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


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Multidisk brakes of B2, B3 and gear wheel of blocking at "Parking"

Multidisk brakes of B2, B3 and gear wheel of blocking at "Parking"

2 — the transmission Case
11 — Bolts
14 — the Multidisk brake of B2
15 — a blocking Gear wheel at "Parking"
133 — the Multidisk brake 		B3, 133a — the Lock ring
133b — Spring laying

Check of a gap of "L" in a multidisk brake of B3

2 — the transmission Case (an external support of a brake B3)
14a — the Piston
133a — the External disk 6.5 mm thick
133b, 133s — External disks 1.8 mm thick 		133d — the Disk spring
133e — Frictional disks
133f — the Lock ring
"L" — the Gap

Dismantling

 PERFORMANCE ORDER

1. Remove the transmission from the hydrotransformer.
2. Remove a multidisk brake of B3 (133) and spring laying (133b), having taken out a lock ring (133a) from the transmission case.
3. Turn off bolts (11).
4. Take a multidisk brake of B2 (14) from the transmission case.
5. Remove a blocking gear wheel at "Parking" (15).


Assembly

 PERFORMANCE ORDER

Assembly is carried out as it should be, the return to dismantling. Check and measure a gap in a multidisk brake of B3. A gap of "L" in a multidisk brake of B3: 1.0 - 1.4 mm.

Establish B3 brake disks together in the order presented on an illustration 12.6 and insert them in turn. Measure a gap of "L" between a lock ring (133f) and an external disk (133a) in three points. During measurement the lock ring (133f) has to concern the top ring of the bearing in a groove of an external support of a brake (2).

Adjust a gap by means of lock rings (133f) if it is necessary. Thickness of lock rings: 3.2, 3.5, 3.8, 4.1, 4.4 and 4.7 mm.