I am wondering why the chech engine light came on after i cleaned my K&N filter, got an oil change, and changed my spark plugs. That was yesterday and today it lighted up. Is there something wrong with the 99 ML320? Any advice


Thanks






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99 ML320 (opal blue)
01 BMW X5 4.4i (jet black)
00 Mitsu Montero Sport XLS (blue)