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
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Removal and installation of a cover of an impellent compartment from the bottom
   + 4-cylinder petrol engines
   + 6-cylinder petrol engines
   - Diesel engines
      Removal and installation of the top cover of the engine
      Installation of the piston of the first cylinder in situation VMT
      Removal and installation of a cover of a head of cylinders
      Removal and installation of a head of cylinders
      Removal and installation of a forward cover
      Removal and installation of the top directing chain
      Replacement of chains of a drive of GRM and installation of phases of a gazoraspredeleniye
      Removal and installation of camshafts
      Removal and installation of an intermediate asterisk
      Removal and installation of a natyazhitel of a chain
      Removal and installation of a maple belt
   + System of greasing of the engine
+ cooling and heating Systems
+ 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







Replacement of chains of a drive of GRM and installation of phases of a gazoraspredeleniye

Scheme of a chain drive of the gas-distributing mechanism (GRM) and stages of procedure of installation of phases of a gazoraspredeleniye (The diesel engine of 3.2 l)




Special tools:

Core for camshaft fixing - No. 111589031500.
The adaptation for flywheel fixing / a driving disk (a transmission dome) - No. 601589024000.
Bolts of fastening of the adaptation for flywheel fixing / a driving disk (on a transmission dome) - М6 x 90 mm.
The adaptation for flywheel fixing / a driving disk (an opening under starter installation) - No. 602589004000.
Set for division of links of a gas-distributing chain - No. 602589024000.
Divider of links of a gas-distributing chain (element 1) - No. 602589023300.
Divider of links of a gas-distributing chain (element 2) - No. 602589046300.
Divider of links of a gas-distributing chain (element 3) - No. 602589046301.
The adaptation for joining of links of a chain - No. 602589003900.
Set of 1 dies for joining of links of a chain - No. 103589026300.
Set of 2 dies for joining of links of a chain - No. 103589036300.
Set of 3 dies for joining of links of a chain - No. 103589096300.
Tool box - No. 602589009800.

General measures of precaution

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.
2. Turn out glow plugs for the purpose of simplification of a provorachivaniye of the engine.
3. If the return is not stipulated especially, turn the engine in the normal direction.
4. Familiarize with the requirements shown to efforts of a tightening of carving connections.
5. At the corresponding complete set mark position of the CKP sensor before its removal.
6. Do not turn a cranked shaft by means of driving asterisks of a camshaft or devices.
7. Do not turn cranked and distributive shaft at the removed chain of a drive of GRM.
8. After installation of phases of a gazoraspredeleniye make TNVD check.


Procedures of installation of phases of a gazoraspredeleniye

 PERFORMANCE ORDER

Replacement of a gas-distributing chain can be made without engine dismantle. Use special tools from given above the list. The new chain can be connected to old, is thrown an asterisk and then joined.

1. Bring the piston of the first cylinder [1] into situation VMT.
2. Pass a blocking core in an asterisk of an inlet camshaft [2].
3. Make sure of correctness of combination of adjusting labels of camshafts [3] and [4].
4. Before starting performance of repair procedures, remove assembly of a natyazhitel [5].

Bolts of fastening of asterisks of camshafts are not subject to [6] reuse and should be replaced with the new.

5. On termination of repair work establish a natyazhitel [5].

Effort of a tightening of fixture of a natyazhitel 80Нм.
Effort of a tightening of a bolt of a pulley of a cranked shaft [7]:
Bolt of classification 8.8 — 200Нм + 90 °;
Bolt of classification 10.9 — 325Нм + 90 °.