Battery in luggage compartment under spare wheel
Remove spare wheel.
Release screws.
Set air supply system (1) to one side.
Follow instructions for disconnecting and connecting battery
Disconnect battery negative lead.
Disconnect supply cable (1) for vehicle electrical system.
Installation:
- Remove faulty fuses and carry out troubleshooting.
The repair cable is always a standard length.
The heavy-current connector of the repair cable has a larger diameter than the battery positive lead.
In some Series (e.g. E46 touring), the heavy-current connector of the repair cable can lead to installation problems.
This is the case when the interface is in the area of the close-fitting trim panels.
Find matching interface (e.g. approx. 10 cm behind rear seat back rest in E46 touring).
Lay repair cable parallel to battery positive lead.
Mark interface of battery positive lead at end of repair cable.
Release cable ties (1).
Disconnect plug connection (2).
A cable end that has been squashed flat will no longer fit into the clamping sleeve.
Saw through battery positive cable at marked point with an iron saw.
Strip insulation - length (A) - from cable end.
Distance (A) = 15 mm.
Push heavy-current connector (1) over stripped cable end and screw into position.
Push shrink-fit hose (3) over repair cable.
Screw threaded sleeve (1) of repair cable (2) to heavy-current connector.
Push shrink-fit hose (1) over connecting point and shrink on with a hot-air blower (2).
When laying the repaired battery positive cable, observe the following:
- The shrink-fit hose must not be scuffed during any movement.
- The repair cable must not cause any disturbing noises during driving operation.
Lay battery positive lead (1) without kinks or abrasions. (Shown on E46 touring.)