Haldex AWD needs real service despite the lifetime-fluid label

The Haldex coupling's fluid was originally marketed as lifetime fill, but the community consensus in these auctions is a change roughly every 30-40k miles, with the filter. Diligent sellers documented multiple flushes and even photographed the dirty fluid to make the point, while several otherwise clean cars had never had the service at all, and one high-mileage example had an inspection-noted Haldex leak with a possible rebuild ahead. …