Basic Function Of All-Wheel Drive With Automatic Transmission - GF28.00-P-1001A
Model all with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/all-wheel drive)
Overview
This document contains information on:
- General
- Function
General
The all-wheel drive for automatic transmission consists essentially of the following component parts:
- Transfer case with front axle transmission output
- Front axle transmission
- Rear axle gear
Function
The automatically controlled all-wheel drive is a permanent all-wheel drive with interaxle differential.
The transfer case is flange-mounted to the automatic transmission or integrated into the automatic transmission. The basic locking torque of 40 Nm serves to improve traction at low engine torque and reduce drivetrain vibration.
Depending on the transfer case, a distinction is made between a fixed and variable drive torque distribution.
The fixed drive torque distribution between the front and rear axle is dependent on the installed transfer case. The drive torque is distributed via a single-speed transfer case without off-road ratio to the drive axles (drive train).
Variable transfer cases enable drive torque shifting of 0-100 % between the axles.
| Additional basic functions | |||
|---|---|---|---|
| Basic function of transfer case with front axle transmission output | Model all with transmission 725.0/1 with code 430 (On & off-road package) with code M005 (Vehicles with 4MATIC/allwheel drive) | GF28.10-P-1002A | |
| Basic function of front axle differential | Model all with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/allwheel drive) | GF33.30-P-1002A | |
| Electric differential lock basic function | Model all with transmission 725.0/1 with code 467 (Electronic locking differential) with code M005 (Vehicles with 4MATIC/allwheel drive) | GF35.40-P-2001A | |
| Traction control, basic function | Model all with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/allwheel drive) | GF42.40-P-1001A | |
| Detailed information | |||
| All-wheel drive with automatic transmission, detailed information | Model 167 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) | GF28.00-P-1002A | |
| Model 213, 238, 257 with transmission 725.0/1 as of model year 2021 with code M005 (Vehicles with 4MATIC/allwheel drive) Model 290 with transmission 725.0 as of model year 2021 with code M005 (Vehicles with 4MATIC/allwheel drive) |
GF28.00-P-1002B | ||
| Model 223 with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/allwheel drive) | GF28.00-P-1002D | ||
| Model 206 with code M005 (Vehicles with 4MATIC/allwheel drive) | GF28.00-P-1002E | ||
| Control units | |||
| Transfer case control unit, basic function | Model all with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/allwheel drive) | GF28.19-P-9890A |