13 62 531 Replacing coolant temperature sensor (N62)

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of scalding! Only perform these tasks on an engine that has cooled down.

Necessary Preliminary Tasks:

Read out fault memory of DME control unit; if necessary, work through test schedules.
Switch off ignition.
E65 only. E66: Remove design cover.

Recycling:

Catch and dispose of escaping coolant.

Observe country-specific waste-disposal regulations.

Coolant temperature sensor is mounted on water pipe at front.

Unlock plug (1) and remove.

Release temperature sensor (2).

Installation:

Tightening torque, refer to 13 62 2AZ in FUEL SYSTEM - TIGHTENING TORQUES - 545I (4.4L) E60/N62 .

Vent cooling system and check for leaks. Refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62, N62TU) .

If necessary, top up coolant.

Fig 1: View Of Temperature Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Now clear the fault memory.