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
   Specifications
   Search of malfunctions - the general information
   + Automatic transmission 722.5
   + Automatic transmission 722.6
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type.

General parameters
Type
5-staged, with electronic
management of gear shifting
Designation
722.5 or 722.6

Transfer relations 722.6

S500
1st transfer
3.59: 1
2nd transfer
2.19: 1
3rd transfer
1.41: 1
4th transfer
1.00: 1
5th transfer
0.83: 1
Reverse gear
3.16: 1
Main transfer
2.82: 1
S320
1st transfer
3.93: 1
2nd transfer
2.41: 1
3rd transfer
1.49: 1
4th transfer
1.00: 1
5th transfer
0.83: 1
Reverse gear
3.16: 1
Main transfer
3.07: 1
ATF type
Volume of ATF, l

Pressure in AT 722.5 hydraulic system

Vacuum modulator
black
The modulating pressure, Bar
4.0
Working pressure, Bar
14.4±1

Pressure in the centrifugal regulator, Bar

At a speed of 30 km/h
0.90
At a speed of 56 km/h
2.30
Diameter of the hydrotransformer, mm
270

Efforts of tightening of threaded connections, Nanometer

722.5

Drain stopper in the transmission pallet
22
Drain stopper of the hydrotransformer
14
Bolt of fastening of the hydrotransformer
to a basic plate
42
Bolt of fastening of vacuum knot
8
Bolt of fastening of the secondary pump to AT case
8
Bolt of fastening of the secondary pump
to a forward cover
20
Bolt of fastening of a back cover
13
Nut of fastening of a flange of an output shaft
120
Sensor of protection against an overload
70
Bolt of fastening of a flange of K2 to AT case
11

722.6

Drain stopper of the hydrotransformer
16
Fastening bolt hydrotransformer
to a drive plate of M8
42
Drain stopper in the transmission pallet
20
Nut of fastening of the driveshaft
to the M12 transmission
60
Bolt of fastening of the electromagnetic valve
to a gear shifting plate
8
Bolt of fastening of a cover of the case of valves
to the case of M6x30 valves
8
Bolt of fastening of a side cover to a cover
cases of valves and to the case of M4x12 valves
4
Bolt of fastening of the case of transmission
to the hydrotransformer case
20
Bolt of fastening of the pallet to the transmission case
8
Nut of fastening of a flange of an output shaft
200
Bolt of fastening of the electrohydraulic control unit to the transmission case
8
Bolt of fastening multidisk
B2 brakes to the transmission case
16
Bolt of fastening of a doggie to the selector lever
gear shiftings
8
Bolt of fastening of the lever of the selector
gear shiftings to a body
6

Purpose of contacts of the 13-contact socket of transmission



1 Sensor of 3 turns (Y3/6n3)
2 Э / the magnetic valve of adjustment of the modulating pressure (Y3/6y1)
3 Sensor of 2 turns (Y3/6n2)
4 Entrance signal of the sensor of temperature (Y3/6b1) and contact of blocking of a starter (Y3/6s1)
5 —
6 Supply voltage э / magnetic valves
7 Sensor supply voltage
8 Э / magnetic valve of gear shifting of 2-3 (Y3/6y5)
9 Э / magnetic valve of gear shifting of 3-4 (Y3/6y4)
10 Э / magnetic valve of adjustment of pressure of switching (Y3/6y2)
11 Э / magnetic valve (blocking of the converter of rotation) (Y3/6y6)
12 Sensor case
13 Э / magnetic valve of gear shifting of 1-2/4-5 (Y3/6y3)