12 51 235 Replacing the engine sensor system module 1 wiring harness section (B36, B38)
Attention!
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .
Necessary preliminary tasks:
- Remove left LEFT COWL PANEL COVER .
- Disconnect BATTERY NEGATIVE LEAD .
- Remove INTAKE PLENUM .
- Remove FAN COWL .
- Remove FRONT UNDERBODY PROTECTION .
Removal:
Release expanding rivet and remove mounting for gasket (1).
Release screw and remove tension strut (1).
Unclip and remove cover (1).
Unlock and disconnect all connectors (1) on control unit.
Remove partition wall (1).
| Unlock and disconnect following connectors and lines | Note |
|---|---|
| Unlock and disconnect connector from DME control unit | |
| Unlock and disconnect connector from knock sensor | |
| Unlock and disconnect connector from charging pressure sensor on intake plenum | |
| Unlock and disconnect connector from throttle valve | |
| Unlock and disconnect connector from charging pressure sensor upstream of throttle valve | |
| Unlock connector on crankshaft sensor and disconnect | |
| Unlock and disconnect connector from gear sensor | |
| Unlock connector on oil pressure sensor and disconnect | |
| Unlock connector on solenoid valve and pull off. | |
| Unlock connector on air conditioning compressor and disconnect | |
| Unlock and disconnect connector from thermostat | |
| Unlock connector on coolant temperature sensor and disconnect | |
| Unlock connector on tank vent valve and disconnect | |
| Unlock connector on oil level sensor and disconnect |
Release wiring harness from clips and retainers.
Feed out wiring harness and remove.
Installation:
Route and install wiring harness.
Plug in all connectors as specified in table.
All connectors must audibly engage.
Join tension strut (1) and tighten with screws.
Tightening torque 61 21 5AZ .
Join mounting for gasket (1) and secure with expanding rivet.
Install partition wall (1).
Connect all connectors (1) to control unit.
All connectors (1) must engage audibly.
Installation note:
Connect connectors from front to rear.
Install cover (1).