I can sympathise with your problem. My last C70 developed a really annoying dashboard squeak after the windscreen was replaced. It turned out that the windscreen surround was rubbing against the bulkhead (requiring yet another windscreen) but the dealer had to remove the entire dash to locate the problem.<P>The dash is secured to the bulkhead by four or five bolts under the scuttle panel (the bit of black plastic below the windscreen). The scuttle panel is held in place by four (I think) torx screws and comes off with a bit of flexing after you've removed the windscreen wipers. The scuttle panel has to come off to change the pollen filter so it's not a big job. Once you've got it off you should see the bolt heads spaced along the bulkhead. You should be able to get at them with a socket extension (although the wiper mechanism might limit access to a couple). To be honest though, I'd be amazed if these were the source of the noise you describe. From your description I'd hazard a guess that the top section of the dash is rubbing against either the lower section of the dash or against the windscreen/bulkhead. The top section of the dash simply lifts off once you've undone all the screws (including the one under the centre speaker cover) so you could try driving around without it for a while to see if the problem disappears or you could try the trusty method of shoving a business card between the things you suspect are causing the problem. Even if you can't, or would rather not, remove the dash top completely you might find that loosening a few of the screws is enough to stop the offending parts contacting.<P>My own experience however is that the more bits you fiddle with, the more likely it is that you'll create another squeak or rattle or damage something in the process. Lots of the screw fixings are self-tappers and they never grip the same after they've been cycled a few times. At least if the dealer carries out the work you'll have some comeback. <P>One last thing - is the noise temperature dependent? If you can put up with it until the colder months you might find that it simply disappears of its own accord. <P>[This message has been edited by SG (edited 08-21-2002).]<p>[This message has been edited by SG (edited 08-21-2002).]