Info from Auto Express
As it says, the Volkswagen, Audi Group have received 17,000 complaints regarding the emissions scandal. These complaints range from customers experiencing lower fuel economy or power after the fix, right through to failed DPF filters and EGR/EGR coolers. Volkswagen state the complaints only represent 2% of customers who have had the "fix". Out of the 17,000 complaints received only 500 (approx) are open and being investigated. Volkswagen claim to have investigated the other complaints and have concluded that they have to carry out no further action.
Here's the link for more info:
http://www.autoexpress.co.uk/volkswagen/92893/vw-emissions-scandal-recalls-compensation-is-your-car-affected-latest-news
Hope it's useful
Cheers
Steve