13 62 511 Removing and installing/replacing charge-air temperature sensor (N57 D30 O/T 1)

Necessary preliminary tasks:

Read out fault memory of the DME control unit, work through test plans if necessary.
Switch off ignition.

Release screw (1).

Partially loosen acoustic cover on the front (2).

Fig 1: Identifying Acoustic Cover And Screw

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Unlock connector (1) and remove.

Release screws (2) on throttle valve assembly.

Tightening torque 13 54 1AZ .

Release clamp (2).

Remove throttle body from the pressure pipe and thread out to the side until the connector can be reached at the charge-air temperature sensor.

Installation note:

Replace gasket at mixing tube for intake air.

Fig 2: Identifying Throttle Valve Assembly, Connector And Screws

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Unlock connector (1) from charge-air temperature sensor (2) and pull off.

Fig 3: Identifying Intake Air Temperature Sensor Connector

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IMPORTANT: The lock must be unlocked for removal of charge-air temperature sensor!
If the lock is not unlocked, the retaining lug on charge-air temperature sensor wears.
If the retaining lug is damaged, the charge-air temperature sensor can fall out of the pressure pipe.

Fig 4: Locating Charge-Air Temperature Sensor

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Open the lock with a suitable tool (1).

Rotate charge-air temperature sensor (2) anticlockwise by 90° and pull out sensor straight.

Installation note:

Check sealing ring.

Replace damaged sealing ring.

Fig 5: Rotating Charge-Air Temperature Sensor

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NOTE: Clear diagnostic fault entries from fault memory.

Reassemble the vehicle.