I folded my rear seats base for the first time to store the weekly groceries on my new Jazz ES 1.4. and was surprised at the extra road noise generated on the drive home.
At first I thought a rear door or window had been left ajar but the only possible reason that I could find was a gap of an inch or more between where the rear carpet ended, the boot floor and the rear seat backrest met.
The carpet is quite thin and has no sound insulation where the rear footwells rise about 1ft over the rear axle to meet the boot floor and seat belt anchorage points.
As I had some old underfelt in the garage it was a simple job to measure and cut the insulation to clear the tunnel, seatbelts etc. remove the four plastic clips holding the carpet and feed the underfelt both by hand and using a piece of wood between the carpet and flooring.
I finished off by feeding the insulation under the rear seat backrest into the rear of the boot floor
Road noise much reduced now with the rear seats folded .
