Mercedes S-Class W-220

since 1998 release

Repair and operation of the car

Mercedes W220
+ Mercedes-Benz cars of the class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ Power supply system and release
+ Engine electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
- Body
   Security measures when carrying out body works
   Cleaning and care of the car
   Repair of insignificant damages of body panels
   Repair of considerable damages of a body
   Replacement of brushes of screen wipers
   Orthopedic seats
   Heating of seats
   Replacement of the filter of purification of air of salon
   Sensors of electric systems
   Fire extinguishing system
+ Onboard electric equipment
+ Schemes of electric equipment

Heating of seats

Heating of front seats

Heating of front seats can be carried out in two modes. It can be operated one of two switches of control units of the left or right forward door (N69/1)/(N69/2). Indication of the mode of heating is carried out by means of two (three) light-emitting diodes. located over switches. Heating is made by rectangular impulses of tension (20 - 30 Hz). Porosity in the mode 1 makes 3.7, and in the mode 2 - 1 (address the Section Application of an Oscillograph for observation of signals in chains of control systems). Switching off is made manually or the corresponding control unit (through certain time).

Heating back seats

Heating of back seats is carried out identically heating of front seats.