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 leading shaft with coupling by K2 and the forward block of planetary gear wheels

84 — the Internal support of coupling K1 with the integrated forward block of planetary gear wheels, 84a. Gear wheel
84b, 104, 106 — Lock rings
85 — the Persistent needle bearing
100 — the Conducting shaft with coupling of K2
101 — the Piston
101 and — the Internal epiploon of the piston

101b — the External epiploon of the piston
102, 107 — Disk springs
103 — the Spring clamp
103a — the Epiploon of a spring clamp
105 — the Block of disks


Check of a gap between a lock ring 90 and an external disk 89c

100a — the External support of coupling K2
101 — the Piston
105a — the External disk 1.8 mm thick
105b — the External disk thickness 3.5 mm thick / new is 2.8 mm
105s — the External disk 4.0 mm thick

105d — Frictional disks
106 — the Lock ring
107 — the Disk spring
"L" — the Gap


Dismantling

 PERFORMANCE ORDER

1. Disconnect the transmission case from the hydrotransformer case.
2. Remove couplings of K1, K2 and KZ.
3. Take a lock ring 84b from an internal support of coupling K1 84 and remove a gear wheel 84a.
4. Remove the leading shaft with coupling K2 100.
5. Remove the needle persistent bearing 85.
6. Remove a lock ring 106 from an external support of coupling K2.
7. Remove the block of disks 105.
8. Remove a disk spring 107.

9. Establish a stripper 076 on a spring clamp 103 and press on it until the lock ring 104 is not released.

10. Remove a lock ring 104.
11. Remove a disk spring 102 and take the piston 101 of an external support.


Assembly

 PERFORMANCE ORDER

Assembly is carried out as it should be, the return to dismantling. Check a gap between a lock ring 106 and an external disk 105c.
The size of gaps in coupling of K2 is specified in the table. Adjust a gap by means of a lock ring 106. Thickness of a lock ring: 2.3, 2.6, 2.9, 3.2, 3.5 and 3.8 mm.