backofthenet Posted June 4, 2021 Posted June 4, 2021 Hello, I have a 2007 RS4 Avant. i recently had the exhaust valves stuck shut even when in sport mode - so i opened the valves and at the same time disconnected the vacuum pipes taking due care to block them off with golf tees firmly stuck in the holes of the vacuum pipes - sounds great now and no apparent loss of power. This coincides with the start of a fuel smell in the cabin. Is there a possible link? or is it coincidence?
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