gf3530p2002a

Rear axle differential actuator motor, basic function

Type gf · topic 35.30 · version 0105 · 2020-07-16

Applies to: Model all with transmission 700.4, 724.0/1 with code M005 (Vehicles with 4MATIC/all-wheel drive)

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.30 Final drive, drive shafts — Series 900 (models 9**) · Series 902 (models 9**) · Series 904 (models 918, 919, 924, 925, 938, 943, 957) · Series 906 (models 917, 918, 924, 953)

Also applies to engines/gearboxes: 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**

GF35.30-P-2002A

Rear axle differential actuator motor, basic function

22.06.2020

Model

all with transmission 700.4, 724.0/1

with code M005 (Vehicles with 4MATIC/all-wheel drive)

Rear axle differential actuator motor, basic function

P35.30-2175-79

Example illustration of model 177

1

Rear axle differential actuator motor

Overview

This document contains information on:

General

Function

Function

The rear axle differential drive unit actuates the multiplate clutch integrated in the rear axle differential. To open or close the plates, the electric motor transmits an axial force onto the plate pack via a spur gear stage and a ball ramp. The rear axle differential drive unit can be actuated irrespective of the engine speed. It can therefore be actuated while stationary.

The rear axle differential drive unit is initialized at system start. A temperature sensor and two Hall sensors are installed in the rear axle differential drive unit. The temperature sensor provides information to calculate the temperatures of the clutch and the transmission oil. The Hall sensors detect the following:

Movements of the electric motor

Rpm of electric motor

The rear axle differential drive unit is located on rear axle differential.