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 Unattended storage batteries Check of the storage battery Self-category of the storage battery Charging of the storage battery Storage of the storage battery Diagnostics of malfunctions of the storage battery
   + 14.1.8. Generator
   + 14.1.9. 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

b47c026d b47c026d Diagnostics of malfunctions of the storage battery


Too low level of electrolit
Recharge. Evaporation (especially in the summer) Add the distilled water to the ordered level (for the charged battery room of the battery).
The electrolit acts from a ventilating cover
Too high charge voltage Check a tension regulator, if necessary replace it.
Too high level of electrolit Suck away superfluous quantity of electrolit densimetry with a pipette.
Too low density of electrolit
Electrolit density in one cell it is accurate below, than in other cells Short circuit in a cell. Replace or restore the storage battery.
Electrolit density in two next cells it is obvious below, than in other cells The partition is not tight, there is a carrying-out connection between cells owing to what cells are discharged. Restore the storage battery.
The storage battery is discharged Charge the storage battery.
The generator is faulty Check the generator, if necessary repair or replace.
Short circuit in an electric network Check electric system.
The electrolit is diluted with water owing to a mistake at accumulator maintenance Modify electrolit structure.
Too high density of electrolit
The electrolit was added Modify electrolit structure.
Too low set capacity, falls tension
The storage battery is discharged Recharge the storage battery.
Too low voltage of a charging Check a tension regulator, if necessary replace it.
Connecting plugs are weakened or oxidized Clear connecting plugs and slightly grease, especially bottom party, acidproof protective greasing, tighten fastening screws.
Bad connections on the case of the storage battery – the body engine Check connections (plug) on the case, if necessary restore metal connections or hardly tighten screw connections.
Too big self-category of the storage battery because of electrolit pollution Replace the storage battery.
Probably, просульфатированы plates of the storage battery (a gray-white raid on positive and negative plates) Charge the storage battery a small current slowly to clean a raid. If after a repeated charging and a discharge the set capacity remains too low, replace the battery.
The battery plate is worn-out, the active mass of plates fell off Replace the storage battery.
Insufficient charge at the storage battery
Malfunction in the generator, a regulator of a tension or linear connections Check the generator and a tension regulator, repair or replace; fix normally wires.
The belt is weakened maple Tighten or replace maple a belt.
Too many consumers of a current are connected Establish more powerful storage battery; probably, apply also more powerful generator.