13 54 030 Removing and installing/sealing throttle assembly (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.

Observe instructions for disconnecting and connecting battery.

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

Remove intake filter housing.

Remove intake hose completely (between intake filter housing and throttle assembly).

Disconnect following plug connections:

Resonance flap
Idle-speed control valve

Fig 1: Disconnecting Resonance Flap & Idle-Speed Control Valve

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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 Switch & Oil Temperature Switch

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Releasing Plug & Detaching From Tank Venting Valve

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Release screws (1) on cable duct mounting.

Fig 4: Releasing Cable Duct Mounting Screws

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E46 only:

Unclip fuel lines and cable of oil level sensor out of holder (1) on oil dipstick guide tube.

Detach oil return line (2) from oil dipstick guide tube.

Release screw (3) and remove oil dipstick guide tube.

Installation:

Replace sealing ring for oil dipstick guide tube.

Fig 5: Releasing Screw & Removing Oil Dipstick Guide Tube

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All cars:

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

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

Fig 6: Removing Throttle Assembly

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Installation:

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

Fig 7: Locating Sealing Ring Between Throttle Assembly & Intake Manifold

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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.