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.
2021 BMW M2 Standard TransFACTORY OEM SERVICE PROCEDURE
11 00 Engine
11 00 STANDARD SCREW CONNECTION - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Screws and nuts | M5 | 5 Nm ± 0.5 | ||
| 2AZ Screws and nuts | M6 | 8 Nm ±±1 | ||
| 3AZ Screws and nuts | M7 | 13 Nm±2 | ||
| 4AZ Screws and nuts | M8 | 19 Nm±3 | ||
| 5AZ Screws and nuts | M10 | 38 Nm±5 | ||
| 6AZ Hose clamp, WAF 5 | 1.0 to 1.5 Nm | |||
| 7AZ Hose clamp, WAF 6 | 2.5 up to3.5 Nm |
11 00 TIGHTENING TORQUE OVERVIEW
| Engine mounting bracket on assembly jig | ||
|---|---|---|
| M14x95 | Tightening torque | 130 Nm |
| Engine mount to engine mounting bracket | ||
| Hexagon screws from special tool set | Tightening torque | 105 Nm |
| Motor mount on the engine stand | ||
| M10 | Tightening torque | 100 Nm |
| Standard screw connection 4 Nm | ||
| Oval-head screw | Tightening torque | 4 Nm |
| Standard screw connection hose clamp 5 | ||
| Hose clamp L12 - L15 | tightening torque | 1.25 Nm |
| Standard screw connectionM10 | ||
| M10 | 38 Nm | |
| Standard screw connectionM5 | ||
| M5 | 5 Nm | |
| Standard screw connectionM6 | ||
| M6 | tightening torque | 8 Nm |
| Standard screw connectionM7 | ||
| M7 | 13 Nm | |
| Standard screw connectionM8 | ||
| M8 | tightening torque | 19 Nm |
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.
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