I went to AutoZone. One guy said they don't do error code read any more ( either free or not ) . So no luck .
I drove about 30 miles with the ECL and it seemed to work ok. What is the cheapest code reader I could find on market ? vag-com is a bit pricey .
ECSTuning currently has one on sale for around $50. It's basic, but will give you numbers and clear the code once you've fixed the issue. I plan on ordering mine From ECS tomorrow. I also recently saw them at CostCo for $89. Innova brand I believe. Looks like a little bit fancier version of the ECS one. Vag-Com seems to be the way, if you can swing it, you should. I would, but I just don't have the $$$ or a PC laptop.
Unfortunately not, because it does show you only the first DTC in the list, which usually doesn't help much. You should also have a CAN-bus compatible interface cable for your car, and the compatibility of 3rd party cables is questionable when CAN-bus is in question. You can try it though, doesn't hurt the car, nor you, your wallet may cry though for possible waste of money. If you have any VW-specialized repair shop close to you, or even a dealership, get the car there and ask them to have the car scanned (they CAN and will do it), shouldn't cost you over $20. Have them hand you the printout of the DTC list, and post 'em here.
I went to a local shop with good review on Yelp . They scanned it and said it was emisson related and would be covered by 7 yr emission warranty . Then we took it to a vw dealer. They will tell us whether it is fully covered by warranty tomorrow. Unfortunately, I handed the error code to dealer and didn't make a record. Will update
The local shop used VCDS and read error code :
16840 EVAP system : very small leak detected
P0456 - 001 : Upper limit exceeded - intermittent - MIL ON
Rediness 0000 0000.
Then the local shop recommended us to go to dealer since it might be covered by emission warranty .
Dealer charged diagnostics again and found purge valve broken.
bloody $262 for labor inclduning diagnostics
$178 for purge valve part number 1C0-906-517-A .