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.
61 21 Battery with terminal
2009 BMW Z4 30i, StandardSECTION 61 21 Battery with terminal
TIGHTENING TORQUE SPECIFICATION - BATTERY WITH TERMINAL
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Battery positive lead, battery negative lead, safety battery terminal, IBS (screw connection from above) | E89 | M6 | 5 Nm | |
| 2AZ | Battery positive lid to distributor, safety battery terminal | E89 | M8 | 15 Nm | |
| 4AZ | Battery positive lead to transfer point | E89 | M8 | 15 Nm | |
RENDER: 1.0x
NO RELATED
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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.