Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car

Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
- Automatic transmission
   Search of malfunctions - the general information
   - Automatic transmission 722.5
      Removal, check of a state and installation of the converter of rotation (hydrotransformer)
      Removal and installation of the centrifugal regulator
      Removal and installation of the sensor switch of blocking of a starter (permission of start)
      Vacuum knot - installation details
      Removal, service and installation of the secondary pump (AT to No. 3652931)
      Removal and installation of a forward cover with the secondary pump
      Removal and installation of the LB3 piston
      Removal and installation of a back cover of transmission
      Dismantling and assembly of valvate assembly of AT
      Dismantling and assembly of transmission
      Installation and check of a gap in a multidisk brake of B3
      Measurement of a gap in B1 brake
      Coupling of the raising transfer
      Removal, installation and check of components of a brake of BS of the raising transfer and coupling of KS
      Dismantling and assembly of the coupling of a free wheeling
      Dismantling and assembly of planetary mechanisms
      Dismantling and assembly of coupling of K1
      Coupling of K2
      Gear shifting selector lever
   + Automatic transmission 722.6
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


Removal, check of a state and installation of the converter of rotation (hydrotransformer)



1. Install the transmission by the rotation converter up.
2. Turn a plastic finger of the converter of rotation on 1/4 turns counterclockwise.
3. Tighten handles (065) on the rotation converter
4. Take the rotation converter.


The case of the converter of rotation has the following nominal overall dimensions:

Diameter, mm
Height, mm
New assembly
Maximum permissible value


1. Install the rotation converter assembled with the secondary pump the leading flange up on a measuring plate (05).
2. Measure the dimensional height of "A" of the case of the converter of rotation. If the result of measurement exceeds extreme admissible value, replace the converter.



1. Grease a flange (32) with means of Molykote.
2. Establish a plastic finger and turn it on 1/4 turns clockwise.
3. Unscrew handles (065) from the rotation converter.
4. By means of a caliper measure the size of a vystupaniye "A" of the converter of rotation over the interfaced transmission case surface. The nominal rate makes 9.6 mm.