Blog

Citroën’s Hydropneumatic Suspension Is Being Depressurized—Forever

– Since 1954, top-spec Citroën models have famously ridden on what felt like a cushy wave of fluid—because, well, they actually rode on a cushy fluid. The French automaker’s innovative hydropneumatic suspension system used pump-driven hydraulic fluid and small nitrogen-filled bladders at each wheel to absorb road impacts like no metal spring and gas-charged damper setup could, while also offering load-leveling and, eventually, mitigating body roll. That the hydropneumatic system has survived