13 62 531 Replacing coolant temperature sensor (N55)

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WARNING: Risk of scalding!
Only perform this repair work on an engine that has cooled down.

Recycling

Catch and dispose of escaping coolant.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks :

Read out fault code memory of the DME control unit.
Switch off ignition
Remove IGNITION COIL COVER

NOTE: Coolant temperature sensor is mounted on cylinder head at front.

Variant for hot countries only

Release screw (1).

Tightening torque 17 22 4AZ

Remove engine oil pipe and set aside.

Catch and dispose of emerging engine oil.

Fig 1: Identifying Engine Oil Pipe Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Unfasten coolant temperature sensor (2).

Installation note:

Tightening torque 13 62 5AZ .

If necessary, top up COOLANT .

Check COOLING SYSTEM for leaks.

Fig 2: Identifying Coolant Temperature Sensor And Connector

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault messages.
Delete fault memory.