Reasons for Audi A6 Air Conditioning Blowing Hot on One Side and Cold on the Other

[LeWeston]

Audi A6 air conditioning blowing hot on one side and cold on the other may be caused by the following reasons: 1. Operation time: During driving in the hottest summer, if the air conditioning runs continuously (approximately 0.5-2 hours), the side vents may blow hot air (very hot but not scalding). If the air conditioning continues to run without being turned off, the left and rear vents will soon blow hot air, followed by the central vents. 2. Vehicle malfunction: If the vehicle is turned off and restarted, the issue may disappear; or while driving, shifting to N and pressing the accelerator deeply (exceeding 4000 RPM) for several seconds before restarting the air conditioning may resolve the issue. 3. Cooling system malfunction: Initially, it may be suspected that the radiator fins are dirty. However, after removing and cleaning the radiator and fins, the issue persists. When the problem recurs, the vehicle's onboard computer still shows everything as normal.