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International Automotive Technicians Network
Re: 88 Mercedes 420SEL misfire off idle/ under load
Posted to Technical Discussion Forum on 2/27/2004

I agree with steve b. I think these cars need new injectors and Id add a set of ignition wires after a bit of service.........they can be flakey and are not too expensive these days. Ive seen lots of this model that were serviced regular but were just sluggish... Login to read more.