Audifan1

Hello,
I have a question.

When I start driving my car with cold engine (the first minutes), I hear my turbos working. The noise is rather quiet but in can be heard when all the electrics are off (radio, heater and etc.).

Is that normal? Or are those the very early signs of turbos going bad?

raddox

hearing them spool.

Audifan1

right?

audikillsbmw

As well as clouds of smoke coming out of your exhaust :P

S4_Cinci (I S'edTFA)

When turbos go bad, the sound is impossible to ignore. Your noise is normal.

A6turbo530

short answer, no. what you are hearing is the turbos building boost pressure. this is normal, and this is good. i think K03's deserve a little more respect that they get here on the forums, in general they are pretty resilient little turbos that can go 100,000 to 150,000+ miles with no issues. the problem is that when someones turbos do **** the bed, they come to AudiWorld for help and every one freaks out thinking theirs are next to crap out...

if you have to turn the radio and heater off just to hear the "noise" they are not blown.

heres a few links of truely blown turbos
a) notice the white smoke
b) notice the "dentist drill" sound, the clips barely do it justice, the drill sound is LOUD!

http://www.youtube.com/watch?v=XSEFUIcgOy0&feature=related

http://www.youtube.com/watch?v=RhOMppm-SLU

audikillsbmw

how to take care of them.

Audifan1

Thanks for the responses. Great Help. I appreciate it.

S4_Cinci (I S'edTFA)

stupidity and/or abuse. =)

boostbuddy

I wondered the same thing this morn - since noise goes away it's normal...