2004 volvo crossover3/1/2023 ![]() ![]() This system was not only more reliable than the VC, but much faster as well, with the electrohydraulics able to pull wheel slip data off the P2's CAN-BUS high speed data network and fully engage the clutch within 1/4 of a wheel revolution. This new Haldex AWD system used a multiplate clutch and the car's own ABS system: when the ABS wheel speed sensors detect the front wheels are spinning faster than the rears, it opens valves in the Active On-Demand Coupling (" AOC") and pressurized oil clamps down on the clutch to transfer power. In 2003, Volvo partnered with Swedish company Haldex Traction to remedy the shortcomings of the VC AWD system. In practice, however, the plates within the viscous coupler could fail, and the special dilatant fluid which thickens when the front and rear axle plates spin at different speeds would "shear down" over time, becoming thinner with age and causing slower and less consistent lockup in low traction situations. The viscous coupler AWD system, developed for Volvo by transmission and driveline specialists GKN, was meant to be a simple and maintenance-free system. 5-speed AW50-55 automatic transmission and (in the USA) " white block" 5-cylinder light-pressure turbocharged engines.Unpainted plastic front and rear bumpers, including special lower bumper guards.Over 8 inches of ground clearance (compared to the prior P80 V70 XC's 6.5).The resulting new car, branded the V70 XC at its launch in 2001, was a more thorough transformation from its standard V70 bones: With the launch of the upcoming P2 platform (including a new, P2-based V70 midsize wagon), Volvo's engineers knew the next V70 XC would be a hit.if it was well-executed. The first-generation, P80 V70-based V70 XC proved to be an unexpectedly strong seller for Volvo, despite the P80 platform's age. These days, an XC70 is almost the archetypal "soft roader" or "tall wagon", but the market was a brand new space in the late 90s. ![]()
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