13 54 546 Removing and Installing/Replacing Right Hall Sensor (S85)

13 54 546 - Removing and installing/replacing right Hall sensor (S85)





Special tools required:
- 34 3 171 34 3 170 Set of Socket Wrenches





Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Switch off ignition
- Follow instructions on connecting and disconnecting battery Instructions for Disconnecting and Connecting Battery
- Disconnect battery negative lead Disconnecting and Connecting Battery Negative Lead and cover
- Remove intake air manifold Service and Repair

Note:
Hall sensor and throttle valve assembly 5 are removed together as a single unit.





Release screws and disconnect injection pipe (1).
Release screw connections (2) of actuating levers. Grip screw and turn nut in the process.
Remove screws from bores.

Installation:
- Use screws and nuts only once.
- Only turn nuts and grip screws.
- Tightening torque 13 41 3AZ 13 41.

Unclip pull rods (3).





Release screw.
Tightening torque 13 54 3AZ 13 54.
Slide actuating shaft (1) in direction of arrow towards front and turn through approx. 180°.
Release nuts (2) with special tool 34 3 171 34 3 170 Set of Socket Wrenches.





Unlock plug (1) and remove.
Release wiring harness from retaining clip (2).
Release nut (3) and disconnect starter positive lead.
Tightening torque 12 52 2AZ [1][2]Power and Ground Distribution.
Unfasten nut.
Tightening torque 12 52 3AZ [1][2]Power and Ground Distribution.
Carefully raise cable duct (4) slightly and remove throttle valve assembly (5).





Release screws and detach Hall sensor (1) from throttle valve assembly.

Installation:
Make sure Hall sensor is installed in correct position.





Installation:
Clean sealing surface (1). Note correct position of adapter sleeves (2).





Installation:
Clean sealing face on cylinder head.
Replace O-ring (1) on cylinder head.





Note:
Perform basic throttle valve setting .