Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
- 7. Major maintenance of engines
   7.2. General information
   7.3. Recommendations about engine removal
   7.4. Removal and installation of 4-cylinder petrol engines
   7.5. Removal and installation of 6-cylinder petrol engines
   7.6. Removal and installation of diesel engines
   7.7. Sequence of dismantling of the engine
   + 7.8. Analysis of a head of the block of cylinders
   + 7.9. Assembly of a head of the block of cylinders
   7.10. Removal of pistons with rods
   7.11. Removal of a cranked shaft
   7.12. Block of cylinders of the engine
   7.13. Pistons and rods
   7.14. Cranked shaft
   7.15. Survey of radical and shatunny bearings
   7.16. Engine balance of assembly at major maintenance
   7.17. Installation of piston rings
   7.18. Installation of a cranked shaft
   7.19. Check of a working gap of radical bearings
   7.20. Installation of a cranked shaft
   + 7.21. Installation of pistons with rods
   7.22. Engine start after major maintenance
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






7.22. Engine start after major maintenance

GENERAL INFORMATION

On the engine established in a motor compartment of the car check levels of engine oil and cooling liquid. Check that all earlier removed wires and hoses are established on the places.

PETROL ENGINES

PERFORMANCE ORDER
1. Unscrew spark plugs, disconnect the electric socket from the block of ignition and remove the relay of the fuel pump.
2. Turn the engine a starter until the control lamp of pressure of oil will not go out, then connect the electric socket to the ignition block, establish the relay of the fuel pump, screw in spark plugs and connect to them high-voltage wires.

DIESEL ENGINES

PERFORMANCE ORDER
1. Disconnect the electric socket from the electromagnetic valve of a stop of the engine on the fuel pump of a high pressure.
2. Turn the engine a starter until the control lamp of pressure of oil will not go out, then connect the electric socket to the electromagnetic valve of a stop of the engine.
3. Press against the stop an accelerator pedal, turn a key in the ignition lock in situation 2 and wait, the control bulb of preliminary warming up of candles of an incandescence will not go out yet.

ALL ENGINES

PERFORMANCE ORDER
1. Start the engine. Start of the engine can be more long, than usually because of shutdown of fuel system.
2. At operation of the engine idling check existence of leakages of the fuel, cooling liquid and oil. At this stage of operation of the engine the smell and a smoke from warm parts of the engine can be observed at burning out of the oil which has got on the engine at assembly.
3. The engine should idle, while cooling liquid will not heat up that will be felt through the top hose of a radiator, then switch off the engine.
4. After cooling of the engine check level of oil and cooling liquid.
5. At installation in the engine of new pistons, piston rings or bearings of a cranked shaft it is necessary to make an engine running in during run of the first 800 km. Do not maintain the engine with completely open butterfly valve or under big loading at low frequency of rotation of the engine. It is recommended to replace oil and the oil filter at the end of the running in period.