[orha12]

Hi i have BMW 316i, 1.6L.
I hear this strange sound sometimes.
When the sound comes up, if i shut down the engine and turn on again, the sound is gone.
Sometimes i hear the sound and sometimes not.
The car now has 97,000 KM.

Next week i will put my car for the yearly service, to change Oil, Oil filter, AC filter, Air filter and Coils + Plugs.

Anyone here can tell me what is this sound?
https://youtube.com/shorts/ddLLg2a4qDU?feature=share

[BMWILUVU]

Would help if you put the phone near the source of the sound and held it there. I think I hear something but it could be your phone moving around.

[orha12]

Sorry, but it's not my phone.
It's the engine sound. It's like "whistle" sound.

[orha12]

Update:
When i start to hear the sound, i press the throtle just a bit (parking gear, 2500 rpm) and the sound disappear.

[njdangelo]

Pulley, or tensioner, or vacuum leak. Those are my guesses.

[Billfitz]

Since you're taking it in for service anyway have the garage figure it out. Add serpentine belt to the list in the previous post.

[orha12]

So i was at the service, the guy there didn't hear anything.
Well, i don't know what to do, i didn't heard the sound about a week.
Is there any way to change the serpentine belt alone?

[Billfitz]

https://www.google.com/search?q=BMW+...YMJBS4Q4dUDCA0

[orha12]

Update:
I didn't have much time until now, so i got the kit installed today.
The kit includes the belt, tensioner and pulley.
Fits perfect and took me 20 minutes.
Thank you guys!

[orha12]

Update:
Yesterday i heard the noise once again, but in much lower volume.
I'm starting to think that it's not the serpentine belt.
I replaced the belt, pully and tensioner.

What should i need to check?

[orha12]

Bump

[orha12]

Anyone please?
I just want to solve this issue

[orha12]

Update for those who have this issues:
After checking all, I'v found that the pcv breather membrane is dead.
Replaced that and everything is perfect.

[snenji]

bearing damage

[orha12]

Read the comments.
I'v already solved it.

[der_schmidt]

Hi there,

the thread name just fits perfect to my problem.

Short introduction:
I recently found that I could no longer run the electronic oil level gauge. This always broke off exactly at 17%. A day later the message in the display "Engine - continue driving possible. Have it checked by service partner." (I don’t know the exact wording in english, because I am from Germany.)
The result at BMW was that the oil pump was defective. It could no longer maintain a constant pressure and a solenoid valve in the pump unit was also broken. Chain and sprocket for the oil pump should be replaced together. In the course of this I also had the upper timing chain measured and it was also slightly outside the tolerance.
That's why I had them exchanged at the same time. Everything was open anyway. All in all a pretty expensive fun.

My Problem now:
Since the repair was completed, the engine has basically run perfectly, but I can't get used to a different, new sound. It sounds like a howl or sing. It is loudest at around 2000 rpm.
I don’t think it is a normal sound for a N13B16 engine.

I've been to BMW twice. Unfortunately without success. Nobody seems to hear what I mean. Is there anyone here who has an idea. Here is a link to the sound file.

http://sndup.net/nh3p

Thanks for your help!

[fe7565]

Originally Posted by der_schmidt

Hi there,

the thread name just fits perfect to my problem.

Short introduction:
I recently found that I could no longer run the electronic oil level gauge. This always broke off exactly at 17%. A day later the message in the display "Engine - continue driving possible. Have it checked by service partner." (I don’t know the exact wording in english, because I am from Germany.)
The result at BMW was that the oil pump was defective. It could no longer maintain a constant pressure and a solenoid valve in the pump unit was also broken. Chain and sprocket for the oil pump should be replaced together. In the course of this I also had the upper timing chain measured and it was also slightly outside the tolerance.
That's why I had them exchanged at the same time. Everything was open anyway. All in all a pretty expensive fun.

My Problem now:
Since the repair was completed, the engine has basically run perfectly, but I can't get used to a different, new sound. It sounds like a howl or sing. It is loudest at around 2000 rpm.
I don’t think it is a normal sound for a N13B16 engine.

I've been to BMW twice. Unfortunately without success. Nobody seems to hear what I mean. Is there anyone here who has an idea. Here is a link to the sound file.

http://sndup.net/nh3p

Thanks for your help!

Recommend to start a new thread.

[der_schmidt]

Originally Posted by fe7565

Recommend to start a new thread.

Done: https://f30.bimmerpost.com/forums/sh...1#post29994011