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A lot of information on the new 992 here

Please can anyone help with the following? I have a 2018 991 C4S which has a fault with the auto start/stop system. I bought the car new and the fault has been there since day one. Symptoms are that periodically it will fail to restart after stopping in traffic. Nothing works to get it restarted, including getting out of the car, locking and unlocking it and trying again. Weirdly, after 15 minutes of standing by the roadside it will then restart on the key. Sometimes the car will not start at all from warm. The fault appears completely randomly. In both cases it flashes up 'press brake pedal'...which clearly I am doing! It seems therefore to be brake related. The dealer cannot find the fault because nothing is appearing on the data. They have sent the data to Porsche Germany as well and they can't diagnose it. They have tried all sorts of things on the starting side of the engine. They have also replaced a pressure sensor on the brake master cylinder. Clearly if I could solve this by just turning off the auto start/stop I would but that doesn't help with the starting from scratch. Any ideas gratefully received (other than give the car back and get a refund, which I am tempted to do except for the fact that it is perfect for me and I can't get another one like it).
 
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