How to RESET the Service Indicator Light on a 2012 Mercedes Benz C Class W204 (and other models)

Hi, this video shows you how to reset the service light on a 2012 Mercedes Benz C Class W204 when you complete your own servicing, It will also work on most other Mercedes models with the 12 button steering wheel.
Please add a comment below if it works on your model and give the age of the model to help others watching.
Towards the end of the video it shows common mistakes and expels the common myths you read about online about the process of resetting the service indicator.
Many thanks Vince