Having problems with your 2004 BMW 3 Series ?
I have a 2004 bmw 325i and it has a real ruff idle with a clacking noise it sounds like it has a vaccume leak and it will not click into gear. one thing i do no there is a bal valve cover
Compression test engine to check top end for problems(clacking noises could mean low oil pressure or level or bad lifters etc). Have the engins smoke tested for any vacuum leaks
Repair Help & Product Troubleshooting for 2004 BMW 3 Series
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