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code p3497

  1. Surging at speed

    General Discussion
    I have a 2005 300c that has developed a surge when it is at a constant speed. I had a code “P3497” pop up, I changed the oil and it went out. About a month ago I had the transmission flushed at the local dealer so the fluids are fresh. I do pull a trailer with this car but the load is under a...
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