Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car



Mercedes-Benz
+ Mercedes-Benz cars of class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ 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 the operating signals
      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 B2, B3 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
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment







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

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

4 — the Internal support of coupling K1 with the built-in forward block of planetary gear wheels
84a — the 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 (89s)

100a. — 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 K3.
3. Take a lock ring (84b) from an internal support of coupling K1 (84) and remove a gear wheel (84a).
4. Remove the conducting shaft with coupling of 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) 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 (106) and an external disk (105s).

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.
Parameters
AT without diaphragm spring
AT with a diaphragm spring
Gaps in coupling of K2, 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