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Wondering if someone can review my problem and make any suggestions.
http://www.benzworld.org/forums/w163-m-class/1395439-help-what-now.html I have a 1998 ML320 with 133K and basically I am getting a CEL with codes 300, 304, 305 and 306. I have changed the air filter, MAF and all the plugs. I have tried swapping coils and wires from side to side and still get the same codes. Each time I clear the codes and drive as soon as I put a load on the engine it knocks/pings and the CEL comes on. Thanks. |
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