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      07-09-2012, 01:55 AM   #20
san4ever
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Drives: sDrive35i
Join Date: Apr 2011
Location: Helsingborg

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Quote:
Originally Posted by Asbjørn View Post
Hi san4ever

Im not sure if JB4 runs higher boost than ESS stg2, but it is certainly "interesting" to hear about at DCT being replaced not because it slips but because of this rattling noise. Due to your experience I switched back to to ESS stg1 yesterday, just in case I still want to keep the car past 100.000kms (more or less 35is power figures and still a ton of fun to drive).

I never use the launch control out of fear for premature slip, but it seems there is more to worry about... I have noticed that mine makes a tiny bit of rattling noise, but only when warm, and it is not audible when cruising at low rpm. In other words, currently not a problem worth mentioning at all. But the thing is that I do not remember if it was there also before I installed my ess tune. It is most audible during accelleration if in sport+ mode. Did your noise increase slowly over time or was it just there suddenly? Does people without any tune have the same noise as mine?

And btw can someone confirm if the turbos are worn out more quickly if running high boost even if one does not actually floor it all the time? I always tought that if you did not push it, the turbos would (theoretically) last as long as if the factory map was being used...
I first noticed the noise in the drivers compartment as a small vibrating sound coming from within the dashboard somewhere between the radio and nav. This sound were present when cruising from approx. 25mph and above. When driving with the roof down there was this rattling noise coming from under the car very much noticeable when passing buildings and fences. This noice was also present from 25mph and above and becoming more and more loud. At first I thought it was two different noises, something rattling within the dashboard and the well known wastegate ratte from under the car but it soon became obvious that it was the same source of the noise.

The noise I had was always present from appr. 25mph and above, it did not matter if I was driving manual or in sports mode. With the new DCT the car is incredible silent, the only noise I sometimes can hear is the rear exhaust flap.

I have never ever used the launch control so this can not me the reason for my DCT problem.
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