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 MANUALSBMW2021I3 RANGE EXTENDERREPAIR AND DIAGNOSISGENERAL INFORMATIONOEM GENERAL INFORMATIONGENERAL ORPHAN DATAAIR CONDITIONING COMPRESSOR
2021 BMW i3 Range Extender
Air conditioning compressor
2021 BMW i3 Range ExtenderSECTION Air conditioning compressor
64 52 AIR CONDITIONING COMPRESSOR - TIGHTENING TORQUES SPECIFICATIONS
| Type | Thread | Tightening specifications | Dimension | |||
|---|---|---|---|---|---|---|
| 1AZ Refrigerant lines to air-conditioning compressor | I01 | M8 | Replace screws. | 19 Nm | ||
| I12 | M8 | 18 Nm | ||||
| 2AZ Compressor to electric machine housing | I01 | M6 | Replace screws. | 7.6 Nm | ||
| 3AZ Potential equalization line to compressor | I01 / I12 | M6 | 8 Nm | |||
| 4AZ Potential equalization to electric heater | I01 / I12 | M6 | Replace nut! | 4 Nm | ||
| 5AZ Electrical heater to body | I01 | M6 | Replace screws. | 2.6 Nm | ||
| I12 | M6 | 8 Nm | ||||
| 6AZ Electrical heater to holder | I01 / I12 | M6 | 8 Nm | |||
| 7AZ Changeover valve to holder | I12 | 2 Nm | ||||
| 8AZ Compressor to holder | I12 | M6 | Replace screws. | 7.0 Nm | ||
| 9AZ Compressor to holder | I12 | M8 | Replace screws. | 30 Nm | ||
| 10AZ Holder to electrical machine housing | I12 | M8 | 30 Nm | |||
RENDER: 1.0x
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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.