Drivetrain

Haldex AWD Service Neglect: Why Fluid Alone Is Not Always Enough

How Haldex all-wheel-drive systems work, why pump screens clog, what symptoms appear, and what Volkswagen and Audi buyers should verify.

Haldex AWD Service Neglect: Why Fluid Alone Is Not Always Enough Many Volkswagen and Audi models use a Haldex style all wheel drive coupling. It is not a permanent mechanical center differential. It…