The ballast appears to have gone in both sides of my 2006 2.0TDI A3. It's the S-Line with auto adjust. I'm needing to know exactly what type of bulbs these take? I simply can't afford the main dealer prices so I'm trying to locate either ballast online such as ebay or complete aftermarket kits to fit in as a replacement. Any help would be hugely appreciated as the MOT is also fast approaching!