Selector lever
The lever has six positions:
- P - parking
- R - reverse
- N - neutral
- D - automatic engagement of all forward gears
- 3 - automatic inclusion of I, II and III gears
- 2 - automatic inclusion of I and II gears
Index | Gearbox type | ||
722.402* | 722.112** | ||
Number of gears | 5 | 5 | 5 |
Engine Models | M 102 | M 123, M 110 | M 110, M 123 |
Broadcast | gear ratios | ||
1st gear | 4,25 | 3,98 | 3,68 |
2nd gear | 2,41 | 2,39 | 2,41 |
3rd gear | 1,49 | 1,46 | 1,44 |
4th gear | 1,00 | 1,00 | 1,00 |
Reverse | 5,67 | 5,47 | 5,14 |
*Automatic transmission on vehicles manufactured after 1980.
** The automatic transmission was produced in two gear ratios.
Characteristic | Meaning |
Pilot pressure, type 722.402/722.400, kg/cm | |
modulating pressure | 2,3/2,9 |
operating pressure | 11,5±1,0/13,8±1,0 |
pressure in the centrifugal regulator | |
| 1,0/1,0 |
| 2,5/2,5 |
Torque converter
Characteristic | Meaning |
Torque converter diameter, mm | 245 |
Torque converter speed (when checking) with blocked brakes, not less than, rpm | 1600—1800 |
Gearbox oil
Characteristic | Meaning |
Refueling capacity of the gearbox housing, l | |
| 6,6 |
| 5,5 |
Oil used | ATF |
Replacement frequency | every 60,000 km |
Note. Automatic transmission failures are almost always caused by low oil levels or improper adjustment of the selector actuator or low linkage.
The oil level, if it has a temperature of about 80°C, should be near the mark «MAX» on the probe. At an oil temperature in the range of 20-30°C, the level should be at the mark «X» above mark «MIN».
Model | Value «X», mm |
200 to 5.83 | 30 |
230 | |
230E to 4.83 | |
250 to 8.81 | |
280 | |
280E to 8.81 | |
200 from 6.83 | 12 |
230E from 5.83 | |
250 from 9.81 | 10 |
280E from 9.81 |
Tightening torques of the main threaded connections, kgf·m
Connection type | Meaning |
Bolt of fastening of the hydraulic block | 0,8 |
Bolt of fastening of an oil crankcase | 0,8 |
Drain plug for oil sump and transformer | 1,4 |
Bolt of fastening of the vacuum regulator | 0,8 |
Phillips screw for oil filter | 0,4 |
Nut of fastening of a flange of an output shaft | 12,0 |
Bolt of fastening of the back pump | 0,8 |
Bolt of fastening of a forward cover to the forward pump | 2,0 |
Bolt of fastening of a leading flange of the transformer | 4,2 |
Bolt for securing the transformer or front cover to the gearbox housing | 1,3 |
Bolt of fastening of a back cover to a case of a transmission | 1,3 |
Nut of fastening of an arm of a centrifugal regulator | 0,6 |
Starter and reverse light switch | 0,8 |
Foot shift control solenoid valve | 2,0 |
Plugs of control sockets | 1,3 |
Bolt of fastening of an automatic transmission to the block of the engine | |
| 5,5 |
| 6,5 |
Pedal Shift Solenoid Valve | 2,0 |
Plugs of control sockets | 1,3 |
Parts of an automatic gearbox
1 - torque converter; 2 - front pump housing; 3 - input shaft; 4 - front planetary gear; 5 - output shaft and rear planetary gear; 6 - external satellite; 7 - ring gear; 8 - gear wheel parking brake; 9 - drive gear of the speedometer drive; 10 - output shaft flange; 11 - flange fastening nut; 12 - bearings; 13 - clutch cup; 14 - clutch drum; 15 - sealing ring; 16 - front clutch piston; 17 - outer clutch discs; 18 - internal clutch discs; 19 - retaining ring; 20 - rear clutch drum; 21 - piston; 22 - front clutch band brake; 23 - rear clutch band brake; 24 - clutch drive piston; 25 - pushers; 26 - centrifugal regulator