I think there's something wrong with my turbos.

[Jeef Beef]

I noticed today when driving with windows down that there is this whining noise coming from my car when I accelerate through 1st and 2nd gear. Beyond that the wind noise is too much to hear it. The noise is VERY noticeable in enclosed places like carparks.

I know for certain that this noise was not present before. It's sort of a high pitched whine when the turbos start to spool up. There's no loss in performance, but I'm too afraid to got WOT now. Time for dealership visit?

[Taymaishu]

Originally Posted by Jeef Beef

I know for certain that this noise was not present before. It's sort of a high pitched whine when the turbos start to spool up.

I don't think it's a problem

Anyway, tongue-in-cheek aside, is it possible to get some video/audio of it?

[BMWRX]

Does it happen when you rev hard then you can here it winding down? If so, I had the same concern but it's just how our turbos sound. I was expecting more of the usual turbo whistle but ours whine for some reason (maybe complaining on behalf of the engine about being starved by the fuel pumps ).

http://www.1addicts.com/forums/showt...ighlight=turbo

[Zuzu]

Originally Posted by BMWRX

Does it happen when you rev hard then you can here it winding down? If so, I had the same concern but it's just how our turbos sound. I was expecting more of the usual turbo whistle but ours whine for some reason (maybe complaining on behalf of the engine about being starved by the fuel pumps ).

http://www.1addicts.com/forums/showt...ighlight=turbo

+1

[Jeef Beef]

Originally Posted by Taymaishu

I don't think it's a problem

Anyway, tongue-in-cheek aside, is it possible to get some video/audio of it?

I'll have to find a friend to help me record it.

Originally Posted by BMWRX

Does it happen when you rev hard then you can here it winding down? If so, I had the same concern but it's just how our turbos sound. I was expecting more of the usual turbo whistle but ours whine for some reason (maybe complaining on behalf of the engine about being starved by the fuel pumps ).

http://www.1addicts.com/forums/showt...ighlight=turbo

It happens even if I'm accelerating on very light throttle and not on the wind down. The sound occurs when the turbos just begin to spool up. I think I know the wind down noise you are talking about, this sound is common to all I6 BMW engines.

I've had my DCIs for over 9 months now and it's definitely not the turbo whistle or induction noise. Sorta even sounds like a supercharger in first gear. This was definitely not present before the drive day last Sunday. That thread you linked me SEEMS to address my concerns but I posted this same topic in the "Engines" section and all the Americans are saying that it's happened to them and my turbos are on the way out

EDIT: found a video. My car sounds similar to the video at around 20 seconds, but not when I'm just sitting there and revving. It's the sound that comes out when I drive.

[WOPALX]

Originally Posted by Jeef Beef

I noticed today when driving with windows down that there is this whining noise coming from my car when I accelerate through 1st and 2nd gear. Beyond that the wind noise is too much to hear it. The noise is VERY noticeable in enclosed places like carparks.

I know for certain that this noise was not present before. It's sort of a high pitched whine when the turbos start to spool up. There's no loss in performance, but I'm too afraid to got WOT now. Time for dealership visit?

Jeff,

I've had wine like your describing for about 40,000 klms. You should find that going back to the stock air box will about 90% eliminate the noise.

BMW Aus when I took the car to them for analysis (stock air-box) indicated it was the transmission & no warranty due to the LSD (although I never really tried to hide my tune had they wanted to ping me on that).

I had the AT people the $tealership use take the car for a drive, the owner of the workshop within 500m said "sounds like noisy turbo's to me".

I've serviced the tranny to be sure and it's fine. I've driven another 25K and the whine is no worse, car still runs like a cut snake. Wastegates are a little more rattly when the tune is on, quiet as when running stock.

As I'm well out of warranty I purchased a set of cores which are with Rob Beck. Once his first batch of upgraded snails are installed without issue by the 15 or so people buying the first batch I'll have him send me a set. Not looking for max power but a good overall bump + better reliability.

Cheers,

Stuart

[recce]

It could be the following:
1. Pully bearing
2. Leak exhaust near turbo
3. Leak turbo inlet pipe

[555]

Originally Posted by Jeef Beef

I'll have to find a friend to help me record it.



It happens even if I'm accelerating on very light throttle and not on the wind down. The sound occurs when the turbos just begin to spool up. I think I know the wind down noise you are talking about, this sound is common to all I6 BMW engines.

I've had my DCIs for over 9 months now and it's definitely not the turbo whistle or induction noise. Sorta even sounds like a supercharger in first gear. This was definitely not present before the drive day last Sunday. That thread you linked me SEEMS to address my concerns but I posted this same topic in the "Engines" section and all the Americans are saying that it's happened to them and my turbos are on the way out

I have had this noise now for months....

It is still there and giving me the absolute irrits!!

So far replaced:

(The car has gone back to the dealer that many times now... BMWAUS has been out to look at it etc..)

Front Turbo
Rear Turbo

All the piping hot side
Intercooler
Boost Module
Airbox (yes! I know)

Noise is still there

I think it may be something else altogether... (it sounds to me like a PS pump whine) it can't be exhaust.. as the noise is the same for all ppl that have this problem..

EDIT: found a video. My car sounds similar to the video at around 20 seconds, but not when I'm just sitting there and revving. It's the sound that comes out when I drive.

If you press in the clutch and bring it up juuuust a tiny fraction, then rev the car (rather than in neutral) you will notice that it's there, it's almost like you have to load up the engine...


OVER IT!

Not to mention that the long cranks are coming back... and excessive back fires...

