Intelligent four-wheel drive System Opel Antara ensures reliable traction

	1 - Engine
	2 - Transmission
	3 - Power transfer unit
	4 - Cardan shaft
	5 - Front axle
	6 - Rear axle
	7 - Rear-wheel drive module
	8 - Electromagnetic clutch
	9 - Data bus port
	10 - Control unit

The Antara’s four-wheel drive system combines the benefits of front-wheel drive − such as low fuel consumption and virtually effortless maneuvering − with those of four-wheel drive. While the engine normally powers the front wheels, the propulsion power can also be quickly and seamlessly distributed between the front and rear axle at a ratio of up to 50:50 when needed. The key element for this active function is an electronically controlled, electro-magnetically operated, electro-hydraulic differential on the rear axle. In addition to monitoring wheel slip, the system’s electronic central unit also processes a range of other information such as accelerator pedal position, engine rpm, vehicle speed, yaw rate and steering angle. The compact and light four-wheel drive system is fully integrated in the ABS and ESP systems and supports the driver effectively in all driving situations, such as during heavy acceleration.

The modern ESP system boasts numerous additional functions that further increase active safety, including Descent Control System (DCS), noteworthy as a standard feature in the Antara segment. DCS allows the vehicle to safely maintain a constant speed even down steep inclines without the driver needing to brake. Active Rollover Protection (ARP), another safety feature, can apply high braking pressure within milliseconds at individual wheels.