I am having problems with the park assist - there was heavy rain and then I got a message that it needs servicing. It occurs to me that now it has dried out it may all be fine and just need resetting. Is there a cable and software I can get to check this on my laptop and do the resetting myself? Or is this gear very expensive? I had two quotes to do the diagnostics of around £40 + VAT.
There seem to be all sorts of things on ebay ranging from £20 to £200 but I have no idea whether they work.