Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car

+ Mercedes-Benz cars of class C (W-203)
+ Operation manual
+ Routine maintenance
- Engine
   Check of a compression in engine cylinders
   Check of the engine by means of the vacuum gage
   Removal and installation of a cover of a motive compartment from the bottom
   + 4-cylinder petrol engines
   - 6-cylinder petrol engines
      Removal and installation of a head of cylinders
      Replacement of chains of the GRM drive and installation of phases of gas distribution
      Removal and installation of a maple belt
   + Diesel engines
   + Engine lubrication system
+ Cooling system and 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

Removal and installation of a maple belt

Scheme of laying of a maple belt. Engine 112
1 — the Bent shaft
2 — the Rejecting roller 1 or the compressor
3 — the Pump of the hydraulic booster
4 — the Rejecting roller 2
5 — the Generator
6 — the Pump of cooling liquid
7 — the Tension roller



1. Weaken a tension of a maple belt.
2. Execution 1: Put Torx key on the central screw of a tension roller.
3. Execution 2: Put a wrench on a hexagon from above of a tension roller.
4. Incline the tension device counterclockwise and record a drift or a lock finger with a diameter of 5 mm. For this purpose implant a lock finger through an opening in the tension device.



1. Put on maple a belt, since a tension roller. Further put on a belt according to the numbering given on the drawing.
2. Turn a tension roller counterclockwise a little and take out a lock finger. Then slowly turn a tension roller clockwise, watching correctness of provision of a belt on pulleys.