Fix Coolant Leaks: 2018 Audi S6 Premium Plus 4.0L V8 Turbo

Audi S6 Model Years - 2013, 2014, 2015, 2016, 2017, 2018

How to fix a radiator and coolant leak with stop leak

Author

Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.

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Video Description

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2018 Audi S6. Leaking coolant / antifreeze is one of the more common types of leaking fluid from S6 engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your S6 engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2018 S6 with the 4.0 liter engine. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Otherwise, your S6 may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2018 S6 Premium Plus are located and the steps needed to fix minor leaks.

A few things to note about coolant is that it is sweet tasting and highly toxic, so it can end up in the dog's stomach pretty quickly. If you ignore a small coolant leak long enough, you will run out of coolant, which leads to an overheated engine and other serious, but highly avoidable, problems. An anti-freeze leak can cause the temp sensor to record high engine temperatures in a 2018 Audi S6. Always protect yourself with safety glasses and gloves when working with the coolant on your S6.

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