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
   Problems of the block of electronic control and the operating signals
   Search of malfunctions - the general information
   Removal and the 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 of V2, VZ and gear wheel of blocking at "Parking"
   Dismantling and assembly of a back hollow shaft with the back coupling of a free wheeling
   Removal and installation of a multidisk brake B1 and oil pump
   Dismantling and assembly of the oil pump
   Dismantling and assembly of a multidisk brake of B1
   Dismantling and assembly of a multidisk brake of B2
   Dismantling and assembly of an output shaft with the central and back block of planetary gear wheels
   Removal and installation of multidisk couplings K1, K2 and K3
   Dismantling and assembly of coupling of K1
   Dismantling and assembly of the leading shaft with coupling by K2 and the forward block of planetary gear wheels
   Dismantling and assembly of coupling of K3
   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
+ Schemes of electric equipment



Dismantling and assembly of the electrohydraulic control unit

16 — a gear shifting Plate
17 — Clamps
17a, 17b — Bolts
Y3/6 — the Electrohydraulic control unit
Y3/6/y1 — the Electromagnetic valve of adjustment of pressure of adjustment
Y3/6/y2 — the Electromagnetic valve of adjustment of pressure of gear shifting

Y3/6/y3 — the Electromagnetic valve of inclusion of 1-2 and 4-5 transfers
Y3/6/y4 — the Electromagnetic valve of inclusion of 3-4 transfers
Y3/6/y5 — the Electromagnetic valve of inclusion of 2-3 transfers
Y3/6/y6 — the Electromagnetic valve of blocking of the hydrotransformer


Dismantling

 PERFORMANCE ORDER

1. Uncover at the electrohydraulic control unit.
2. Turn off bolts 17a and 17b and remove clamps 17.
3. By means of flat-nose pliers, take all electromagnetic Y3/6/y1-Y3/6/y6 valves from a plate 16.
4. Remove the electrohydraulic Y3/6 block from a plate 16. For removal of the electrohydraulic Y3/6 block it is necessary to wring out clamps on a stiffening rib of the sensor of temperature of transmission liquid.


Assembly

 PERFORMANCE ORDER

Assembly is carried out as it should be, the return to dismantling.