Model for sports-active car performance the new BMW X5 has allowed to equip it with a modified version of the petrol engine V8 4.4 i with VALVETRONIC. The engine displacement of 4398 cm3 and a power of 320 HP at 6100 rpm capable of accelerating the car from standstill to 100 km/h in 7.0 seconds. On the highway the BMW X5 has a top speed of 240 km/h. Torque of 440 Nm at 3700 rpm. When driving in the combined cycle fuel consumption is 13.1 l/100 km.
Along with the VALVETRONIC system, adjusting valve stroke, the engine has an intake system with a continuously adjustable length intake tract and known still models system with the smooth regulation of the valve timing double VANOS.
The VALVETRONIC system, developed and patented by BMW, has allowed to abandon the traditional throttle. Thanks to this system the intake valves are raised exactly to the extent necessary to provide instant engine response, regardless of the dynamics of pressing of the driver’s foot on the gas pedal.
Double VANOS, which is a double system of variable valve timing improves the torque characteristics, changing the position of the camshafts intake and exhaust valves depending on the rotational speed of the crankshaft of the engine and throttle position. This system provides improved smoothness of engine operation at idle and excellent fuel efficiency. The system monitors the return of hot exhaust gases into the combustion chamber after the engine is started. At the time of warming up the engine VANOS improves toplivoobespechenie mixture and helps as soon as possible to increase the temperature of the catalytic gashanatantra and bring it to normal operating level.
BMW X5 is equipped with an adjustable intake system that can continuously change the length of the intake tract, adapting it to the requirements of the engine at the moment that contributes to the achievement of the optimum characteristics of power and torque throughout the Rev range.
The first BMW X5 was equipped with a powerful 6 cylinder 3 litre petrol engines, combining power, sensitivity reactions and cost-effectiveness. This same motor works great on BMW X5 2005 — he develops the power of 231 HP at 5900 rpm and propels the car to 100 km/h in 8.3 seconds. At 3500 rpm the torque on the shaft of the engine is 300 Nm, while fuel consumption in the combined cycle does not exceed 12.7 l/100 km; Four valves per cylinder, adaptive anti-knock control and separate coils of ignition for each cylinder of the engine combined with the dual VANOS motor and provide the highest level of performance. The management of these innovations is provided by Siemens MS43 system, which monitors all engine functions, including the operation of the electronic throttle. Throttle-by-wire allows you to instantly implement the driver’s commands. The system determines which gear is engaged and activates individually for each programmed control algorithm for the throttle.
In-line 6-cylinder engine models 3.0 i and 3.0 d equipped with the six-speed manual transmission, and a V-shaped 8-cylinder 4.4 i is aggregated with a 6-speed automatic transmission (a / t). The heart of the new ultra-compact automatic transmission ZF GA6HP26Z is a planetary scheme Lepelletier that exceeds the most common, but more cumbersome scheme of Wilson. Electro-hydraulic unit has three driving modes, each of which is selected by the selector lever — Drive, Sport and Manual. In sport mode (Sport) the gears are shifted at higher revs, a sixth gear is not used. In manual mode (Manual) shift performed by the shift lever back (for switches “up”) or forward (switching down).
New 6-speed transmission has a wider gear range. Accordingly, the difference between the gear ratios of adjacent gears is smaller. First gear has a lower gear ratio than the five-speed box, allowing the BMW X5 to move with great acceleration. Well, the fifth and sixth Overdrive to help the engine reduce the engine speed in quiet rides and thereby reduce fuel consumption and noise levels.
The intelligent automatic is able to recognize the individual driving style of the driver, aligning with it shifting “up” and “down”. New 6-speed automatic gearbox is a refined version of the adaptive adjustment of the system, which in particular does not allow switching “up”, for example, increasing gas in a turn or descent from the mountain. Additionally ensures smoother gear shifts and improved fuel economy.
High quality and reliable steering of the BMW X5, its balance and stability are the envy of the owners of not only four wheel drive vehicles-SUVs, but sedans and classic. Machine behaves well off-road due to the large ground clearance, the range of suspension movement and excellent traction, which is provided by xDrive.
