Removing the seat covers and replacing the pads is not a huge task; check the site for a description of the procedure.
Don't overlook the possible contribution of carpet to an odor problem.

__________________
Craig Bethune

'97 SL500, 40th anniversary edition

'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)


SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)