Can anyone advise me whether it is possible to replace the driver seat squab (cushion) on a 2013 X250.
The one in our motorhome has 'sunk' and is very hard. I believe the previous owner/driver was a particularly large person as there is a similar problem with one of the lounge cushions!

Any information would be most welcome.

Was told by an upholsterer friend that pads are available, but no idea where.
Possibly start by getting a scary price from a Fiat dealer.

The seats are made by Isringhausen ( probably spelt wrong ) who do all the truck stuff.

I have recently stripped a seat to convert it to a passenger single. Not too difficult but the cover on the seat base is held onto the foam by little metal rings which are difficult to remove without a special tool. I lost the clips and used cable ties to fix the cover back on. The creases and folds are formed with either metal wires or velcro, depending if base or back.

Suppose if you were stuck you could go to a srap yard and buy the filthiest seat with the best base pad and strip it down.