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.
12 42 Alternator lead
2013 BMW X3 35iSECTION 12 42 Alternator lead
TIGHTENING TORQUE SPECIFICATION - ALTERNATOR LEAD
| Type | Thread | Tightening specifications | Dimension | ||
|---|---|---|---|---|---|
| 1AZ | Battery positive lead to alternator | N20/N26 | M8 | 19 Nm | |
| 2AZ | Battery positive lead to starter | N20/N26 | M8 | 13 Nm | |
| 3AZ | Battery positive lead to battery positive terminal | N20/N26 | M8 | Flange nut | 15 Nm |
| M6 | Flange nut | 8 Nm | |||
| 4AZ | Battery positive lead to battery positive terminal | N20/N26 | M6 | Flange nut | 10 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.