I noticed a strange rattling noise coming from my Audi A4 engine while idling. I'm worried it may be indicative of a larger issue. What could be causing this noise and what steps should I take to troubleshoot and fix it?
ReplyIt is possible that the rattling noise is caused by a loose or damaged fan belt. I recommend checking the belt tension and condition. If necessary, have it replaced by a professional mechanic.
Another common cause of engine rattling in Audi A4s is a failing water pump. Inspect the pump for any leaks or abnormal noises. If replacement is needed, be sure to use a high-quality pump for best results.
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