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

WARNING: This page is about a different car, the 2006 BMW X3, 2005 BMW X3, and 2004 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Observe safety instructions for handling vehicle battery. Refer to 61 00... SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY .

Necessary preliminary tasks:

Remove RIGHT LUGGAGE COMPARTMENT WHEEL ARCH TRIM
Remove INSTRUMENT PANEL TRIM
Remove RIGHT FRONT SEAT
Remove CENTRAL BASS SPEAKER COVER
Remove PANEL FOR DOOR PILLAR ON RIGHT

Unfasten plug connection (2) and disconnect.

Fig 1: Opening Positive Terminal Cover

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Disconnect battery negative lead (1). Refer to 12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Open positive terminal cover (3).

Release nut (3), tightening torque, 61 12 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 2: Releasing Nuts

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Disconnect lead (4).

Release nut (1) of safety battery terminal (2), tightening torque, 61 21 1AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

IMPORTANT: Do not under any circumstances pull/lever safety battery terminal (2) off by force.

Detach safety battery terminal (2) towards top, lay to one side and secure.

Lever out covers (1) and remove.

Fig 3: Removing Covers

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Release screws (2).

Lift out rail (3).

IMPORTANT: Under no circumstances bend carpet.

Cut carpet (1) as illustrated and fold back.

Fig 4: Cutting Carpet

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Installation:

Join cutting lines together at marked points (2) using cable ties (short).

Unlock cable lug mounting (1) and fold back. Release screw (2), tightening torque, 61 12 2AZ. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 5: Unlocking Cable Lug Mounting