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, see 61 12 1AZ in 61 12 AUXILIARY CABLE .

Disconnect battery positive leads (2).

Fig 1: Identifying Covers And Battery Positive 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: Turning Clamping Rings In Direction Of Arrow

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

Fig 3: Identifying Battery Positive Lead And Luggage Compartment Floor

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Release bolt (1) and nut (2).

Remove cover (3).

Fig 4: Identifying Bolt, Nut And Cover

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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: Locating 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

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NOTE: Electronics box shown removed for purposes of clarity.

Unclip cover cap (1).

Release nuts underneath.

Tightening torque, see 61 12 4AZ in 61 12 AUXILIARY CABLE .

Remove positive battery cable.

Fig 7: Identifying Cover Cap

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Release wiring harness holder (1).

Feed out battery positive lead in direction of arrow.

Fig 8: Feeding Out Battery Positive Lead In Direction Of Arrow

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