Since its founding in late 2008, 500Eboard has become the leading resource on the Internet for all things related to the Mercedes-Benz 500E and E500. In recent years, we have also expanded to include the 400E and E420 models, which are directly related to the 500E/E500.
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I am looking for upper wirring harness mine is original. My 500E start up fine and runs but when it warms up it is sputerring and shaking then if i keep driving it will smooth out. Plugs and wires done 10K miles ago. I am assuming harmess is acting up
Check the date code on your harness first. It's far more likely you have ignition issues causing the sputtering and shaking. The problem would likely not go away if you keep driving, if the harness was at fault. If the harness is original with cracking insulation, definitely change it anyway, but it may not cure your issues. If the harness has already been replaced, you'll need to keep investigating.
Harness came from 1992 500E but was told it will fit 1993 500E will order it today. Today car has not stoped shaking. It has misfire and I swear my a/c is not as cold as it was before this started. I have no light on just crazy shake in idle and sputtering when reving engine or driving
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