BMW 328i

Maintenance

Replace Oil Filter Housing Gasket

Easier to do w/ intake manifold off

Tips:

Steps:

Unplug battery negative (10mm)
Remove hood (10mm)
remove air filter cabin, cowl, engine cover
Remove strut bracing (T14 bottom, T18 Top) (74ftlbs)
Remove Intake box and hoses
Remove power steering reservoir (10mm)
- put it to the side, no need to disconnect
Unplug a bunch of stuff on the intake including DISA valve connections
- o2 sensors on top
- alternator cable
- PCV hose to VC
- throttle body cable
Remove throttle body (10mm)
- Clean
Remove junction box (optional)
- torx bit on each side to remove whole bracket (t27)
- or.. PB Blaster and flat head screwdriver to pry it off. Don't break clips.
Remove O2 sensors. Label before unplug
- push cable down through intake manifold
- pull out of the way from the back
Remove PCV hose at firewall
- release clips
Remove fuel hose bracket @ firewall side (T25)
Remove Manifold
- 11mm bolts, crack then remove by hand 11ftlb
- Break free
- Unplug cables underneath
- Remove pvc to oil pan hose

Manifold Delete complete

Clean manifold interface
Transfer junk from old manifold to new manifold
- sensors
- brackets
- PCV breather hose
Replace/Insert manifold gaskets
Transfer L shaped PCV hose
Plug in PCV hoses to housing + manifold
- third manifold PCV small hose comes from junction box

Manifold is ready to go in the car.

Find DISA connectors
- Long goes on inside, short goes on outside
Get O2 sensors out of the way
Struggle for a bit as you wedge everything in.
Start plugging things in before fully inserted
- Remove dust covers from DISA connectors
- plug everything else in
Everything is in reverse from here out.
- Cross pattern on bolt tighten
- snug is good enough