I took the Polo to an Auto Electrician who indicated that the ignition is a common issue. He replaced the electrical parts of the ignition and it working now.
So symptoms are:
When car is left in sun it will not start. Only when it cools off will it start again. You can see oil, temp, etc ligths comming on and also electrical fans starting, it just does not start the engine.
It gets worse over time. It took about 1 to 2 years to completely give in.
If you have a 3rd party Radio installed tied to the ignition, and it stays on when the ignition is turned off, then that is another symptom you can go buy. This is working fine now.
I hope somebody with this same issue finds this message!
Wednesday, January 4th, 2012 AT 2:00 PM