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

Case of transmission and hydrotransformer

1 — the hydrotransformer Case
1a, 2a, Zb, 19a — Bolts
2 — the transmission Case
3 — the Pallet
For — the Strut
5 — the Oil filter
12a — Teflon rings
18, 67a — Laying
19 — the AT Electrohydraulic control unit

20 — the Radial epiploon
21 — the Directing plug
21a — Sealing rings
47 — the Nut
48 — the Output flange
67 — the Ball bearing
68 — the Lock ring



1. Weaken the directing plug 21 and remove it from transmission.
2. Remove the pallet 3.
3. Remove an oil filter 5.
4. Turn off bolts 19a and remove the AT 19 electrohydraulic control unit.
5. Remove a flange 48.
6. Vypressuyte a radial epiploon 20, remove laying 67a, a lock ring 68 and a vypressuyta the ball bearing 67 of the transmission case.
7. Remove laying 18.
8. Turn off a bolt 1a and 2a from the case the hydrotransformer and transmissions.
9. Remove the case of transmission 2 from the case the hydrotransformer 1.



1. Grease with sealant and insert into a groove everything together teflon rings 12a
2. Install the transmission 2 on the hydrotransformer 1. Combine disks of brakes of B2 and VZ.
3. Wrap bolts 1a and 2a.
4. Measure a gap between a doggie of the parking brake and the ball bearing. It has to be within 0.3-0 5 mm.
5. Establish laying 18, press the ball bearing in a back part of the case of transmission.
6. Establish laying 67a.
7. Install a radial epiploon 20 in the transmission case.
8. Establish a flange 48.
9. Establish and tighten bolts of fastening of the AT 19 electrohydraulic control unit.
10. Further assembly is carried out as it should be, the return to dismantling.