Coolant Level Check on a 2021 Audi RS6 Avant 4.0L V8 Turbo MHEV

Checking the engine coolant (also known as antifreeze) level in your 2021 Audi RS6 Avant is pretty easy. In order to get an accurate reading, your 4.0 liter engine should be cool to the touch when you check it. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. The video above shows you where the coolant reservoir in your RS6 Avant is located and how to check the coolant / antifreeze level. If you need to add anti-freeze, be sure to check your owners manual to determine the correct type of coolant to add - in Audis, it usually located in a section titled Fluid Capacities towards the end of your manual. See our video on how to add engine coolant for tips on adding coolant to your RS6 Avant.

Always wear safety goggles when working on your RS6 Avant. Taking off the coolant reservoir cap on a warm engine could cause the cap to up explosively and fluid to spray out of the reservoir. If you notice an oily surface in your coolant, immediately have your mechanic inspect your RS6 Avant for head gasket leakage.