low boost no codes
I Love e90 post
The n54 low bost problem/ vacuum line fix at front of engine made my car run perfect.
The dealer would not adrdess my poor performanc issues untill they had a engin fault code.
Had they replaced the vacuum lines they would have charge 800 - 2000 dollars.
Hoses are not covered under extended warrenty.
My cost was 15 min of time and 5 dollers for tubing.