My Mk1 ZS120 had hardly any sound deadening anywhere!! So not just a Mk2 problem. I put dynamat in the doors, under the carpets, in the boot in fact everywhere I thought it might have some effect. I also fitted the under bonnet sound panel after putting dynamat on it. I would like to say it had some effect in making the car quieter but I really can't say to be honest, but at least the doors close with a thud rather than the tinny clang they used to make.
|