S-class W202 Mercedes

1993-2000 of release

Repair and car operation



W202 Mercedes
+ 1.2. General information
+ 2. Maintenance
- 3. Engines
   3.1.2. Identification number
   + 3.1.3. Engine
   3.1.4. Cars with the conditioner
   3.1.5. Bottom cover of a motor compartment
   3.1.6. Covers of cast openings
   3.1.7. Natyazhitel of a chain
   + 3.1.8. Cover of a head of the block of cylinders
   + 3.1.9. Head of the block of cylinders
   + 3.1.10. Camshafts
   3.1.11. Hydraulic tarelchaty 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. Compression
   + 3.1.17. Klinovy belt
   3.1.18. Diagnostics of malfunctions (DB)
   3.1.19. General comments
   3.1.20. Repair work without engine dismantle
   + 3.1.21. Major maintenance of the engine
   + 3.2. Diesel engine (DD)
   3.2.3. Cars with the conditioner
   3.2.4. Bottom cover of a motor compartment
   3.2.5. Covers of cast openings
   3.2.6. Natyazhitel of a chain
   + 3.2.7. Camshaft
   + 3.2.8. Head of the block of cylinders
   + 3.2.9. Maslootrazhatelnye caps
   3.2.10. Cover of a head of the block of cylinders (2,2/2,5 l)
   3.2.11. Hydraulic tarelchaty 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. Head of the block of cylinders and motor block
   3.2.16. Compression
   3.2.17. Maple ridge belt
   3.2.18. Tense device of a maple ridge belt
   3.2.19. Diagnostics of malfunctions (DD)
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electroschemes








b47c026d b47c026d


3.1.18. Diagnostics of malfunctions (DB)

GENERAL INFORMATION

If the engine is not started, it is necessary to define a cause of defect. That it in general could be started, two main preconditions should be carried out: the toplivovozdushny mix should reach the cylinder and between electrodes of candles should slip ignition sparks. Therefore, first of all, always check fuel access.

To define, whether there is an ignition spark, separately unscrew spark plugs, insert into the tip of spark plugs and hold opposite to "weight" of the motor block. Thus do not hold barehanded the tip of a candle or an ignition wire, and use well isolated pincers. Check "weight" contact. Ask the assistant to start the engine.


Prevention

To avoid catalyst damage, thus there should not be a gasoline injection.

Keep in mind instructions according to safety measures for electronic ignition and the injection device.


REASON
WAY OF ELIMINATION
The engine is badly started or not started in general
Error of service at start Press a coupling pedal, include ignition, without giving some gas. Turn a key in the lock of ignition and put in action a starter. As soon as the engine will be started, release a key. Surely at once move a little, and at a hard frost warm up the engine about 30 seconds. If the engine is not started after numerous attempts of start, despite separate ignitions, once again start with completely pressed pedal of an accelerator. Attention! Frequent ineffectual attempts of start one by one can harm to the catalyst since not burned down gasoline gets into the catalyst and burns down with explosion. At the hot engine during start press an accelerator pedal slowly.
The fuel system is faulty, polluted Check fuel system.
The injecting device is faulty Check the injection device according to diagnostics of malfunctions.
Too slowly the starter rotates Charge the storage battery. Check an electric chain of a starter.
Too low pressure of a compression Repair the engine.
Wrong phases of a gazoraspredeleniye, lengthening of a chain of management Check gazoraspredeleniye phases, replace a management chain.
Sealing laying of a head of the block of cylinders is faulty Replace condensing laying.