When I start the car, there is a funny smell coming into the cabin. on 2006 Mercedes-Benz C230

The smell is like a sour smell. I know the cabin air filter is in the engine compartment and I plan to change today. Any other ideas anyone may have. Thanks

by in Dallas, TX on June 18, 2012
2 answers
ANSWER by on June 18, 2012
SPRAY SOME LYSOL IN AIR INTAKE BY WIPER ARMS THAT WILL HELP AND KILL BACTERIA
ANSWER by on December 05, 2014
Also use lysol spray inside the cabin filter area.