dell2u

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Question Asked: Carbon Build up
June 25, 2012, 06:51 PM
Has anyone encountered a problem with carbon build up in the engine? I have an Audi A6 Quattro with a little over 100M miles. Never had a problem before,the CEL never came on, but the car has just now started running sluggishly and misfiring, primarily in the mornings. Auto is maintained as scheduled, but I've been checking the internet and this seems to be an ongoing issue that Audi knows about. I wish I'd known before I purchased this vehicle. If anyone has had this experience and gotten it corrected, please let me know what was done. Thanks
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