Mercedes S-class W202

1993-2000 of release

Repair and car operation

Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
+ 3. Engines
+ 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
   14.1.2. Measuring devices
   14.1.3. Technics of measurements
   14.1.4. Electric equipment checks
   14.1.5. A sound signal
   14.1.6. Replacements of safety locks
   + 14.1.7. The storage battery
   + 14.1.8. The generator
   + 14.1.9. A starter
   14.1.10. The traction relay
   + 14.1.11. Illumination system
   14.1.12. Devices
   14.1.13. The instrument panel
   14.1.14. Lamps накаливания on the panel of devices
   14.1.15. Light switch
   14.1.16. A radio receiver
   + 14.1.17. The aerial
   14.1.18. Dynamics
   + 14.1.19. Rubber brushes of screen wipers
   14.1.20. Jets стеклоомывателя
   14.1.21. Washing atomizers of headlights
   14.1.22. A screen wiper and its engine
   14.1.23. Protect the car
   14.1.24. Anticreeping "immunodeficiency"
   14.1.25. Why headlights grow dull
   14.1.26. "Галогенки"
+ 14.2. Electroschemes

14.1.10. The traction relay

At malfunction of the traction relay the gear wheel in a starter is not drawn to a gear rim of a flywheel. Because of it the starter cannot turn an engine shaft. This defect meets more often, than the engine of a starter fails.

Check in the established condition

1. Switch off transfer, establish the gear change lever in neutral position.
2. Quickly зашунтируйте an auxiliary wire on a starter the plug 30 (a thick positive wire) and the plug 50 (the thin wire going to the lock-switch of ignition and devices), a gear wheel of a drive of a starter should move quickly forward and put in action a starter. If it does not occur, unscrew a starter and replace the relay.


1. Remove a starter and repeat its check in the removed position with use of the storage battery. As a bringing line 50 starters approach to the plug a wire for starter connection to auxiliary (out of the car) to the storage battery. If the gear wheel quickly moves forward, without starting a starter, repair a starter in a repair truck.
2. If the gear wheel does not move quickly forward, unscrew and replace the traction relay.


1. Загерметизируйте a dividing seam (F) a suitable sealing material.
2. Suspend the traction relay on вильчатый the lever in a starter, then screw the traction relay.
3. Screw a wire going to the traction relay.
4. Again check up a starter as it is described above.
5. Establish a starter.