Do modern cars still have carburettors?
Anyway - if it does have one - you should not attempt to clean it in a tumble dryer.
Wikipedia tells me this...
"Fuel injection is a system for mixing fuel with air in an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s."
Good luck...
Peccavi, April 2010