13 54 020 Removing and installing/sealing right throttle body (N74): Notes

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Necessary preliminary tasks:

Turn off ignition
Remove right INTAKE FILTER HOUSING
Remove ACOUSTIC INSULATION for bulkhead on right

NOTE: Graphic shows the left side, the procedure for the right side is identical.

Release clamp (1)

Tightening torque: see 5AZ in 13 71 AIR INTAKE SYSTEM

Fig 1: Identifying Throttle Valve Assembly Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Graphic shows the left side, the procedure for the right side is identical.

Release screws (1).

Tightening torque: see 3AZ in 13 54 THROTTLE AND ACTUATOR

Unfasten screws (2).

Tightening torque: see 2AZ in 13 54 THROTTLE AND ACTUATOR

Fig 2: Identifying Air Duct And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug on throttle body and disconnect.

Unlock and disconnect tank vent line from throttle body.

Detach air duct (3) together with throttle body toward stop and remove.

Installation:

Check seals. Replace damaged seals.

Close off charge air pipe with special tool (1) 11 5 220.

Fig 3: Closing Off Charge Air Pipe Using Special Tool 11 5 220

Courtesy of BMW OF NORTH AMERICA, INC.

Only if replacing throttle body:

Release screws (1).

Tightening torque: see 1AZ in 13 54 THROTTLE AND ACTUATOR

Remove throttle body from air duct.

Modify air duct and holder (2) to new throttle body.

Fig 4: Identifying Air Duct Holder And Screws

Courtesy of BMW OF NORTH AMERICA, INC.