gf2800p1001a

Basic function of all-wheel drive with automatic transmission

Type gf · emne 28.00 · version 0104 · 2020-06-27

Gælder for: Model all with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/all-wheel drive)

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Placering

Funktionsgruppe 2 Chassis › 28 Fordelergearkasse › 28.00 Generelt — Serie 900 (modeller 9**) · Serie 902 (modeller 9**) · Serie 904 (modeller 918, 919, 924, 925, 938, 943, 957) · Serie 906 (modeller 917, 918, 924, 953)

Gælder også for motorer/gearkasser: 139 ***, 254 ***, 256 ***, 272 ***, 276 ***, 282 ***, 457 9**, 541 9**, 542 9**, 608 ***, 700 4**, 700 420, 700 421, 700 422, 700 423, 715 3**, 715 5**, 722 6**, 722 9**, 724 ***, 724 0**, 724 033, 724 044, 724 045, 724 1**, 724 103, 724 114, 724 115, 724 120, 725 ***, 725 0**, 725 035, 725 037, 725 038, 725 085, 725 1**, 739 390, 739 391, 739 395, 739 396, 739 397, 739 398, 739 399, 740 698, 743 3**, 743 4**, 743 498, 746 971, 924 9**, 924 910, 925 9**, 926 9**

GF28.00-P-1001A

Basic function of all-wheel drive with automatic transmission

22.06.2020

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 50 Nm serves to improve traction at low engine torque and reduce driveline vibration.

Depending on the transfer case, a distinction is made between a fixed and variable drive torque distribution.

The fixed drive torque distribution is 50 % at the front axle and 50 % at the rear axle. 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/all-wheel drive)

GF28.10-P-1002A

Basic function of front axle differential

Model all with transmission 725.0/1
with code M005 (Vehicles with 4MATIC/all-wheel 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/all-wheel drive)

GF35.40-P-2001A

Traction control, basic function

Model all with transmission 725.0/1
with code M005 (Vehicles with 4MATIC/all-wheel 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/all-wheel drive)
Model 290 with transmission 725.0
as of model year 2021
with code M005 (Vehicles with 4MATIC/all-wheel drive)

GF28.00-P-1002B

Control units

Transfer case control unit, basic function

Model all with transmission 725.0/1
with code M005 (Vehicles with 4MATIC/all-wheel drive)

GF28.19-P-9890A

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