Hi am new to forum and need some help! i have 1997 e class estate 230 witch has a miss seems ok on tick over but as soon as you select drive it starts to miss fire wa told it was the maf so changed it bit better but still not right,then i was told there are about 5 difrent types maf's ???? however i do think it eletronic problem or maybe air geting sucked in from manifold have changed plugs and leads but no difrence any advice welcome. cheers