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 MANUALSBMW2006323I AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEIGNITION SYSTEMENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUESCONTROL UNIT BOX12 90 CONTROL UNIT HOUSING
2006 BMW 323i Automatic
12 90 Control Unit Housing
2006 BMW 323i AutomaticSECTION 12 90 Control Unit Housing
CONTROL UNIT HOUSING TIGHTENING SPECIFICATION
| Type | Thread | Measure | |
|---|---|---|---|
| 1AZ Assembly of upper and lower sections | E32 / E34 / E36 | 5 Nm | |
| 2AZ Center section to body | E32 / E34 | 3 Nm | |
| 3AZ Control unit holder in E box | E36 | 5 Nm | |
| 4AZ Control unit box cover | E38 / E39 / E52 | 4 Nm | |
| E46 | 6 Nm | ||
| E53 / E36/7 / E54 | 3 Nm | ||
| 5AZ Electronics box to firewall | E65 | Plastic screw | 6 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.