Why is the left side of the Audi A6 blowing cold air while the right side blows hot air?

[KateRose]

Audi A6's left side blowing cold air while the right side blows hot air is caused by a malfunction in the car's heating valve. The reasons for heating system failure in cars include: 1. Premature opening of the thermostat: Outdoor cold air rapidly cools the antifreeze, preventing the engine water temperature from rising, which inevitably results in no hot air from the heater. 2. Air lock in the engine cooling system: Air lock causes poor circulation in the cooling system, leading to high water temperature and no hot air from the heater. Relevant information about the Audi A6 is as follows: 1. Vehicle dimensions: Length, width, and height are 5012 mm, 1855 mm, and 1485 mm respectively, with a wheelbase of 2945 mm. 2. Engine type: 3.2L/V-type 6-cylinder/4-valve/fuel direct injection. 3. Fuel consumption: 7.4 liters per 100 kilometers.