13 71 000 Removing and installing/replacing the intake silencer housing (N14, N18)

IMPORTANT: Gaiter and 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 gaiter and charge air hoses with clamp fastenings are not installed dry and free from grease, this may result in exhaust turbocharger failure!

Necessary preliminary tasks:

Switch off ignition.

Loosen screw.

Tightening torque 13 71 4AZ .

Fig 1: Locating Screw

G04790030

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen the clamp and detach the gaiter (1) from the intake silencer housing (3).

Installation note:

Install gaiter (1) dry and free from grease.

Connecting branch on intake silencer housing must be dry and free from grease.

Lightly press the intake pipe (2) at the latch mechanisms and pull off from intake pipe on intake silencer housing (3).

Remove the intake silencer housing (3) together with the intake pipe.

Fig 2: Identifying Gaiter, Intake Pipe, Intake Silencer Housing And Hose Clamp

G04790031

Courtesy of BMW OF NORTH AMERICA, INC.

With vehicles that have a hot film air mass meter :

Disconnect plug connection.

Replacement:

Remount HOT FILM AIR MASS METER .