Removal, replacement of the Mercedes command controller C/E/CLS /GLK /SLK W204/W212/R172/X204/S218

You can buy repair kit here: https://www.ebay.co.uk/itm/Mercedes-C...

This is tutorial for removal of the Mercedes command controller. This type of controller can be found in the following Mercedes models: C/E/CLS /GLK /SLK W204/W212/R172/X204/S218

Problem description:
There is no reaction on the screen when rotating command knob. All other functions of the knob (front/back/left/right move, press down) works perfectly.

That problem was presented here:    • Mercedes command controller knob rota...  

This is a common problem in Mercedes cars. Manufacturer uses poor-quality plastic pin which transfer rotation of the knob to the controller. It's always a matter of time for it to break. As a result, knob rotates normally but there is no reaction on the screen. If you go to the authorised service they will replace whole controller what is extremely expensive and doesn't solve the problem for long. If you replace plastic pin with our aluminium one you get lifetime warranty that this problem will never occur again.

You can also find controller disassembly and replacing of the broken pin here:    • Replacement/repair of the controller ...