|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
E90 Engine knock
|
|
10-26-2023, 04:08 AM | #1 |
Registered
0
Rep 1
Posts |
E90 Engine knock
Engine making weird noise on acceleration. Could it be the timing chain? Rod bearings? Vanos? Or something else?
Video with sound: https://youtube.com/shorts/7JXZ3rPy1Yw?feature=share |
10-26-2023, 09:56 AM | #2 |
Major
427
Rep 1,111
Posts |
Start by removing the serpentine belt and see if the noise goes away.
Also, get a mechanic's stethoscope to localize noises: https://www.amazon.com/s?k=mechanics..._ts-doa-p_2_11 |
Appreciate
0
|
10-26-2023, 01:24 PM | #3 |
Lieutenant
321
Rep 520
Posts |
Probably timing chain. Those 4 cylinder engines are really bad for stretched timing chains and broken chain guides. Get it fixed asap or you will end up with broken pieces of the plastic chain guide blocking the oil pickup and destroying the engine. Or get rid of the car and get a 6 cylinder one. The 4 cylinder engines are junk.
Remove the belt first and see if the noise goes as Marvin said. If the noise remains, then it will most likely be the chain. Last edited by NZE90; 10-26-2023 at 06:31 PM.. |
Appreciate
0
|
10-26-2023, 03:58 PM | #4 | |
Lieutenant
183
Rep 583
Posts |
Quote:
The e90 has a four cylinder option..??? The e90 has timing chain problems...?? Two things I've not heard |
|
Appreciate
0
|
10-26-2023, 04:11 PM | #5 |
First Lieutenant
115
Rep 369
Posts |
The 320i is a 4 cylinder. The N43 engine.
__________________
2007 E92 335i - MHD, Turbo Technics 19T's
2008 E60 535XI - JB4 2010 E92 335i - JB4, Borg Warner EFR 8374 |
Appreciate
0
|
10-26-2023, 06:30 PM | #6 |
Lieutenant
321
Rep 520
Posts |
Yes, 4 cylinders were only available in the European market. The N46 and direct injection N43. You're not missing much. They're shocking engines. It seems like the only good engines BMW made were the 6 cylinder ones. Sad they are all but gone.
|
Appreciate
1
crashoverride182.50 |
10-27-2023, 11:40 AM | #7 |
Lieutenant
183
Rep 583
Posts |
Thanks I always enjoy the opportunity to learn something.
|
Appreciate
0
|
Bookmarks |
|
|