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 1106 (FUEL SYSTEM - TIGHTENING TORQUES)SENSOR FOR CONTROL UNIT13 62 SENDERS FOR CONTROL UNIT
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
13 62 Senders For Control Unit
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 13 62 Senders For Control Unit
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
SENDERS FOR CONTROL UNIT - TORQUES SPECIFICATION
| Type | Tightening Specification | |
|---|---|---|
| 1AZ Temperature time switch | M21/M51 | 18 Nm |
| 2AZ Temperature sensor, water | M60/1/M60/2/M21/M51 | 18 Nm |
| all others | 13 Nm | |
| 3AZ Temperature switch | All | 28 Nm |
| 4AZ Temperature sensor, air | All | 13 Nm |
| 5AZ Charge-air pressure sensor to bracket | M51/M41 | 4 Nm |
| Charge-air pressure sensor to intake manifold | M47 | 5 Nm |
| 6AZ Dual temperature sensor (4-pin plug connection) | M41/M43/M44/S50/S52/M52/M57/M67/M62/M73 | 13 Nm |
| 7AZ Air-mass sensor on lower section of intake filter housing | M51 | 3.5 Nm |
| Air-mass flow sensor to cylinder head cover | M47/M47TU/M57/M57TU/M57T2 | 4.5 Nm |
| 8AZ Pulse generator, camshaft to cylinder head cover | M57 | 4.5 Nm |
| M47TU/M57TU | 3.5 Nm | |
| M57T2 | 2.3 Nm | |
| 9AZ Intake neck on air-mass flow sensor | M47 | 9 Nm |
SENDERS FOR CONTROL UNIT - TORQUES SPECIFICATION
| Type | Thread | Tightening Specification | |
|---|---|---|---|
| 1AZ Coolant temperature sensor | N54 | M12x1.5 | 13.5 Nm |
| 2AZ Intake pressure sensor | N54 | K50x18 | 3.5 Nm |
| 3AZ Camshaft sensor to cylinder head | N54 | M6x16 | 8 Nm |
| 4AZ Crankshaft sensor to crankcase | N54 | M6x16 | 8 Nm |
| 5AZ Knock sensor to crankcase | N54 | M8x30 | 21.5 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.