Replacing Wiring Harness Section for Engine

12 51 001 - Replacing wiring harness section for engine (S85)

Necessary preliminary tasks:
- Read out fault memory of control unit of Digital Motor Electronics (DME)
- Check stored fault messages.
- Switch off ignition
- Disconnect battery Instructions for Disconnecting and Connecting Battery
- Remove intake air manifold Service and Repair
- Remove cover for ionic current control unit on left and right
- Remove ignition coil cover on left and right
- Unlock all plug connections in electronics box and disconnect

Release bolt on cable duct (1).

Release bracket on underside of transmission.
Lay cable, plugs of oxygen sensors, temperature sensor and crankshaft sensor over bracket of right catalytic converter.
Feed out cable towards top.
Remove wiring harness.

Installation:
Pay attention to cable routing/mounting points.
Now clear the fault memory.