13 63 555 Replacing throttle potentiometer (S54)

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

Interrogate fault memory of DME control unit.

Turn off ignition.

Unlock plug (1) and detach from throttle potentiometer (2).

Release screws (3).

Remove throttle potentiometer (2) from throttle assembly of cylinder 1.

Fig 1: Removing Throttle Potentiometer

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: After working on throttle system (throttle assembly, servomotor, potentiometer), carry out electronic throttle test with DIS Tester or MoDiC without fail:

Service functions
DME system checks
Function test

NOTE: Interrogate fault memory of DME control unit.

Check stored fault messages.

Rectify faults.

Then clear fault memory.