Dont' know if these biological and chemical thinks really work, because they have to go through the perforated leather. And as far as i know there is also a fabric layer between leather and foam. The injector idea is o.k., but i'm not convinced that it really works. Think the best way is to put out the seats, pull off the leather, clean, or better replace the foam parts and reassemble everything.

Very nice car.

Regards from germany
Markus