13 62 531 Replacing coolant temperature sensor (M52TU, M54)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

Turn off ignition.

Installation location:

Coolant temperature sensor (1) is fitted below intake air manifold in cylinder head of cylinder 6.

Remove intake air manifold.

Fig 1: Locating Coolant Temperature Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Unscrew temperature sensor.

Installation:

Tightening torque. Refer to FUEL SUPPLY SYSTEM - TIGHTENING TORQUES .

Check coolant level, top up coolant if necessary.

Fig 2: Disconnecting Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Read out fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.