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.
1991 BMW M3FACTORY OEM SERVICE PROCEDURE
Steering Column: Identification
1991-92 CHASSIS & ENGINE IDENTIFICATION
| Model (Chassis Code) | Engine Size (Code) | |
|---|---|---|
| 1991 | ||
| 318i & 318is (E30) | 1.8L (M42) | |
| 325i & 325iX (E30) | 2.5L (M20) | |
| M3 (E30) | 2.3L (S14) | |
| 525i (E34) | 2.5L (M50) | |
| 535i (E34) | 3.5L (M30) | |
| M5 (E34) | 3.6L (S38) | |
| 735i & 735iL (E32) | 3.4L (M30) | |
| 750il (E32) | 5.0L (M70) | |
| 1992 | ||
| 318i & 318is (E30) | 1.8L (M42) | |
| 325i & 325is (E30) | 2.5L (M20) | |
| 525i (E34) | 2.5L (M50) | |
| 535i (E34) | 3.5L (M30) | |
| M5 (E34) | 3.6L (S38) | |
| 735i & 735iL (E32) | 3.4L (M30) | |
| 750il (E32) | 5.0L (M70) | |
Factory Service Tools
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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.