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Hydractive hydraulic suspension 3: EW7J4, EW10A, DV6TED4 and DW10BTED4 engines. Hydractive hydraulic suspension 3+: ES9A and DW12TED4 engines (prior to RPO No 10645). C6 (2005–2012) Hydractive hydraulic suspension 3+: Standard on all models. C5 III X7 (2007–2017) Hydractive hydraulic suspension 3+: Depends on country and trim.
Citroen Xantia Activa V6 (1997) The top model in Citroën's Xantia series was the highly engineered Activa. The model was introduced at the end of 1994, and between the spring of 1995 and the autumn of 2001 was built in just over 18,000 copies. The name refers to the Citroën Activa showcar.
An active suspension is a type of automotive suspension that uses an onboard control system to control the vertical movement of the vehicle's wheels and axles relative to the chassis or vehicle frame, rather than the conventional passive suspension that relies solely on large springs to maintain static support and dampen the vertical wheel movements caused by the road surface.
The Hydractive system was soon to become available to the public first in Citroën's XM model 1989, and Xantia model 1993. In 1995 Activa prototypes' active anti-roll-bar was introduced in the Xantia Activa , making it one of the few production cars to have active suspension.
The hydraulic systems were also a lot quieter when maneuvering; this was due to the changes the "Anti-Sink" system brought. Early cars, 'sinkers', had a single output hydraulic pump which had its output divided into separate circuits, one for the power steering and one for the suspension/brake circuits (power steering needs a large flow rate ...
The hydraulic cylinder was fed with hydraulic fluid from the main pressure reservoir via a height corrector, a valve controlled by the mid-position of the anti-roll bar connected to the axle. If the suspension was too low, the height corrector introduced high-pressure fluid; if it was too high, it released fluid back to the fluid reservoir.
This updated suspension reduced body roll by 45% [6] compared to the first generation ABC suspension. ABC Plus had an updated hydraulic system design, with shorter hydraulic lines, and the pulsation damper was relocated to be mounted directly on the tandem pump. In 2010 a crosswind stabilization function was introduced. In strong gusts of ...
This high-pressure hydraulic system would form the basis of over 9 million Citroën cars, including the DS, SM, GS, CX, BX, XM, Xantia, C5, and C6. Self-levelling suspension is the principal user benefit: the car maintains a constant ride height above the road, regardless of passenger and cargo load and despite the very soft suspension.