Replacing negative battery lead (Except M4 Convertible)

WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Comply with notes on BATTERY ELECTRONICS .

Removal:

Open flap (1) and remove.

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Slacken nut (1) on negative terminal (2).

IMPORTANT: Do not under any circumstances pull negative terminal off by force!

Detach negative terminal upwards, lay to one side and secure.

Release nut (3) and remove battery earth lead (4).

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Installation:

Join battery earth lead (4) on ground point and tighten with nut (3).

Tightening torque 61 21 6AZ .

Join negative terminal (2) on negative battery terminal and tighten with nut (1).

Tightening torque 61 21 1AZ .

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Close and lock flap (1).

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