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
   Problems of the block of electronic control and operating signals
   Search of malfunctions - the general information
   Removal and AT installation with the hydrotransformer
   The AT electrohydraulic control unit (AT is established)
   Dismantling and assembly of the electrohydraulic control unit
   Dismantling and assembly of a plate of gear shifting
   Case of transmission and hydrotransformer
   Multidisk brakes В2, VZ and a blocking gear wheel at "Parking"
   Dismantling and assembly of a back hollow shaft with the back coupling of a free wheeling
   Removal and installation of multidisk brake В1 and oil pump
   Dismantling and assembly of the oil pump
   Dismantling and assembly of multidisk brake В1
   Dismantling and assembly of multidisk brake В2
   Dismantling and assembly of a target shaft with the central and back block of planetary gear wheels
   Removal and installation of multidisk couplings К1, К2 and К3
   Dismantling and assembly of coupling К1
   Dismantling and assembly of a leading shaft with coupling К2 and the forward block of planetary gear wheels
   Dismantling and assembly of coupling К3
   The blocking mechanism at "parking"
   Removal and installation of the lever of the selector of gear shifting
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Cхемы

Search of malfunctions - the general information

At failure detection of automatic transmission first of all check level of working liquid (address to the Section Check of level of oil of automatic transmission). If level insufficient, check all epiploons. Attentively examine all hoses concerning transmission liquid, and also a cooler and to be convinced of lack of traces of leaks. The only thing that you still can independently make — it to check and, if necessary, to replace the sensors concerning work of a box (temperature and turns). Before replacing any sensor, carry out reading of codes of malfunctions from memory of the control unit.

At rather serious breakage the control system of a box will pass to a mode of safe functioning, bringing thus the corresponding code (or codes) in memory of the control unit. It is possible to consider codes by means of the special equipment.

In the absence of that, define the malfunction nature (electric or mechanical).

Do not try to remove a box as diagnostics is carried out only on the box established on the engine.