S-class W202 Mercedes

1993-2000 of release

Repair and car operation

W202 Mercedes
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 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
   14.1.2. Measuring devices
   14.1.3. Equipment of measurements
   14.1.4. Electric equipment checks
   14.1.5. Sound signal
   14.1.6. Replacements of safety locks
   + 14.1.7. Storage battery
   + 14.1.8. Generator
   - 14.1.9. Starter
      14.1.9.1. Diagnostics of malfunctions of a starter
   14.1.10. Traction relay
   + 14.1.11. Lighting system
   14.1.12. Devices
   14.1.13. Dashboard
   14.1.14. Filament lamps on the dashboard
   14.1.15. Light switch
   14.1.16. Radio receiver
   + 14.1.17. Aerial
   14.1.18. Loudspeakers
   + 14.1.19. Rubber brushes of screen wipers
   14.1.20. Jets of a stekloomyvatel
   14.1.21. Washing nozzles of headlights
   14.1.22. 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. "Galogenki"
+ 14.2. Electroschemes

14.1.9.1. Diagnostics of malfunctions of a starter

GENERAL INFORMATION

If the starter is not turned, first of all, check, whether there are on the plug 50 traction relays tension necessary for retraction – not less 8В. If the specified tension arrives, it is necessary to check according to the electroscheme of the line which belong to an electric chain of a starter. Whether the starter in the presence of full tension of the storage battery is involved, it is possible to check as follows:

– do not include any transfer, include ignition;
– зашунтируйте a wire (cross-section section not less than 4 ^mm2) plugs 30 and 50 on a starter, see also electroscheme Electric equipment – a starter, the generator, the accumulator (a DB of 111 HFM/PMS).

If thus the starter is normally started, malfunction consists in the wires going to a starter. In this case check a starter in the removed condition.

Check condition: it is necessary to screw down connections, and they should not be oxidized.

REASON	WAY OF ELIMINATION
The starter does not rotate when actuating the switch of ignition and a starter
The storage battery is discharged	Charge the storage battery.
The line 50 going to the switch of ignition and a starter is broken off, the starter switch is faulty	Eliminate a gap, replace faulty details.
The wire or connection on the case is broken off; the storage battery is discharged	Check wires of the storage battery and connection, measure tension of the storage battery, if necessary charge it.
Insufficient passing of a current owing to the loosened or oxidized connections	Clear poles and plugs of the storage battery.
There is no tension on the plug 50 (the traction relay)	Restore the connections protected by safety locks between the storage battery, a starter and the car case.
The starter rotates too slowly and does not start the engine
The storage battery is discharged	Charge the storage battery.
In the engine there is no winter engine or all-weather oil	Fill in all-weather oil.
Insufficient passing of a current owing to the weakened or oxidized connections	Clear poles and plugs of the storage battery and clear connections on a starter, hardly tighten connections.
Coal brushes do not adjoin to a collector, plugs in the contact surfaces are worn-out, broken off, greasy or polluted	Check, clear or replace coal brushes, check contact surfaces.
Insufficient interval between coal brushes and a collector	Replace coal brushes and clear contact surfaces of coal brushes.
The collector is scratched or scorched and is polluted	Grind a collector or replace an anchor.
On the plug 50 there is no tension (at least 8 In)	Check the ignition and starter switch or the traction relay.
The traction relay is faulty	Replace the traction relay.
The starter is started and involved, the shaft of the engine does not rotate or rotates only pushes
Shesterenchaty transfer is faulty	Replace shesterenchaty transfer.
The gear wheel is polluted	Clear a gear wheel.
The gear rim on a flywheel is faulty	Finish a gear rim if it is required, replace a flywheel.
Shesterenchaty transfer does not work
Shesterenchaty transfer or abrupt carving are polluted or faulty	Clear shesterenchaty transfer, if necessary replace it.
The traction relay is faulty	Replace the traction relay.
The returnable spring is weakened or broken off	Restore a returnable spring.
The starter continues to work after the ignition key was switched off
The traction relay hangs, is not disconnected	Immediately switch off ignition, replace the traction relay.
The lock switch of ignition and devices is not disconnected	Immediately disconnect wires from plugs of the storage battery, replace the lock switch of ignition and devices