Ignition Push to Start Button
The button has been reluctant to work on the first push as it used to and the other day I thought it was not going to work at all so some investigation was called for. I did a search and a Skoda owner had kindly been there before me and posted a video on how it needs to be pulled apart and the contacts cleaned. This is just a heads up if you have the same problem and mine is working fine now after an overhaul today.
Ignition Push to Start Button
Good to hear you were able to revive the switch by cleaning the terminals - I hope it works long term. My start/stop switch was playing up also (2015 Golf GTI - was having to push the button 2-3 times to turn on/off the engine) and I bought a new one (VW Central sells them, they are $140). Works perfectly now.
5G2959839A3Q7 - Genuine VW Engine Ignition Start Stop Button Switch Aluminium (RHD) Fits MK7 & MK7.5 Golf GTI & R