13 54 030 Removing and installing/sealing the throttle body (N14, N18)

IMPORTANT: Charge air hoses with clamp fastenings must be installed dry and free from grease!
Sealing surfaces and connecting branches must be dry and free from grease.
If charge air hoses with clamp fastenings are not installed dry and free from grease, this may result in exhaust turbocharger failure!

Necessary preliminary work:

Read out the fault memory of the DME control unit.
Check stored fault messages.
Switch off ignition.
Remove SOUND GENERATOR .

Release hose clamps (1) and detach charge air hose (2).

Installation note:

Install charge air hose (2) dry and free from grease.

Connecting branch on throttle valve must be dry and free from grease.

Position hose clamps (1) again correctly and ensure sufficient spacing to adjacent components.

The spacing between hose clamp and brake line must be 15 mm.

Fig 1: Identifying Charge Air Hose And Clamps

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws and carefully feed out throttle body (1) towards top until connector is accessible.

Tightening torque 13 54 1AZ .

Unlock connector and disconnect.

Detach cable strap.

Remove throttle valve assembly.

Fig 2: Locating Throttle Body Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace sealing ring (1).

Fig 3: Identifying Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault messages.
Clear diagnostic fault entries from fault memory.