PRE-RELEASE

Charge air pipe

Charge air pipe

To remove

Remove the upper engine cover.

Undo the bolt securing the bypass pipe at the turbocharger intake pipe.

Remove the charge air bypass valve from the charge air pipe.

Unplug the connector on the charge air pipe for the pressure/temperature sensor.

Undo the hose clips at the throttle body and charge air hose.

Man.: Detach the venturi hose from the charge air pipe

Unscrew the bolt securing the charge air pipe to the bracket on the cylinder head and remove the pipe. Cover the throttle body and charge air hose.

Important
If the charge air pipe is being replaced; first dismantle the pressure/temperature sensor. Then, fit it to the new charge air pipe. Apply petroleum jelly or the equivalent sparingly to the O-rings.

To fit

Remove the seal from the throttle body and delivery hose.

Carefully connect the charge air pipe to the throttle body and screw it to the bracket on the cylinder head.

Man.: Connect the venturi hose to the charge air pipe.

Important
Check the O-ring on the throttle body and replace if necessary. To facilitate fitting the O-ring, apply a thin layer of Vaseline or equivalent, part no. 30 06 665

Important
To reduce the risk of hoses mounted on the delivery side of the turbocharger coming loose due to low friction at high air pressure, the hoses and connecting pieces must be cleaned thoroughly before fitting. Use a rag dampened with 93 160 907 Motip Dupli cleaning agent to wipe clean inside the ends of the hoses. Clean the connecting pieces as well. If hose clips are rusty or damaged, they must be replaced so the correct clamping force is maintained.

Connect the charge air hose to the pipe. Tighten the hose clip and bolt on the cylinder head.

Plug in the pressure/temperature sensor connector.

Connect the bypass valve and tighten the bypass pipe on the turbocharger intake pipe.

(6 lbf ft)

Fit the upper engine cover.