Mercedes C-Class

W203 since 2000 of release

Repair and car operation


Mercedes-Benz
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Specifications
   Replacement of blocks of a forward disk brake
   Removal and installation of a forward support
   Replacement of back brake shoes
   Removal and installation of a back support
   Removal and installation of a brake disk
   Check of a brake disk
   Dual main brake cylinder
   Replacement of brake shoes of the parking brake
   Removal and installation of a cable of a drive of the parking brake
   Removal and installation of the switch of a stoplight
   Air removal from brake system
   Removal and installation of a brake hose
   Check of the amplifier of a brake
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





Check of the amplifier of a brake

1 — the Vacuum hose
2 — the Brake pipeline 		3 — the Main brake cylinder
4 — the Tank of brake liquid

Pressure of a foot of the driver upon a pedal of a brake amplifies by means of the amplifier of a brake at the expense of use of the vacuum arising in the inlet pipeline of the engine. At the diesel engine the vacuum necessary for this purpose is created by the vacuum pump, fixed on an engine flange. Operation of the amplifier of a brake is necessary for checking, if braking of the car needs excessively big effort enclosed to a pedal of a brake.

 PERFORMANCE ORDER

1. Press a brake pedal at the idle car not less than five times. Then at the pressed pedal start the engine. The pedal thus should move noticeably under a foot of the driver.
2. Otherwise open a cowl and uncover the party of the driver over the amplifier of a brake. The amplifier of a brake is located in an impellent compartment directly on a partition.
3. Disconnect a vacuum hose (1) at the amplifier of a brake. Start the engine. Having put a finger by the end of a vacuum hose, check, whether there is a vacuum.
Diesel engine: Disconnect a vacuum hose from the vacuum pump and check vacuum in a point of accession of a hose.
4. If the vacuum is not present, check tightness of a hose and existence of its damages, if necessary replace a hose.
5. If the vacuum is available, measure its value, if necessary replace the amplifier (work HUNDRED).