13 54 544 Removing And Installing/Replacing Left Hall Sensor (S85)

Necessary preliminary tasks: 

• Read out fault memory of DME control unit.
• Switch off ignition.
• Follow instructions for disconnecting and connecting battery. See 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .
• Disconnect BATTERY NEGATIVE LEAD and cover.
• Remove intake air manifold. See 11 61 050 REMOVING AND INSTALLING AIR INTAKE MANIFOLD (S85) .

Release nut and remove line (1).

Tighten to specified torque, see 12 52 2AZ in 52 CONNECTORS, PLUGS .

Remove cover (2) from control unit for ionic current.

Unlock plug (3) and remove.

Fig 1: Identifying Line, Cover And Plug

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Release screw and remove holder (1).

Release wiring harness from retaining clip (2).

Disconnect lead (3).

Fig 2: Identifying Holder, Retaining Clip And Lead

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Unlock plug (1) and remove.

Release screw and carefully raise cable duct (2).

Fig 3: Identifying Plug And Cable Duct

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Release screws and detach Hall sensor (1) towards front.

Installation: 

Make sure Hall sensor is installed in correct position.

Fig 4: Locating Hall Sensor Screws

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