Sound Proofing

I have a 93 200tdi and it is quite noisy inside. Any tips on sound proofing? I already have some soundproofing materials left over from another project. Just wondering where I should add it.

Buy ear plugs.

Going back to when I bought a classic off of Noah, I stripped out the carpet (easy) and bought sheet lead from the hardware store, covered the floor and gearbox tunnel in that and re-fitted the carpet. Put good quality sound deadening mat on the underside of the bonnet as well.

I covered bulkhead in pads when I removed dash to do some welding. This actually made a huge difference. Also stick pads (I used silent coat) to foot wells, door skins, tunnel, well everywhere you can get it!!!
Overlay the lot with closed cell foam. I haven’t done the seat box in silent coat, just foam as I ran out and was impatient.
Do the same to the roof.
I did notice a big change once I’d done bulkhead though
I also used the leftover odd bits to do underside of bonnet.
Go around checking for holes and stick grommets or dum dum in gaps.
it will always be noisy but I use mine on long trips and with upgraded speakers and the above it’s not too bad.

Marshall8hp said:

Going back to when I bought a classic off of Noah, I stripped out the carpet (easy) and bought sheet lead from the hardware store, covered the floor and gearbox tunnel in that and re-fitted the carpet. Put good quality sound deadening mat on the underside of the bonnet as well.

Click to expand...

Lead? Bloody heavy and now illegal in the EU.

Got it. Removing the dash sounds like a big project? How do you go about removing the carpet.

How much would you like!
https://www.bunnings.com.au/consolidated-alloys-380mm-x-6m-x-15kg-lead-sheet-roll_p4960238

Dynamat is the business, great stuff..

Marshall8hp said:

How much would you like!
https://www.bunnings.com.au/consolidated-alloys-380mm-x-6m-x-15kg-lead-sheet-roll_p4960238

Click to expand...

Easy enough to buy but illegal to use where there are people in close proximity.