[onebadmofo]

When the car is cold and during acceleration I hear very pronounced whine from the engine bay that depends on engine load, not the RPM's. Sounds a lot like turbo whine, and believe me, I know how bad turbo sounds.

Thing is as soon as the car is warmed up I don't hear anything. Car boosts and drives just fine. The whine only happens when the car is cold.
It's 07 335 with 63k miles and out of warranty

Edit:
Video here http://www.e90post.com/forums/showpo...3&postcount=29

[Express]

its probably your turbos. drive it off a cliff or sell it

[IancoleTX]

hey, if it is, just consider a heavenly sign that you need to upgrade turbos

[Alessandro]

i think you should contact Rob Beck

[maswastage]

I think turbo whine is normal when the engine is cold. Ever noticed how the engine itself sounds different when it's cold? Same concept with the turbos. Unless it actually sounds like something is wrong, I wouldn't be too alarmed.

[M340i Pride]

sounds like its normal. unless you feel any deficiencies in acceleration it should be fine to hear a bit of a noise from turbo. afterall, its forced induction (very high one at that!) and you are bound to hear some air noise, just like your a/c will have noise at your home if you turn them on!

see how it feels rather than how it sounds...

[5soko]

Mine does the same thing when cold, goes away when warm, this is somewhat normla to an extent. If you have a aftermarket tune, you should do some logs and send them to your tuner for evaluation to see if your holding boost etc.

[JJGriss]

Mofo, any updates?

[onebadmofo]

Well no updates really. I tried to take a video last night but for some reason audio wasn't recorded. I'll try to dig around in the engine bay today after work and see if I can check the shaft play on turbos. For now I switched Procede to map 0 and avoid boosting when engine is cold.

I'm taking it for a check-up this Saturday. If BMW denies 'good will' then I'm gonna either trade the car for a Hyundai in or put some upgraded turbos. But with mileage like that not sure if the upgrade worth it, who knows what's gonna be next.

[Rydicule]

Originally Posted by onebadmofo

But with mileage like that not sure if the upgrade worth it, who knows what's gonna be next.

It's comments like this that make me wish I had read boards like this before buying my car...

I don't know when 63k miles became a "high mileage car", but generally I've only heard comments like this from cars that have 150k+ miles on them...

[timmahh]

If you lived in California the turbocharger is covered for 7 years / 70k miles by the California Emission Warranty Parts..

(Modification voids it of course)

[gboop]

Originally Posted by Rydicule

It's comments like this that make me wish I had read boards like this before buying my car...

I don't know when 63k miles became a "high mileage car", but generally I've only heard comments like this from cars that have 150k+ miles on them...

Are you having major issues with YOUR car? Is your engine modified? If you visited car forums before buying ANY car, you would end up never buying anything. Message boards amplify the negatives.

[jaco]

mine dont make any noise when the car is cold.

[Snow King]

Originally Posted by timmahh

If you lived in California the turbocharger is covered for 7 years / 70k miles by the California Emission Warranty Parts..

(Modification voids it of course)

I've always wondered about this and how the warranty works. I've searched on google as well without any luck. Lets say you blow your turbos at 5 years 60k miles (past original warranty). If you take it into the stealership, will they say, "hey good news since you are in California, your turbos are covered till 7yr/70k miles, lets get them replaced right away on the house!"

Or will the stealership say you're outta luck and then end up having to file some sort of claim with the government/dmv to get the replacement covered under warranty....6-9 months later after the paperwork has been processed?

[timmahh]

Originally Posted by hchaniar

I've always wondered about this and how the warranty works. I've searched on google as well without any luck. Lets say you blow your turbos at 5 years 60k miles (past original warranty). If you take it into the stealership, will they say, "hey good news since you are in California, your turbos are covered till 7yr/70k miles, lets get them replaced right away on the house!"

Or will the stealership say you're outta luck and then end up having to file some sort of claim with the government/dmv to get the replacement covered under warranty....6-9 months later after the paperwork has been processed?

I'm not exactly sure how it works, but it's clearly defined in the warranty section of the booklet that the turbocharger, being part of the emissions system, IS covered [in Cali]. I'm sure you could easily file a complaint against the dealership with C.A.R.B. saying the dealer won't honor the warranty on my emissions system and it would get taken care of with the quickness.

[Rydicule]

Originally Posted by gboop

Are you having major issues with YOUR car? Is your engine modified? If you visited car forums before buying ANY car, you would end up never buying anything. Message boards amplify the negatives.

I do read a number of different boards... but none where people are so afraid of the 60k mark as on BMW boards.


I don't know why

My car is at 55k and is still going like a champ... if something breaks I wouldn't hesitate to fix it except that more often than not... people here seem to think that 60k is the magic number where the car turns into a pile of scrap.

[Philz BMW]

Originally Posted by express705

its probably your turbos. drive it off a cliff or sell it

moron.

[timmahh]

Originally Posted by Rydicule

I do read a number of different boards... but none where people are so afraid of the 60k mark as on BMW boards.


I don't know why

My car is at 55k and is still going like a champ... if something breaks I wouldn't hesitate to fix it except that more often than not... people here seem to think that 60k is the magic number where the car turns into a pile of scrap.

Unicorn poop, which is used to hold BMWs together, fails after about 60k miles.

[Jeff@TopGearSolutions]

My car always does this when its cold.

FYI I have 17K miles LOL

[Rydicule]

Originally Posted by timmahh

Unicorn poop, which is used to hold BMWs together, fails after about 60k miles.

oic.





Makes sense.

[lpphreakx06]

Master Tech at my local BMW told me this noise was the transmission :shrugs:

[pwhipple06]

I couldn't resist...