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
+ 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
   15.2. System of ignition of EZL
   15.3. System of ignition of TFZ
   15.4. Check of system of ignition
   15.5. Ignition coil
   15.6. Ignition distributor
   15.7. Distributor rotor
   15.8. Corner of an advancing of ignition
   15.9. Elements of a control system of ignition
+ 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






15.9. Elements of a control system of ignition

SENSOR OF TURNS OF THE CRANKED SHAFT

Removal

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Disconnect the electric socket of the sensor of turns of the cranked shaft, located in a motor compartment behind the accumulator.
3. The sensor of turns of a cranked shaft is located between the block of cylinders of the engine and a coupling case over a starter. Unscrew a bolt and take the sensor from a coupling case. Remove laying.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal. Before installation of the sensor of turns of a cranked shaft establish on it new laying.

ELECTRONIC CONTROL DEVICE

Removal

Arrangement electronic a control control unit ignition on models with system of ignition of TSZ

PERFORMANCE ORDER
1. The electronic control control unit is located ignition on the left side of a motor compartment on the top part of an arch of a wheel (see drawing).
2. Remove a weight wire from the accumulator.
3. Mark and disconnect моногокон taktny electric sockets of the electronic control device of management I eat ignitions.
4. Disconnect a vacuum hose of an inlet collector from the control unit and close an opening a stopper.
5. Unscrew nuts and take the electronic control device from a motor compartment.
Prevention

For heat removal improvement from the electronic control device its bottom surface is covered with special heat-conducting paste.


Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal. If the layer of heat-conducting paste is polluted or hardened, get at the dealer of Mercedes-Benz fresh paste and replace it.

THE SENSOR OF TEMPERATURE OF COOLING LIQUID

Usually the system of ignition and system of injection of fuel have one general sensor of temperature of cooling liquid. Look subsections 9.10.1, 10.13.5.

SWITCH OF EXTREME PROVISIONS OF THE BUTTERFLY VALVE

The system of ignition and system of injection of fuel cope one general switch of extreme provisions of a butterfly valve. The switch of provision of a butterfly valve can be removed only on the removed case of a throttle. Installation of the switch is necessary for making only at service station.

THE SENSOR OF TEMPERATURE OF AIR ARRIVING IN THE ENGINE

Removal

PERFORMANCE ORDER
1. The sensor of temperature of air arriving in the engine is established sideways a casing of the air filter.
2. Check that ignition is switched off, then disconnect the electric socket from the sensor.
3. Turn the sensor on a quarter of a turn and remove it from a casing of the air filter. Remove laying.

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.

SENSOR OF THE TOP DEAD POINT

The sensor of the top dead point is established on an arm over a quencher of krutilny fluctuations from the forward party of the engine. Position of the sensor of the top dead point very important for installation of a corner of an advancing of ignition therefore replacement of the sensor of the top dead point is necessary for making at service station.