Mercedes S-Class W-220

since 1998 of release

Repair and car operation



W220 Mercedes
+ Mercedes-Benz Cars of a class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Specifications
   Diagnostics of malfunctions of onboard electric equipment - the general information
   Check of the electric motor of a screen wiper
   Check of warmed back glass
   Replacement of filament lamps
   Function of reserve light
   Electric safety locks
   Installation of electric and electronic devices
   Elements of the uniform lock
   Arrangement of the basic electric elements of system of electric equipment of a body of the car
   Anticreeping alarm system
+ electric equipment Cхемы






Onboard electric equipment

General information

Cars of this brand are equipped 12 In electric equipment system with grounding on a negative pole. A food of all lighting devices and electric units is carried out from the battery of lead-acid type recharged from the generator of an alternating current.

This Head is devoted to the description of procedures of service and repair of some a component of system of onboard electric equipment to which number all lighting devices and the electric accessories not connected directly with the engine belong except concrete considered below also. Besides, procedures of diagnostics of malfunctions of electric equipment of the general order are considered. Information on the battery, the generator and a starter is provided in Head Electric equipment of the engine of the Management.

 Attention! At performance of any works on repair and service a component of system of electric equipment it is necessary to disconnect previously without fail a weight cable from the battery in order to avoid receiving an electrotrauma and/or ignition.