Mercedes S-class W202

1993-2000 of release

Repair and car operation



Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
- 3. Engines
   3.1.2. Identification number
   + 3.1.3. The engine
   3.1.4. Cars with the conditioner
   3.1.5. The bottom cover of a motor compartment
   3.1.6. Covers of cast apertures
   3.1.7. Натяжитель chains
   + 3.1.8. A cover of a head of the block of cylinders
   + 3.1.9. A head of the block of cylinders
   + 3.1.10. Camshafts
   3.1.11. Hydraulic тарельчатые pushers
   3.1.12. Maslootrazhatelnye caps
   3.1.13. Valves
   3.1.14. Directing valves
   3.1.15. Saddles of valves in a head of the block of cylinders
   3.1.16. A compression
   + 3.1.17. A klinovyj belt
   3.1.18. Diagnostics of malfunctions (DB)
   3.1.19. Broad-brush observations
   3.1.20. Repair work without engine dismantle
   + 3.1.21. Engine major repairs
   + 3.2. The diesel engine (ДД)
   3.2.3. Cars with the conditioner
   3.2.4. The bottom cover of a motor compartment
   3.2.5. Covers of cast apertures
   3.2.6. Натяжитель chains
   + 3.2.7. A camshaft
   + 3.2.8. A head of the block of cylinders
   + 3.2.9. Maslootrazhatelnye caps
   3.2.10. A cover of a head of the block of cylinders (2,2/2,5)
   3.2.11. Hydraulic тарельчатые pushers
   3.2.12. Valves
   3.2.13. Directing valves
   3.2.14. Saddles of valves in a head of the block of cylinders
   3.2.15. A head of the block of cylinders and the motor block
   3.2.16. A compression
   3.2.17. Клиновой a ridge belt
   3.2.18. The pulling device клинового a ridge belt
   3.2.19. Diagnostics of malfunctions (ДД)
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
+ 11. A steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes











3.1.7. Натяжитель chains
THE GENERAL DATA

The prevention

If натяжитель it is weakened on шестиграннике it should be removed, differently at screwing up the operating chain will be unduly tightened.


Removal

THE 4-CYLINDER ENGINE


PERFORMANCE ORDER
1. Remove hydraulic муфту the fan.
2. Uncover heads of the block of cylinders.
3. Remove a fan casing.
4. Establish the engine on 20 more low ВМТ ignitions of the first cylinder. For this purpose translate a transmission in position of idling and tighten a lay brake. Turn a cranked shaft by means of a wrench with nozzle SW27 at the central bolt of a belt pulley of a cranked shaft in a direction of rotation of the engine, i.e. Clockwise, before coincidence of marks. The length of a nozzle of a wrench should be more than 42 mm.
5. Insure a final cam-shaft from turn. For this purpose enter a suitable core (Mercedes-N 111589011500) into an aperture of a flange of a cam-shaft (78) through an aperture in a cover of the bearing of a cam-shaft. If the chain in the same way fix an inlet cam-shaft acts in film.

The prevention

If do not insert fixing pin (arrow), adjust a cam-shaft substantive provision.


6. Close the generator a film or a rag.

THE 6-CYLINDER ENGINE

PERFORMANCE ORDER
7. Remove клиновой a ridge belt.
8. If necessary ослабьте also remove the air pump from above натяжителя chains.

ALL ENGINES


PERFORMANCE ORDER
9. Ослабьте a screw stopper (1), having turned on one turn, using face key SW10.
10. Unscrew натяжитель chains in a complex with a detail (14) and remove.
11. Unscrew a screw stopper (1) with a sealing ring (5). Take a spring of compression (8) together with a pin (7).
12. Push out back press a finger (10) with фиксаторной a spring (9).
13. Details separately carefully clean fuel and check up on the further suitability to use (risks, a touch). The damaged details replace, in case of need in the complete set replace натяжитель chains.

Installation

PERFORMANCE ORDER
1. Fasten to the motor block the case натяжителя chains (14) with a new sealing ring (15). The moment of an inhaling for the 4-cylinder engine – 80 Н.м., for 6-cylinder – 50 Н.м.
2. Collect details (7–10) as before their dismantling, and insert in mounted натяжитель chains.
3. Twirl a screw stopper (1) with a new condensing ring (5) with the moment 40 Н.м., the spring is thus compressed.

THE 4-CYLINDER ENGINE
The prevention

Take stopping core from a cam-shaft flange.


PERFORMANCE ORDER
4. Establish a cover of a head of the block of cylinders.
5. Remove closing film from the generator.
6. Establish hydraulic муфту the fan.
7. Start the engine and check up tightness натяжителя chains.

THE 6-CYLINDER ENGINE

PERFORMANCE ORDER
4. Fix the air pump.
5. Put on клиновой a ridge belt.
6. Start the engine and check up tightness натяжителя chains.