I'm new to the forum, and have been reading a lot of helpful tips. Maybe you guys could help me with this one. I've been starting my '99 230 regularly while in winter storage and I've noticed when reved at around 4000 rpm I'm hearing a miss or something. It's always been a little sluggish on cold starts but this "miss" is new. Any ideas what or why this is??? It got it's 30,000 mile check up at the dealer last summer and all was ok then. I'm hoping it's nothing major!!!!