13 54 030 Removing and installing/sealing throttle assembly (M54)

Turn off ignition.

Observe instructions for disconnecting and connecting battery. Refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Disconnect battery negative lead from battery and lay to one side.

Remove intake filter housing. Refer to 13 71 000 REMOVING AND INSTALLING INTAKE FILTER HOUSING (M54) .

Remove intake hose completely (between intake filter housing and throttle assembly). Refer to 13 54 250 REPLACING INTAKE HOSE (BETWEEN AIR-MASS FLOW SENSOR AND CONNECTING PIECE) (M54) and 13 54 251 REPLACING INTAKE HOSE (BETWEEN CONNECTING PIECE AND THROTTLE ASSEMBLY) (M54) .

Disconnect following plug connections:

Resonance flap
Idle-speed control valve.

Fig 1: Disconnecting Plug Connections On Resonance Flap And Idle Speed Control Valve
Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect following plug connections:

Oil pressure switch.
Oil temperature switch.
NOTE: For purposes of clarity, the power steering pump supply tank is not shown.

Fig 2: Disconnecting Oil Pressure And Oil Temperature Switches
Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug (1) and detach from tank venting valve.

Fig 3: Unlocking Plug From Tank Venting Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) on cable duct mounting.

Fig 4: Removing Cable Duct Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

All Cars:

Unlock plug (1) and detach from throttle assembly (3).

Release screws (2) and remove throttle assembly (3).

Fig 5: Locating Screws On Throttle Assembly

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing ring (1) between throttle assembly and intake manifold.

Fig 6: Identifying Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: A faulty throttle adjusts the adaptation values stored in the DME control unit. These adaptation values must be reset after the throttle assembly has been replaced.

Clearing Adaptation Values:

Connect DIS Tester.
Select vehicle type.
Select "DME Motor Electronics MS43", carry out individual brief test.
Continue with bottom right arrow.
The "Fault pattern selection" window appears. Select "Function selection" (bottom left).
The "Function and component selection" window appears:
- Select "Service functions".
- Select "Drive".
- Select "Digital Motor Electronics".
- Select "Reset adaptations".
- Select "Test schedule" (bottom left).
The "Test schedule" window appears. Select "Reset adaptations".
Continue with bottom right arrow:
For subsequent procedure, follow DIS instructions.

The new adaptation values are stored in the DME control unit after the engine is started for the first time.