Intake Manifold: Service and Repair

Removing And Installing Intake Air Manifold

Special tools required:
- 13 5 280

Disconnect battery, to do so, proceed in accordance with instructions for disconnecting and connecting battery.
Remove air cleaner housing.
Remove throttle assembly.






Remove cover from fuel rail.
Detach line to brake booster from intake manifold.
Press ring downwards to expose line (1).
Detach crankcase ventilation valve from inspection hole cover.

Caution: Catch and dispose of fuel as it escapes.

Remove fuel line from fuel rail; disconnect quick-release coupling for this purpose.
Detach plug connector from intake air temperature/manifold air pressure sensor (TMAP).
Detach knock sensor plug from fuel rail wiring harness.
Disconnect tank vent link and unclip at fuel rail.
Disconnect vacuum line from intake manifold.






Remove retaining screws of fuel rail, then remove fuel injectors and fuel rail from manifold. Seal off fuel pressure regulator with special tool 13 5 280 . Support fuel rail with a suitable piece of wire or manufactured rod.

Remove dipstick.





Release manifold screws (5-1) and remove manifold.

Unclip coolant line below manifold.

Installation:
Check gaskets on all cylinders and replace if necessary.

Tighten down bolts in sequence (1-5).
Tightening torque; M8 26 Nm