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Removing and installing rear final drive > < Removing and installing clutch for four-wheel driveN445 or clutch valve 2 for four-wheel driveN446

A4 Mk3

Checking torque distribution
Checking torque distribution
Special tools and workshop equipment required
   
t  Vehicle diagnostic, testing and information system -VAS 5051B-
Procedure:
  Note
t  Refer to general repair instructions → Chapter.
t  Observe safety precautions → Chapter.
The function 22 - Check torque distribution must be performed after the following operations:
t  Work on wiring of rear final drive
t  Work on valves: clutch valve for four-wheel drive -N445- and clutch valve 2 for four-wheel drive -N446-
t  Work on hydraulic control unit
–  Raise vehicle on a platform until wheels no longer make contact with the floor.
–  Connect vehicle diagnostic, testing and information system -VAS 5051- and switch on ignition.
–  Using vehicle diagnostic, testing and information system -VAS 5051- in Guided Functions mode, select 22 - Four-wheel electronics and then select the function 22 - Checking torque distribution.
l  It is important to follow all instructions given by the vehicle diagnostic, testing and information system -VAS 5051- exactly.
Vehicle diagnostic, testing and information system -VAS 5051B- is used to check if torque is shifted to the correct side when the rear final drive is activated.
  W00-1236

Removing and installing rear final drive > < Removing and installing clutch for four-wheel driveN445 or clutch valve 2 for four-wheel driveN446