[banglemangle]

Originally Posted by 555

I have had this noise now for months....

It is still there and giving me the absolute irrits!!

So far replaced:

(The car has gone back to the dealer that many times now... BMWAUS has been out to look at it etc..)

Front Turbo
Rear Turbo

All the piping hot side
Intercooler
Boost Module
Airbox (yes! I know)

Noise is still there

I think it may be something else altogether... (it sounds to me like a PS pump whine) it can't be exhaust.. as the noise is the same for all ppl that have this problem..



If you press in the clutch and bring it up juuuust a tiny fraction, then rev the car (rather than in neutral) you will notice that it's there, it's almost like you have to load up the engine...


OVER IT!

Not to mention that the long cranks are coming back... and excessive back fires...

JOY

[Jeef Beef]

Originally Posted by WOPALX

Jeff,

I've had wine like your describing for about 40,000 klms. You should find that going back to the stock air box will about 90% eliminate the noise.

BMW Aus when I took the car to them for analysis (stock air-box) indicated it was the transmission & no warranty due to the LSD (although I never really tried to hide my tune had they wanted to ping me on that).

I had the AT people the $tealership use take the car for a drive, the owner of the workshop within 500m said "sounds like noisy turbo's to me".

I've serviced the tranny to be sure and it's fine. I've driven another 25K and the whine is no worse, car still runs like a cut snake. Wastegates are a little more rattly when the tune is on, quiet as when running stock.

As I'm well out of warranty I purchased a set of cores which are with Rob Beck. Once his first batch of upgraded snails are installed without issue by the 15 or so people buying the first batch I'll have him send me a set. Not looking for max power but a good overall bump + better reliability.

Cheers,

Stuart

Thanks Stuart! I went back to stock airbox on Sunday, if anything, the whine is now MORE noticeable since there's no wooshing sound from the intakes anymore

Originally Posted by recce

It could be the following:
1. Pully bearing
2. Leak exhaust near turbo
3. Leak turbo inlet pipe

Hopefully it's just a leak and is easily fixed.

Originally Posted by 555

I have had this noise now for months....

It is still there and giving me the absolute irrits!!

So far replaced:

(The car has gone back to the dealer that many times now... BMWAUS has been out to look at it etc..)

Front Turbo
Rear Turbo

All the piping hot side
Intercooler
Boost Module
Airbox (yes! I know)

Noise is still there

I think it may be something else altogether... (it sounds to me like a PS pump whine) it can't be exhaust.. as the noise is the same for all ppl that have this problem..



If you press in the clutch and bring it up juuuust a tiny fraction, then rev the car (rather than in neutral) you will notice that it's there, it's almost like you have to load up the engine...


OVER IT!

Not to mention that the long cranks are coming back... and excessive back fires...

DAAAMNNNN. Sounds like the turbo whine is the least of your worries.

[choppedliver]

I have this as well, I thought is was the cops at first (roof down). I only ever notice it when we drive out of the driveway and up the hill in our street in 2nd when the car is cold on light throttle. Never warm. Car still goes fine and given what people have changed to fix this I'm inclined to ignore it until something breaks or performance suffers.

B

[dh58]

I thought this was from the intake. When I tried the AFE intake the sound became more pronounced.

I fixed it by checking the connections on the intake. Inlet and outlet was the problem for me. When I tightened it up and made it flush then it was a lot less noticeable. However it sounded exactly like the video you posted.

I could hear it even inside the car lol

[choppedliver]

Originally Posted by dh58

I thought this was from the intake. When I tried the AFE intake the sound became more pronounced.

I fixed it by checking the connections on the intake. Inlet and outlet was the problem for me. When I tightened it up and made it flush then it was a lot less noticeable. However it sounded exactly like the video you posted.

I could hear it even inside the car lol

Interesting, my car is completely stock. Perhaps something is loose, I'll have to check!

B

[MikeVictor]

Originally Posted by choppedliver

I have this as well, I thought is was the cops at first (roof down). I only ever notice it when we drive out of the driveway and up the hill in our street in 2nd when the car is cold on light throttle. Never warm. Car still goes fine and given what people have changed to fix this I'm inclined to ignore it until something breaks or performance suffers.

B

the cops comment brought back some memories, as the vf34 turbo I installed on my Subaru had an uncanny knack of making a siren-like noise as it spooled up

[mcmn]

the dp clamps on to the turbo may be loose..? Considering you've got AR DPs might be worth checking out.

[BMWRX]

Originally Posted by mattyv

the cops comment brought back some memories, as the vf34 turbo I installed on my Subaru had an uncanny knack of making a siren-like noise as it spooled up

sorry to read your car is giving you grief, Jeff.

I miss my VF34...

[BBK]

Sounds like the sound I get because of the DPs. But I don't think Jeef had DP's at this time?

[MikeVictor]

Originally Posted by BMWRX

I miss my VF34...

very cool as I wrote that I was actually wondering what you used to run in your WRX.

[RaihaX]

I heard a siren noise may potentially mean that your turbo is about to die?

OT but I am getting this annoying brake squealing !!!

[denfion]

Originally Posted by RaihaX

I heard a siren noise may potentially mean that your turbo is about to die?

OT but I am getting this annoying brake squealing !!!

me too... very loud.... a good reason why I shouldn't stop my car at traffic light..

[RaihaX]

Originally Posted by denfion

me too... very loud.... a good reason why I shouldn't stop my car at traffic light..

yeah it just recently came up as well very very annoying

[MrBlonde]

My turbos are cooked, they've been noisy since the day I got the car and now they are starting to smoke too.