1. Generation Haldex Oil Filter for 4-Motion and Quattro. We recommend to change the Haldex oil with filter every 30.000 km. In the Kit included: Haldex Filter Filter-Flage O-ring seals Fits for: Audi A3 8L Quattro Audi S3 8L Quattro Audi TT 8N Quattro VW Golf 4 4-Motion VW Passat 3BG 4-Motion All Gen. 1 Haldex Cars Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com