I was wondering if someone could tell me why my 1995 SL320 is hesitating when driven after sitting overnight or for a few hours. The car starts and runs fine but under acceleration it jerks and hesitates as if it is going to stall but then the problem goes away until the next time it sits for a few hours. The mercedes shop said that it was an accerator motor but if it is a motor why would the problem cease after initial acceleration. I really hope someone can help, this problem is driving me crazy.