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 a leading shaft with coupling К2 and the forward block of planetary gear wheels

Dismantling and assembly of a leading shaft with coupling К2 and the forward block of planetary gear wheels

4 — the Internal support of coupling К1 with the built-in forward block of planetary gear wheels
84а — the Gear wheel
84b, 104, 106. — Lock rings
85 — the Persistent needle bearing
100 — the Leading shaft with coupling К2
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
103а — the Epiploon of a spring clamp
105 — the Block of disks

Gap check between a lock ring (90) and an external disk (89с)

100а. — External support of coupling К2
101 — the Piston
105а — the External disk in thickness of 1.8 mm
105b — the External disk in thickness of 3.5 mm / new thickness of 2.8 mm
105с — the External disk in thickness of 4.0 mm
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 К1, К2 and К3.
3. Take a lock ring (84b) from an internal support of coupling К1 (84) and remove a gear wheel (84а).
4. Remove a leading shaft with coupling К2 (100).
5. Remove the needle persistent bearing (85).
6. Remove a lock ring (106) from an external support of coupling К2.
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) will not be 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 (105с).

The size of gaps in coupling К2 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.
Parameters
AT without a diafragmenny spring
AT with a diafragmenny spring
Gaps in coupling К2, mm
Disk 3
1.40-1.80
2.30-2.70
Disk 4
1.50-1.90
2.40-2.80
Disk 5
1.70-2.10
2.50-2.90
Disk 6
1.80-2.20
2.70-3.10