Quote:
Originally Posted by ciorex
Hi Everyone, I do have a rattling noise starting in around 3000 rpm moving up to 4000rpm range on a soft acceleration.
The car I just bought it 2 days ago with 59k miles on the clock, engine is new changed 15000 miles ago and rod bearing they been done at Evolve 2000miles ago, very likely the previous owner didn’t had a clue that the engine is brand new, I have the old bearings and they show a very little wear, you can barely see the copper. After I took the car from the dealer Friday afternoon I did spotted the noise in first 10min, the owner did agreed about the noise, after I did drove 120miles back the engine level was showing a bit low the sign to top up did come back again in the next morning after driving another 60miles.
E92 M3 - rattling noise - inside cabin
E92 M3 - motor ratling noise
video reving and rattle noise
Please review amd let me know how bad might be, Many Thanks! |
I have a similar noise on mine. Here's my thread linked below with sound clips. I replaced both timing chain tensioners, and all four Vanos solenoids without success. Chances are you may have a broken engine mount according to feedback on my thread. My car has Vibra-Technics engine mounts which are apparantly known to fail. I plan to inspect them soon and get them replaced. Yours may have a loose engine mount nut which can also cause a similar noise due to resonance at certain rev ranges. See link.
https://www.m3post.com/forums/showthread.php?t=2142775