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 and installation of the centrifugal regulator


Details of installation of the centrifugal regulator


1. Lift transmission.
2. Remove a cross beam of the engine (19). Remove an arm (10) of an exhaust pipe and a bracket (11), having turned off nuts (7).
3. Remove a guard (5).
4. Disconnect the forward driveshaft (71) from the transmission.
5. Disconnect an exhaust pipe (60) from a back support.
6. Turn off a shaft of a speedometer (9) or the inductive sensor (85a).
7. Press a cover (46) and remove a lock ring (43) and a sealing ring (48).

8. Turn a flange so that the centrifugal regulator (50) was installed in the situation shown on an illustration.
9. Insert nippers, squeeze a lock ring (43) and remove the regulator (50).



1. Turn the transmission to the right and insert the regulator (50) by means of nippers (072).
2. Insert an ear (shooter) into a flute in the regulator case. Make sure that the lock ring is blocked in a flute. If the regulator is installed correctly, the lock ring can rotate in a flute easily.
3. Check a condition of a sealing ring (48) and if it is necessary, replace it.