All I could hear was a 'clonck' unless its a very high frequency sqeak that I can't hear. Does it still do it when driving in the rain?

It was raining earlier so I had a chance to pay attention to it and it's definitely also when it's raining.

Somebody suggested checking the tailpipe for rubbing against a bracket, but I've checked it and it's not that either.

Edited by Ben82 on 20/02/2016 at 17:48

Maybe try rattling the silencer to see is something is loose in it.. and tapping it underneath too

or look the other side of the silencer box (engine side) and wiggle the middle pipe & feel for exhaust leaks.

Mine made a strange noise at low revs , for a second or two..
.and it turned out the exhaust had split..

s103.photobucket.com/user/liammcl_2006/media/Exhau...l

it was all crumbling inside
s103.photobucket.com/user/liammcl_2006/media/Exhau...3

this was (one of ) the noises it made..
s103.photobucket.com/user/liammcl_2006/media/Exhau...9

btw, I'm only completely guessing ..

I would be tempted to bring it into kwik fit for a free quick once over.... just to be able to see underneath it & to rule out a loose exhaust fitting..

ps I can't hear the noise either
(...but it's late and I don't want to turn the volume up max.)

Edited by liammcl on 21/02/2016 at 04:30

Hi, I know this an old post. But do you remember what was the cause of the issue in the end? My car is doing the exact same thing and struggling to find the fault.

I would look at all the exhaust system and mounts first. The rear silencer on the 207SW is attached by a mild-steel strap which easily rusts through. A stainless one is easy to find on the web and fit DiY.