61 12 004 Replacing battery positive lead (from luggage compartment connector to engine bulkhead connector)

WARNING: This page is about a different variant/trim than selected.

IMPORTANT: Read and comply with notes on HANDLING WIRING HARNESSES and cables.

Necessary preliminary tasks:

Work is shown on the E82 N52N by way of example. There may be differences in detail in the case of other vehicle models.

Unclip covers (1) and release nuts underneath. Tightening torque 61 12 1AZ .

Disconnect battery positive leads (2).

Fig 1: Identifying Positive Battery Leads

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Turn clamping rings (1) in direction of arrow and remove.

Installation:

Make sure clamping rings (1) are correctly seated.

Fig 2: Twisting Tension Ring Left

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Remove battery positive lead (1) from luggage compartment floor (2).

Fig 3: Removing Battery Positive Lead From Luggage Compartment Floor

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Release bolt (1) and nut (2).

Remove cover (3).

Fig 4: Identifying Bolt, Cover And Nut

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Release holder (1) from body.

Feed out battery positive leads (2) and vent line (4) from holder (1).

Release retaining clips (3) and remove vent line (4) from cover (5).

Release all nuts and remove cover (5).

Fig 5: Identifying Retaining Clips, Vent Line And Cover

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Release attachment points for battery positive lead (1) from body.

Fig 6: Identifying Attachment Points For Battery Positive Lead From Body

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NOTE: Electronics box shown removed for purposes of clarity.

Unclip cover cap (1).

Release nuts underneath.

Tightening torque 61 12 4AZ .

Remove positive battery cable.

Fig 7: Identifying Unclip Cover Cap

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Release wiring harness holder (1).

Feed out battery positive lead in direction of arrow.

Fig 8: Identifying Wiring Harness Holder

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