[WRX-335]

Hey guys i need someone with alot of knowledge on BMW to help me out here.
In the morning when i start the 335i its cold and when it starts it has this very
vicious rattle coming from the engine is that normal?

Check engine light comes on when doing over
120km in sport mode, what can cause this problem?
and how can i fix it?

Also what else is commin to break/stuff up
on the e90 225i M-sport?

Cheers

[naynay]

start by changing your spark plugs. it could be a whole host of things. my 335 was going to limp mode after putting in my JB4. changed the spark plugs and its been fine ever since. it could also be your high/low pressure fuel pump. injectors or coil packs. but start with the spark plugs and see how you go.

[WRX-335]

Alright thanks mate, i checked over the engine last night for like 5 minutes i checked the vacuum lines they were all fine ill check tonight.
I am going to get a diagnostics report done just to see where the fault is hopefully its nothing major. :/