Denloon Posted June 2, 2022 Share Posted June 2, 2022 Hi I have 2016 sq5 and when starting from cold there is an ever so slight eggy sulphury smell has anyone had this and what could be the cause thanks Quote Link to comment Share on other sites More sharing options...
Steve Q Posted June 3, 2022 Share Posted June 3, 2022 Could be the cat: https://www.700r4transmissionhq.com/audi-q5-rotten-egg-smell/ 1 Quote Link to comment Share on other sites More sharing options...
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