2002 CL55 AMG, 1993 190E 2.3L, 2004 SLK320 Sport
Lately, when I start my car the idle remains the same whether it's in park or drive(650-750 rmp). Also, my car doesn't perform as well as it did a couple of weeks ago! It lags off the start and it seems very slugish! Anybody, have any ideas?