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 MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1738 (ENGINE - TIGHTENING TORQUES)ENGINE BLOCK11 11 ENGINE BLOCK
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
11 11 Engine block
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 11 11 Engine block
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - ENGINE BLOCK
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Bearing cap to crankcase (ASA collar screw) | N63 | M11x102 | Replace screws | |
| Jointing torque | 20 Nm | |||
| Torque angle | 100 ° | |||
| 2AZ Bearing cap to crankcase (ASA collar screw 10.9) | N63 | M8x70 | Replace screws | |
| Jointing torque | 10 Nm | |||
| Torque angle | 55 ° | |||
| 3AZ Threaded support sleeves | N63 | Jointing torque | 6 Nm | |
| 4AZ Angled screw connection to crankcase | N63 | M8x37 | Flanged head screw 10.9 | 34 Nm |
| 5AZ Spacer bolt, oil pump | N63 | M8 | 34 Nm | |
| 6AZ Screw plug, water drain | N63 | M14x1.5 | Replace seal | 25 Nm |
| 7AZ Screw plug, main oil gallery rear and in V-space right | N63 | M18x1.5 | Replace seal | 25 Nm |
| 8AZ Oil nozzle to crankcase | N63 | M12x1 | 10 Nm | |
| 9AZ Special tool to crankcase | N63 | M8x35 | 20 Nm | |
| 10AZ Special tool to crankcase | N63 | M10x35 | 40 Nm | |
| 10AZ Special tool 11 8 930 to special tool 00 2 300 | N63 | M14x35 | 160 Nm |
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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.