Re: Grating noise

check the meaning wrote:
> Hi,
> My A4 2k  has started making a grating noise from about where the 
> exhaust cat is situated, the noise is only present when i start from 
> cold, the noise dissapears after about 2 mins, any ideas??
> Thanks.
Need  more information:
What engine / transmission?
Does it make the sound when moving and in gear?
Does it vary with engine speed?
Noise when brading?
What speeds does it seem worse?
Any error codes?