Mercedes S-Class W-140

1991-1999 of release

Repair and car operation

Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
- Автоматичеcкая transmission
   Search of malfunctions - the general information
   - Automatic transmission 722.5
      Removal, check of a condition and installation of the converter of rotation (hydrotransformer)
      Removal and installation of a centrifugal regulator
      Removal and installation of the sensor switch of blocking of a starter (start permission)
      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 LB3 piston installation
      Removal and installation of a back cover of transmission
      Dismantling and assembly of klapanny assembly of AT
      Dismantling and transmission assembly
      Installation and gap check in multidisk brake В3
      Gap measurement in brake В1
      Coupling of raising transfer
      Removal, installation and check of components of a brake of BS of raising transfer and KS coupling
      Dismantling and assembly of the coupling of a free wheeling
      Dismantling and assembly of planetary mechanisms
      Dismantling and assembly of coupling К1
      Coupling К2
      Lever of the selector of gear shifting
   + Automatic transmission 722.6
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


Coupling К2


Design of coupling К2

1 — the Support of external disks
2 — the Piston
3 — the Spring
4 — the Spring plug
5, 11 — Lock rings

6 — the Internal disk
8, 10 — External disks
12, 13 — Sealing rings
020 — the Stripper
A — the Gap in coupling К2


1. Remove a lock ring (11) from an external support (1) external disks of coupling.
2. Remove disks (6), (8) and (10). Check disks on lack of wear and damages.
3. Establish a stripper (020) on the spring plug (4) and remove a lock ring (5).
4. Remove the spring plug (4) and springs (3).
5. Take the piston (2) of a support (1).
6. Remove sealing rings (12) and (13) from the piston (2).



1. Establish sealing rings (12) and (13) on the piston (2). Track, that sealing edges did not appear are overwound and established in the arrow direction.
2. Establish the plug (021) on a support (1), grease the plug (021) and sealing rings (12) and (13) transmission oil, carefully establish the piston (2) in a support (1), press the piston (2) without a distortion, slightly turning it.
3. Establish the spring plug (4) and springs (3).
4. Establish a stripper (020) on the spring plug (4) and establish a lock ring (5).
5. Establish disks (6), (8) and (10) in a support (1).
6. Establish a lock ring (11).

Gap check

Check «A» gap. The nominal size of a gap "And" in coupling К2 lies within a range of 0.7-1.3 mm. Adjust a gap with a way of a selection of a lock ring (11). Lock rings in thickness 2.0, 2.5 and 3.0 mm are issued.