Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Disconnecting and connecting battery ground lead (Cooper Convertible)
Observe and follow SAFETY INSTRUCTIONS for handling vehicle battery.
,
Comply with NOTES for disconnecting and connecting the vehicle battery and
INSTRUCTIONS on intelligent battery sensor (IBS).
Removal:
Partially detach seal (1).
Loosen cap nuts (1).
Open locks (2) by turning them counter-clockwise.
Remove windshield panel cover (3).
Loosen nut (1).
Remove battery ground lead (2).
Unlock connector (3) from IBS and disconnect.
Secure battery ground lead (2) at the side.
Installation:
Connect the connector (3) to the IBS.
Join battery ground lead (2).
Tighten nut (1).
Tightening torque 61 21 1AZ .
Thread in the windshield panel cover (3).
Turn the locks (2) to the right until the stop is reached.
Tighten cap nuts (1).
Tightening torque 61 21 6AZ .
Join gasket (1).
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.