Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car



Mercedes-Benz
+ 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
+ Manual transmission
+ Automatic transmission
- Coupling and power shafts
   + Coupling
   + Driveshaft
   - Power shafts of wheels
      Removal and installation of power shafts of wheels
      Dismantling of power shafts and replacement of protective covers
   + Differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment







Removal and installation of power shafts of wheels

At damage external, located from a wheel, the hinge of equal angular speeds the corresponding shaft has to be replaced completely.


Removal

 PERFORMANCE ORDER

1. Tighten the parking brake.

 At an otvorachivaniye of a nut of fastening of a wheel the car has to stand wheels on the earth. Include transfer, tighten a brake. Big moment of an otvorachivaniye. There is a danger of accident!


2. Unbend the screw-driver a fillet of a nut of fastening of a wheel from a shaft groove. Turn off a nut a dodecahedral head.

3. Release the parking brake.
4. Mark with paint the provision of back wheels concerning a nave. It will allow to establish at assembly the balanced wheels in their former situation. Weaken bolts of fastening of wheels before a car poddomkrachivaniye. Lift a back part of the car, put it on supports and remove back wheels.
5. Disconnect a back support and fix it by a wire to a body, address the Section Removal and installation of a back support.

Do not disconnect a brake hose. Otherwise after installation it is necessary to delete air from the brake system.

6. Remove the connecting bar going to the stabilizer.
7. Disconnect the speed sensor from a fist.
8. Disconnect steering draft from a fist.
9. Cast away a fist outside and at the same time squeeze out a power shaft from a flange.

At the same time do not draw a brake cable. Do not damage protective covers and a gear ring of the RPM meter.

10. Cast away a fist back and fix by a wire.

11. If the power shaft densely sits in a flange, squeeze out it a usual stripper.

Unlike represented on an accompanying illustration a support it is removed.


Power shaft of execution 1

 PERFORMANCE ORDER

1. Take out a power shaft (1) with the internal hinge (2) from the main transfer (3).

At the same time do not damage a sealing ring in the main transfer.


If necessary disconnect a power shaft blows of the hammer to an external ring of the hinge and by means of the corresponding drift.

2. Visually check damages of a cuff to the main transfer, if necessary replace.

For this purpose squeeze out the screw-driver a cuff. Before installation oil a working edge of a cuff universal for gipoidny transfers of SAE 85W-90. Press a cuff by means of the corresponding drift.


Power shaft of execution 2

 PERFORMANCE ORDER

1. Turn out 6 screws of fastening Torx and disconnect a power shaft (1) from a connecting flange (2). (3) – main transfer.

You monitor the correct provision of a face head in Torx screw head. If necessary clear a Torx screw profile.

2. Shift a power shaft, then incline down and remove.

You watch that at removal of a shaft the locking cover was not removed.

3. Check a protective cover and a locking cover for tightness and existence of damages, if necessary repair.

At the removed power shaft the car should not stand on wheels with full loading and should not move since in the absence of an axial tightness bodies of swing of the bearing of a wheel can be injured.


Installation

 PERFORMANCE ORDER

If at removal of a power shaft application of the big effort necessary for expression of a nave of a wheel is demanded it is recommended to cut a female thread of M8 of 20 mm in depth on the end of a shaft. It is possible to screw the tool for dismantle in this opening. Depending on execution of a power shaft in it there can be an opening with a diameter of 6.8 mm that corresponds to the internal diameter of a carving of M8. Before installation clear a profile of shlits of the lubricant remains.

Power shaft of execution 1: Insert a shaft into the main transfer so that the lock ring was distinctly recorded.

At the same time install horizontally the hinge case not to warp shlitsevy a shaft at installation. The case of the hinge has to be located densely to a case of the main transfer.


Power shaft of execution 2

 PERFORMANCE ORDER

1. Clear a surface between a connecting flange and a locking cover.
2. Establish a shaft at a connecting flange.
3. Slightly grease a carving and a basic surface of a head of new Torx screws.
4. Establish a new washer and screw Torx screws. Tighten screws cross-wise the moment of 70 Nanometers.
5. Fix by the new self-stopped nuts steering draft and bars.

At an inhaling of nuts the power shaft needs to be given to horizontal position. For this purpose it is necessary to raise the holder of a wheel a jack.
The moments of an inhaling are given in Specifications.

6. Fix the speed sensor at a fist by the moment of 8 Nanometers.
7. Insert connecting draft of the stabilizer and fix by its moment 40 Nanometers.
8. Establish a support and fix by its moment 55 Nanometers, address the Section Removal and installation of a back support.
9. Establish into place back wheels so that the marks put at removal coincided. Previously grease with a thin layer of bearing lubricant the aligning wheel disk belt on a nave. Do not grease bolts of fastening of a wheel. Replace rusty bolts. Wrap bolts. Lower the car on wheels and tighten bolts cross-wise the moment of 110 Nanometers.
10. Tighten the parking brake.
11. Screw a new dodecahedral nut with a fillet and tighten the moment 220 Nanometers.

At the same time the car has to stand wheels on the earth. The nut needs to be replaced with new surely. At an inhaling include transfer and tighten the parking brake.


12. Record a nut for what hammer with a drift a fillet into a groove so that between a groove and a fillet there was no gap.

13. Release the parking brake.
14. Check oil level in the main transfer.