Thread: 420sel problems
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Old 08-20-2000, 08:05 PM
TommyMB TommyMB is offline
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Join Date: Nov 1999
Location: Lynnwood, WA, USA
Posts: 178
There are many things that could cause emission to failed including oxygen sensor, idle mixture, bad plugs/wires, and so on.

The best things that you can do is to take the car to a Mercedes specialist and have it checked out before you buy. Personally I would take it to the dealer even if I have to pay more.
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