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

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Dismantling and assembly of coupling К3

44а — the External support
44b — the Sealing ring
44с — the Piston
44d — the Spring plate

44е, 44h — Lock rings
44f — the Disk spring
44g — the Block of disks
072 — the Stripper

Gap check between a lock ring of 44 g and an external disk 41 and

37 — Frictional disks in thickness of 1.6 mm / new thickness of 2.1 mm
41а — the External disk in thickness of 4.0 mm
41b — the External disk in thickness of 3.5 mm / new thickness of 2.8 mm
41с — the External disk in thickness of 1.8 mm

44а — the External support of coupling of KZ
44g — the Lock ring
44h — the Disk spring
L — the Gap



1. Remove a lock ring 44h from an external support.
2. Remove the block of disks 44g and a disk spring 44f from an external support.
3. Establish a stripper 072 on a spring plate 44d and press it until the lock ring 44е will not be released.
4. Remove a lock ring 44е.
5. Remove a spring plate 44d and the piston 44с from an external support.



Assembly is carried out as it should be, the return to dismantling. Check a gap between a lock ring 44g and an external disk 41а.

The size of gaps in coupling of KZ is specified in table 5. Adjust a gap by means of a lock ring 44g. Thickness of a lock ring: 2.0, 2.3, 2.6, 2.9, 3.2 and 3.5 mm.