after a bit of advice here as I'm jumping in the deep end with this as I have no previous experience with in-depth electronics or anything on any polo's.
Recently my car started flashing up the key in the car warning light on the dash which I believe is the key immobiliser/chip reader symbol, and normally represents either an ignition switch or barrel issue, or a weak battery.
Are there other tell tale signs of it having a weak battery? It used to sporadically appear, flashing whilst trying to start the engine. I thought originally it was something to do with the central immobiliser, but that is fine. I used to just wait 20 minutes or so and re-try and it used to work, so I shrugged the issue off as a character thing lol
Called the rac out and he wiggled the ignition barrel and got the car started, but did not know exactly what the problem was - he said take it to a vw specialist, but I'm sure as hell not taking it to a VW dealership, and can get a friend to fix it if I can work out what the problem is and buy the needed part - i'm guessing it's either the ignition switch or the chip reading cylinder? Oddly enough the car seems to start once a day. Truly bizarre as the ignition barrel and key immobiliser is a passive system is it not? I.e. resets itself periodically?
Any advice or similar issues would be much appreciated, worried about the little vdub!