1997 E420 power surges when idling - Mercedes-Benz Forum
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post #1 of 1 Old 06-17-2008, 04:50 PM Thread Starter
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Question 1997 E420 power surges when idling

I am trying to figure out what might cause my e420 to surge from 500rpms to 1000rpms only when it's idling or when the car is slowing down... it did it last Monday but stopped and was fine until just yesterday (exactly one week later, my gas guage is at the halfway mark... same as before). This time it hasn't stopped and now surges from 1000-1500rpm when stopped. It's absolutely fine when driving down the road. Any suggestions? Thanks!
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