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 627 (ENGINE - TECHNICAL DATA)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
Section 627 (Engine - Technical Data)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Section 627 (Engine - Technical Data)
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2008 BMW Z4, 2007 BMW Z4, 2007 BMW 530xi, 2007 BMW 530i, and 2007 BMW 525xi. However, it is still accessible from the selected car via links, so may be relevant.
- 11 00 Engine in general N52 B25
- 11 00 Engine in general N52 B30
- 11 11 Engine Block, Cylinder Crankcase N52 B25
- 11 11 Engine Block, Cylinder Crankcase N52 B30
- 11 12 Cylinder Head with Cover N52 B25
- 11 12 Cylinder Head with Cover N52 B30
- 11 12 Cylinder Head with Valve Seat Cover N52 B25
- 11 12 Cylinder Head with Valve Seat Cover N52 B30
- 11 21 Crankshaft and Bearings N52 B25
- 11 21 Crankshaft and Bearings N52 B30
- 11 23 Vibration Damper N52 B25
- 11 23 Vibration Damper N52 B30
- 11 24 Connecting Rods and Bearings N52 B25
- 11 24 Connecting Rods and Bearings N52 B30
- 11 25 Pistons with Rings and Pins N52 B25
- 11 25 Pistons with Rings and Pins N52 B30
- 11 31 Camshaft N52 B25
- 11 31 Camshaft N52 B30
- 11 34 Valves with Springs N52 B25
- 11 34 Valves with Springs N52 B30
- 11 37 Variable valve gear N52 B25
- 11 37 Variable valve gear N52 B30
- 11 40 Oil Supply N52 B25 /B30
- 11 41 Oil Pump with Strainer and Drive N52 B25
- 11 41 Oil Pump with Strainer and Drive N52 B30
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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.