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.
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HOMESERVICE MANUALSMINI2013COOPER JCW, 2D CONVERTIBLE, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 353 (ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES)ALTERNATOR WITH DRIVE AND MOUNTING12 31 ALTERNATOR WITH DRIVE AND MOUNTING PARTS
2013 Mini Cooper JCW, 2D Convertible, Standard Trans
12 31 Alternator with Drive and Mounting Parts
2013 Mini Cooper JCW, 2D Convertible, Standard TransSECTION 12 31 Alternator with Drive and Mounting Parts
WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.
ALTERNATOR WITH DRIVE AND MOUNTING SPECIFICATION
| Type | Thread | Tightening Specification | Measure | |
|---|---|---|---|---|
| 1AZ Wires to alternator | ||||
| Terminal D+ | M10 / M20 | 5 N.m | ||
| All / others | M6 | 7 N.m | ||
| Terminal B+ | S38 / B38 | 8 N.m | ||
| All / others | M8 | 13 N.m | ||
| 2AZ Pulley | All | 45 N.m | ||
| 3AZ Pulley (ribbed drive belt) | Alternator with cooling jacket | 80 N.m | ||
| all others | 70 N.m | |||
| N42, N46 Valeo | 75 N.m | |||
| N42, N46 Bosch | 65 N.m | |||
| 4AZ Rear holder | All | 3.5 N.m | ||
| 5AZ Fillister head screw for wire holder | All | 3.5 N.m | ||
| 6AZ Alternator on bearing block | M40/M42 / M43 / M44 | 43 N.m | ||
| 7AZ Alternator to crankcase | N42, N46, N62 | M8 | 21 N.m | |
| 8AZ Belt pulley (ribbed V-belt) with freewheel (Ina) fitted to Bosch and Valeo alternators | N42 | 80 N.m |
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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.