   Removal and installation of the switch of a stoplight
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment



Check of the amplifier of a brake

Check operation of the amplifier of a brake if for achievement of necessary braking it is required to put excessively big effort to a brake pedal.

1 At the idle engine press a brake pedal not less than 10 times, then at the pressed pedal start the engine. Now the pedal of a brake has to move noticeably. In this case the amplifier is serviceable.
2 Otherwise disconnect a vacuum hose at the amplifier and start the engine. Apply a finger to the end of a hose and check, whether there is a vacuum.
3 If the vacuum is not present: Check a vacuum hose for tightness and existence of damages, if necessary replace it. Tighten fastening of all collars.
4 Diesel engine: Disconnect a vacuum hose from the vacuum pump and check a finger, whether there is a vacuum. The vacuum pump is fixed to a head of cylinders.
5 If the vacuum is available: Measure value of vacuum, if necessary replace the amplifier of a brake (work HUNDRED).

At the petrol engine surely replace also backpressure valve in the vacuum pipeline as the diaphragm in the amplifier of a brake at the faulty backpressure valve owing to the getting vapors of fuel can be damaged.