Mercedes C-Class

W203 since 2000 of release

Repair and car operation



Mercedes-Benz
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
- Automatic transmission
   Specifications
   + the Automated box of gear shifting 716.6
   - Automatic transmission 722.6
      Search of malfunctions - the general information
      Problems of the block of electronic control and operating signals
      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, В3 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
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






Dismantling and assembly of coupling К3

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 (44g) and an external disk (41а)

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 К3
44g — the Lock ring
44h — the Disk spring
L — the Gap

Dismantling

 PERFORMANCE ORDER

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

 PERFORMANCE ORDER

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 К3 is specified in the table. 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.
Gaps in coupling К3, mm
Disk 2
2,30-2,70
Disk 3
2,40-2,80
Disk 4
2,50-2,90