Hello, this video shows you how to charge your coolant on a 2012 Mercedes Benz C180 (W204). The same process will apply to other models. The car in the video had the warning "Top up coolant" on the dashboard. I've used Mercedes Antifreeze (325.0) at the main dealership which is expensive £ 18.49 for 1.5 L, but Mercedes only recommends some brands to use. It's an easy job that can be done yourself.
Thank you very much Vince
Video credits to My Mate VINCE YouTube channel