Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car

Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Diagnostics of malfunctions of onboard electric equipment - the general information
   Check of the electric motor of a screen wiper
   Check of the warmed back glass
   Replacement of glow lamps
   Electric safety locks
   Installation of electric and electronic devices
   Arrangement of the basic electric elements of system of electric equipment of a body of the car
   + Schematic diagrams of electric equipment


Electric safety locks

Apply only the safety locks tested and allowed by MB on the required current!

Do not repair the fused safety locks and do not establish a crossing point - establish the burn-out reason.


1. Most of consumers of the electric power of your car is protected by fuses. Separate components of system of lighting, except for braking signal lamps, are protected by electronic elements.
2. At course of too strong current electronic interruption of an electric chain of the components protected by electronic elements is made. Through short time the electric chain automatically again becomes isolated at repeated emergence of malfunction the electric chain is interrupted again.
3. Use only the fuses tested and allowed by us with the ordered current.
4. Do not repair the fused fuses and do not shunt a crossing point, - establish the burn-out reason.
5. Reviews of safety locks, spare safety locks and devices for removal of safety locks together with a set of the onboard tool are in an additional compartment under a trunk floor (see the Head the Operation manual).

6. For ensuring access to safety locks of the main assembly block raise the handle (1) in the direction of an arrow and uncover.
7. The additional assembly block of safety locks (safety locks of system of locks and the anticreeping alarm system) is in the luggage compartment under the right cover.
8. Turn the handle (2) and open a cover of the additional assembly block.
9. The device for removal of safety locks is included in the package of the onboard tool.
10. The scheme of an arrangement of safety locks in assembly blocks is provided in Specifications. The most exact information is placed on inside of a cover of the assembly block.