Having problems with your Volkswagen Polo ?
My vw polo's exhaust emission light has came on and i only bought it yesterday
You need to have an OBII scan performed. (fault scan) Any good shop or parts store can do it for you and most will FREE. Do the scan to identify what triggered light. It could be something as simple as a loose connection.
It is most likely an electrical problem and you should take it back to have fixed from the dealer.
Repair Help & Product Troubleshooting for Volkswagen Polo
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