Stockholm996TT

I have noticed that my sound is not there at startup. After some driving the sound starts again. Is this any indication that it could be loose muffler bearings as suggested?

phxturbo

Gets louder when warm, and real loud when hot (track). It is the a valve in the resevoir unit and I was wondering if there was a less expensive way to repair than replacing the whole unit?

Thanks in advance for any suggestions
Chris

cgeorgan

This happened early last summer...but from what I remember it happened regardless of how long the car had been running.

Pierre

Quicksilver01, I'm arriving a bit late, but how has this issue evolved?

g8rdmd

+1... Just got a 2002 TT and notice the same rattle...

Pierre

FYI, I had a complete engine failure following a similar rattle. A screw on the intermediate shaft got loose and went into the timing chain. No good. Sportec had to rebuild the engine completely. Funny thing is that it can happen to any 996tt, regardless of the mileage. Even funnier thing is that the issue still hasn't been fixed on the 997tt...
More details about my case here.

nmlss2005

Uhm, this is interesting.
I have the same issue, in all gears: from 1000RPM to about 1800 light throttle application causes a *loud* bearing-like noise. The dealer told me it's normal, others told me it's normal... except my 03 doesn't do it, so it's not normal. After being reminded by Pierre about potential consequences, I am wondering about other explanations before having my mechanic - who incidentally maintains that I am just being paranoid - take apart the heads next week. Any insight?

DublinOh

"What about the casaphrator or the nobenlock? AS"

yes...sounds just like money in the dryer; expensive

Abakar

Hi guy,

I just bought a 996tt 2003 with 30k miles on it. Yes, I have the same rattleling noise. Took it to my friends at Vertex Automotive, Miami, Fl, I know they are knowledge people in 911's, and they told me it's normal on these cars. But I will not discard it as a loose baffle or catalitic inside the muffler.
I guy here posted that he change the moffler and the noise stopped.

Wachuko

I think he changed the muffler and could no longer hear it because of how loud the muffler sounded

Anyway, the bucket of loose bolts and nuts seems to be normal in these cars.

ltc

Try getting inside a Cup car for a while....you'll quickly ignore any sound from a 996TT....

Sam CS 05

my 01 TT had all the rear heat shields replaced and now is much quieter, car had 53 k miles at the time of repair.
Sam