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 906 (FUEL SYSTEM - TIGHTENING TORQUES)62 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 X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
SENDERS FOR CONTROL UNIT - TIGHTENING TORQUES
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Temperature time switch | M21 / M51 | 18 Nm | ||
| 2AZ Coolant temperature sensor | 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 on holder | M51 / M41 | 4 Nm | ||
| Charge-air pressure sensor on intake manifold | M47 | 5 Nm | ||
| 6AZ Twin temperature sensor (4-pin plug-in connection) | M41 / M43 / M44 / S50 / S52 / M52/ M57 / M67 / M62 / M73 | 13 Nm | ||
| 7AZ Air-mass sensor on lower section of air filter housing | M51 | 3.5 Nm | ||
| Air-mass flow sensor to cylinder head cover | M47 / M47TU / M57 / M57TU | 4.5 Nm | ||
| 8AZ Pulse generator, camshaft to cylinder head cover | M57 | 4.5 Nm | ||
| M47TU / M57TU | 3.5 Nm | |||
| 9AZ Intake neck on air-mass flow sensor | M47 | 9 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.