Mercedes of the S-class W202

1993-2000 of release

Repair and operation of the car



Mercedes W202
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Lubrication system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. System of ignition
+ 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. Technology of measurements
   14.1.4. Checks of electric equipment
   14.1.5. Sound signal
   14.1.6. Replacements of safety locks
   + 14.1.7. Rechargeable battery
   + 14.1.8. Generator
   + 14.1.9. Starter
   14.1.10. Traction relay
   + 14.1.11. System of lighting
   14.1.12. Devices
   14.1.13. Dashboard
   14.1.14. Glow lamps on the dashboard
   14.1.15. Light switch
   14.1.16. Radio receiver
   + 14.1.17. Antenna
   14.1.18. Loudspeakers
   + 14.1.19. Rubber brushes of screen wipers
   14.1.20. Windscreen washer jets
   14.1.21. The 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. Galogenka
+ 14.2. Electrical circuitries





14.1.6. Replacements of safety locks

GENERAL INFORMATION

To avoid the damages connected with short circuits and overloads in lines and consumers of electric system, separate electric chains are protected by fuses. Safety locks with knife contacts so usual (traditional) safety locks can be not applied any more are applied.

Safety locks mainly are placed in one block of safety locks and the relay which is at the left behind in a motor compartment.

The second block of safety locks is in a luggage carrier in front of the rechargeable battery. Before replacement of a safety lock every time at first disconnect the corresponding consumer.

PERFORMANCE ORDER
1. Uncover the block of safety locks.
2. The fused safety lock is determined by the metal strips melted on walls. Safety locks of two modifications are built in: "and" – from 7, 5 to 30 A, "in" – 30 and 40 And.
3. Take a faulty safety lock. For extraction of safety locks use the plastic tweezers which are in a set of the tool attached to the car.
4. Insert the new safety lock calculated on the same current. The rated current is beaten out on the boss of a safety lock. Besides, the boss at safety locks "and" has distinctive coloring by which it is also possible to determine rated current (See the table).
5. Again cover protective the block of safety locks.
6. If again inserted safety lock later short time fuses again, it is necessary to check the corresponding electric chain.
7. Do not replace a safety lock at all with a wire or similar auxiliary material because it can cause serious damages to electric system.
8. We recommend to have constantly in the car several spare safety locks. For their preservation in the main unit of safety locks there are several holders.
9. Instruction: location of safety locks depends on equipment and year of release of the car, actual position of safety locks is given on a cover of the block of safety locks and in the operation manual.


NOMINAL CURRENT IN AMPERES
DISTINCTIVE COLOURING OF THE STANDARD SAFETY LOCK
10
red
15
blue
20
yellow
30
green

Relay positions

Relays are installed in the block of safety locks and the relay in a motor compartment.

Alphabetic index of the relay / actuation device


And
KZ/1
Partial (partial) preliminary heating of the inlet gas pipeline (PSV)
In
K20
Preliminary supercharger
æ/D
K9
Additional fan
Е
K2
Devices for cleaning of the lens of headlights (a faroochistitel or a faroomyvatel)
F
K39
Headlights
G
N
K17
Forcings of air (pressurization)
To
N10
The combined relay (blinking), light-signal device, heating
Back glass
Cleaner engine etc.
N10/2
The combined relay (the blinking light-signal device with the towing device, the heated back glass, the screen wiper engine)
L
N7
Device of control of lamps