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Hello! I have a 2018 Audi A3 Etron. In the last three months, I have had the check engine light come on for the exact same issue twice. A failed coolant change over valve. Each time Audi has replaced coolant valve N633. I am driving from Austin, TX to Tucson, AZ to see my mom tomorrow and of course the CEL came on for the exact same reason again. No available Audi appointments until next week in Austin. Service advisor said I am probably fine to drive there which I thought seemed weird. The car is driving completely fine, but I’m starting to think Audi is not fixing the root of the issue. The coolant expansion tank on the right looks like it’s below the min line. This is for the high voltage area and can only be refilled by and Audi mechanic.
07-01-2021, 05:53 AM
CEL - coolant bypass valve stuck
