Porsche PCM 3.1 Firmware Software Update Disc CD DVD V4.76 (Cayenne, Macan etc)
£21.50
Press "Info" button located under the PCM screen. Then press "Option" and select "Show System Version" on the PCM screen. Porsche Macan (2014-2016). Update your Porsche PCM 3.1 head unit to the latest version available.
