Wiring harness

Hydraulic system

An additional hydraulic control block is installed in the transmission for supplying oil pressure to the controlled rear differential lock; this control block is connected to the hydraulic control system and the CRDL by way of pipes and is integrated in the control and wiring harness system via an electric pressure adjuster (EDS 7). It is mounted on the centering plate.

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3c.7 Wiring harness

Since an additional electrical pressure control valve (EDS) can be installed for the controlled rear differential lock, the wiring harness and the routing has changed compared with the previous model. There is also an additional connection for the temperature sensor for the gear wheel oil. Power Transmission 3

1 Feed line 2 Control block 3 Vent for CRDL clutch chamber 4 Pressure line for CRDL 5 EDS 7 6 Pressure sensor for CRDL

2

Power Transmission 3

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The plug connections are identical with the predecessor control unit, but must not be interchanged under any circumstances.

3c.8 Transmission control unit

The transmission control unit is inserted in the heel plate (underneath the rear seat on the right) with a holder and fastened with a screw.

The control unit has been switched to lead-free solder to comply with environmental regulations.

Control unit shown in brown 3_40_11

Technical data for the control unit:

CPU: TriCore TC1767 (32 bit) Clock speed: 128 MHz RAM: 88 k (usable) ROM: 2 MB (flash)

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