As you know, the requirements for asphalt car and the SUV are rather contradictory. Unlike many AWD vehicles frame construction, the BMW X5 has a bearing body with exceptional torsional stiffness — 23 100 Nm/deg. This allows you to absorb vibration from the road, vibrations of the suspension, engine and transmission, causing the driver and passengers feel like in a cocoon. This rigid design in combination with the wide track, large wheel base, weight distribution in the ratio 50:50, a relatively low center of gravity and, of course, the new xDrive system enables the BMW X5 to have everything for the brilliant handling.
Suspension borrowed from the current BMW 7-series, while the rear suspension uses aluminum components to reduce unsprung mass and a pneumatic system with electronic control for automatic adjustment of the height of the body above the road. Use in the control system rack and pinion mechanism allowed to reduce the turn radius of the vehicle up to 6 m and more informative steering.
In the BMW X5 rear suspension instead of conventional steel springs uses the gas strut, which are supplied with compressed air from the compressor with the electric drive. Having the function of automatic control of the height of the body above the road, the air suspension offers two key benefits. First, it ensures a constant vehicle height and ground clearance regardless of load. And secondly, due to the load capacity of the gas strut to provide the necessary driving comfort.
This system is controlled by two sensors, which measure the deviation of the two pendulum arms on the rear suspension and thereby determine the body height and ground clearance. As soon as the load on the rear suspension will increase the pressure in the gas strut to increase, and they automatically become more rigid.
Depreciation are provided in a separate gas-filled shock absorbers installed under the floor, allowing you to increase the space in the trunk between the wheel arches. The system automatically detects uneven loading and change of weight distribution during movement taking into account the actual conditions. For example, turn the on-Board computer determines the time when the self-adjusting suspension can cause unnecessary body roll, and instantly disables the monitoring function.
Brakes on the BMW X5 disc at both the front and rear wheels. Front — ventilated discs with a diameter of 332 mm, rear — non ventilated diameter 324 mm. Device brake force distribution, which is a standard part of the braking system provides maximum braking performance in emergency situations. ABS is an element of the base set.
System of providing active and passive safety the new BMW X5 provides the driver and passengers a level of protection, which no other class cars 4×4. In addition to front airbags for driver and front passenger, as well as pillows in the front doors of the new BMW X5 is in a base complete set front and rear airbags for head protection, which prevents the ball with his head or shoulder against the door in the event of a collision. Staying inflated long enough, they retain their protective effect in the case of the car overturning.
The pillows in the rear doors are offered as optional equipment. In total, the new BMW X5 can accommodate up to 10 airbags. A unique level of protection was recently confirmed by the five stars Euro NCAP test — the highest of all possible levels of safety.
The car is equipped with HDC, which allows drivers to safely and securely descend from the slopes. At speeds less than 50 km/h button in the middle of the Central console includes the HDC, which will limit the speed in the range from 5 to 25 km/h the speed Selection is made using buttons on the multifunction steering wheel or by pressing the accelerator. The driver does not have to manipulate the pedals “gas” or brake — automatic equipment itself controls the speed of the vehicle, individually braking individual wheels, providing the movement down the slope at a safe constant speed.
BMW the first in the world have created a system of control of stability of motion, which offers a significant increase in the level of security, especially on high speed roads. When driving with a trailer system aktiviziruyutsya and uses the DSC sensors to control the wagging of the trailer. At speeds over 65 km/h for any unwanted wobble of the trailer brakes are utilized on all wheels of the vehicle are lit brake lights and reduced engine power, allowing for a few seconds to stabilize the movement.
Specifications all-wheel drive car BMW X5
As additional equipment the creators of the BMW X5 offer adaptive headlights that use the speed information, the steering angle and the yaw rate of the vehicle to determine the angle of its rotation relative to the machine axis (maximum angle is 15 degrees). Improving road illumination by 90 percent, adaptive headlights contribute to a significant increase in the level of traffic safety.
Since the release of the X5 on the Russian market the number of sales of these cars is constantly growing. So, in 2002 in Russia was sold 699 cars, and worldwide total sales exceeded 100 thousand.