13 54 030 Removing and installing/sealing throttle assembly (S54): Installation:

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.

Check O-rings, replace if necessary.

When fitting, coat all O-rings with lubricant SAE 90.

Fig 1: Identifying O-Rings

G03198719

Courtesy of BMW OF NORTH AMERICA, INC.

Remove pulse generator for inlet camshaft.

Unclip pull rod (1) for throttle actuator on throttle side.

Fig 2: Unclipping Pull Rod

G03198720

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw connection of throttle assemblies.

Remove throttle assemblies.

Fig 3: Removing Throttle Assemblies

G03198721

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean sealing surfaces (1). Note correct position of adapter sleeves (2).

NOTE: For a better overview, only a removed throttle assembly is shown.

Fig 4: Cleaning Sealing Surfaces

G03198722

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean sealing surfaces on cylinder head.

Replace all O-rings (1) in cylinder head.

Fig 5: Replacing O-Rings In Cylinder Head

G03198723

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

Installation:

Read out fault memory of control unit of Digital Motor Electronics (DME).

Check stored fault messages.

Rectify faults.

Now clear the fault memory.