Cooling SystemDiscussionCommunity Starter

Question: Runs hotter sitting in traffic than moving

CleanMechanicishCommunity StarterMay 23, 20262020 Audi Q7 55 TFSIDenver / Front Range
2020 Audi Q7 55 TFSI, about 22,000 miles. Coolant temp climbs while idling with the A/C on, then drops back down once I'm moving. Coolant is full and I don't see a leak. Fans do run, but I'm not sure they're moving enough air. What would you test next?
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TurboDailyCommunity StarterCommunity StarterMay 23, 2026permalink
Log the conditions before you spend. Move a coil or plug on the 2020 Audi Q7 if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. On “runs hotter sitting in traffic than moving,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. Heat soak after errands is the other window.
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