How to bleed the coolant in an Audi A6?

[OArya]

Audi A6 coolant bleeding methods: 1. Bleed by loosening or tightening the vent screw; 2. Automatic bleeding through the expansion tank at idle speed; 3. Open and close the radiator cap to release air; 4. Automatic bleeding during driving; 5. Idle the engine until it reaches normal operating temperature, then fully cool down and open the radiator cap to release air. Taking the 2021 Audi A6 as an example, its body dimensions are: length 4951mm, width 1886mm, height 1483mm, wheelbase 3024mm, minimum ground clearance 117mm, fuel tank capacity 73l, and curb weight 1885kg.