Replacing the wiring harness section for engine sensor system module 2 (B36, B38, B46, B48) (Cooper)
Preliminary work needed:
- Disconnect BATTERY NEGATIVE LEAD .
- Remove ACOUSTIC COVER .
- Remove INTAKE SILENCER HOUSING .
- Remove upper FIREWALL COVER .
- Remove CLEAN AIR PIPE .
Removal:
Overview of engine sensor system module 2 wiring harness section
| Unlock and disconnect following connectors and lines | Note |
| Unlock and disconnect connector from DME control unit | |
| Release connector from intake camshaft sensor and detach | |
| Release connector from hot film air mass meter and detach | |
| Release connector from high pressure sensor and detach | |
| Release connector from exhaust camshaft sensor and detach | |
| Unlock connector on high pressure pump and disconnect | |
| Unlock connector of monitoring sensor and detach | |
| Release connector from control sensor and detach | |
| Unlock connector on exhaust turbocharger and disconnect | |
| Unlock connector on heating element and disconnect |
Release expansion rivet (1).
Slacken nut (2).
Feed out cover (3) and remove.
Loosen the screws along the arrows.
Take out and remove tension strut (1).
Unscrew nuts (1).
Take out positive battery cables (2) and put them aside.
Slacken nut (1).
Release seal (2).
Feed out positive battery cable (3) and lay to one side.
Pull out the cable duct (1) and put it aside.
Pull out the cable duct (1) and put it aside.
Feed out partition wall (1) and remove.
Unlock the locks along the arrow.
Take out and remove the cover (1) from the guides (2).
Unlock and loosen the cable shaft (1) along the arrows.
Feed out cable duct (1) and remove.
Unlock and detach connector (1) on the control unit along the arrow.
Release wiring harness from clips and guard controls.
Take out and remove cable harness-section in engine sensor system module 2.
Installation:
Lay and install cable harness-section in engine sensor system 2 module.
Fix the cable harness-section in engine sensor system 2 module to the Clips and clamps.
All connectors must audibly engage.
Overview of engine sensor system module 2 wiring harness section
| Unlock and disconnect following connectors and lines | Note |
| Connect and lock the connector of DME control unit | |
| Connect and lock the connector of intake camshaft sensor. | |
| Connect and lock the connector of hot air flow meter. | |
| Connect and lock the connector for the high pressure sensor. | |
| Connect and lock the connector of exhaust camshaft sensor. | |
| Connect and lock connector of the high pressure pump. | |
| Connect and lock the connector of monitoring sensor. | |
| Connect and lock the connector on control sensor. | |
| Connect and lock the connector of exhaust turbocharger. | |
| Connect and lock the connector for the heating element. |
Connect and lock connector (1) along the arrow on the control unit.
Connectors (1) must engage audibly.
Insert and install cover (1) in the guides (2).
Lock the locks along the arrows.
Locks must engage audibly.
Thread in cable duct (1) and install.
Lock the cable shaft (1) along the arrows.
Locks must engage audibly.
Feed in partition wall (1) and install.
Thread in cable duct (1) and install.
Thread in cable duct (1) and install.
Feed in and install positive battery cable (3).
Feed in and install seal (2).
Installation note:
Make sure seal (2) is correctly seated.
Tighten nut (1).
Tightening torque 61 21 1AZ .
Insert and install positive battery cables (2).
Tighten nut (1).
Tightening torque 61 21 3AZ .
Insert and install tension strut (1).
Tighten screws along arrows.
Tightening torque 61 21 5AZ .
Feed in and install the cover (3).
Attach expanding rivet (1).
Tighten nut (2).
Required follow-up work:
- Install CLEAN AIR PIPE .
- Install INTAKE SILENCER HOUSING .
- Install upper FIREWALL COVER .
- Install ACOUSTIC COVER .
- Connect BATTERY GROUND LEAD .