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
+ Cooling system and heating
+ Power supply system and release
- Engine electric equipment
   - System of ignition and engine management
      Removal and installation of coils of ignition
      Checks of a control system of ignition and injection
      Search of malfunctions - the general information and preliminary checks
      Check and adjustment of a corner of an advancing of ignition
      Spark plugs
   + System of preheat of the diesel engine
   + Diagnostics of systems of electronic control and diagnostic equipment
   + Systems of a charge and start
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Removal and installation of coils of ignition

4-cylinder petrol engine

Removal of coils of ignition of the 6-cylinder petrol engine is described in the Section Check and replacement of spark plugs. Check of a condition of high-voltage wires.



1. Engine 111: Disconnect a cover of coils of ignition (1).

2. Engine 271: Remove the top cover of the engine (1).

3. Disunite the socket (2) coils of ignition (3).

4. Turn out 2 bolts of fastening (4) coils of ignition by means of a key of Torx of 8 mm.

5. Remove vertically up the ignition coil. At the same time disunite the socket from a spark plug.

6. Similarly remove all coils of ignition.


Installation is carried out in the sequence, the return to removal. Fix ignition coils by the moment of 9 Nanometers.