11 61 050 Removing and installing intake air manifold (M54)
WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Instructions for disconnecting and connecting battery
.
Disconnect negative battery lead.
- Remove engine cover .
- Remove left tension strut . See 51 23 265 REMOVING AND INSTALLING/REPLACING LEFT AND RIGHT GAS STRUT SHOCKS .
- Remove intake filter top section .
- Remove intake pipe .
- Remove sound generator .
IMPORTANT:
Do not mix up oxygen monitor sensors for cylinders 1 to 3 and 4 to 6 at plug connection to wiring harness. Mark plug connections.
Unclip plug connections (1) from holders.
Press lock and detach vent hose.
Remove clips (1).
Detach terminal strip (3) from fuel injectors and place to one side.
NOTE:
For a better overview, this work step is shown on an engine that has been removed.
IMPORTANT:
Catch and dispose of fuel as it escapes.
Instructions for removing and installing fuel hoses.
Unclip fuel line (1) from holder (2).
Unlock and detach fuel line (1).
Disconnect plug connection (1) on tank venting valve.
Remove tank venting valve from retainer (2) on manifold.
Press lock and detach return line from oil dipstick guide tube.
Unclip plug connection (1) for knock sensors from holder.
Release nut (2) on manifold support.
Release nuts on manifold.
NOTE:
Engines with air injection:
Detach vacuum line on reverse side of intake air manifold.
Detach vacuum line on reverse side of intake air manifold.
Remove intake air manifold.
Installation:
Check gaskets on all cylinders and replace if necessary.