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






15.3. System of ignition of TFZ

GENERAL INFORMATION

The system of ignition of TFZ works by the same principle, as system of ignition of EZL, but with the following differences.

In system of ignition of TFZ the moment of ignition is defined by the sensor established in the distributor of ignition. Such design gives the chance to establish an initial corner of an advancing of ignition by turn of the case of the distributor of ignition concerning a distributor shaft.

At operation of the engine the corner of an advancing of ignition partially copes the electronic device, and partially vacuum regulator established on the distributor of ignition. The electronic control device increases a corner of an advancing of ignition with increase in turns of the engine, and a vacuum regulator - with increase in loading.

On models with the carburetor at engine warming up the thermoswitch and the control valve change a corner of an advancing of ignition via the block of vacuum correction.