crossmember introduce

Yuanbaoliang, the concept of "subframe", is a new term often used in car books. This component is not only found in Volkswagen cars, but also in other car models. The subframe is not a complete frame, but only a bracket that supports the front and rear axles and suspension, connecting the axles and suspension to the "main frame" through it, commonly known as the "subframe". The function of the subframe is to block vibration and noise, reduce their direct entry into the car compartment, so it is mostly found in luxury sedans and off-road vehicles. Some cars even install subframes for engines)

Yuanbaoliang/subframe installation

1: Two horns of the gearbox: 2. Return oil pipe and oil pipe of the steering gear. 3. Half shaft and balance rod. Direction rod. 4. Connection of the steering intermediate shaft to the steering gear. 5. Installation of four fixing screws for the Yuanbao beam. 1. Fixation of four screws and intermediate shaft. 2. Two oil pipes. 3. Horn, half shafts and pull rods on both sides

BMW 740Li introduce

The BMW 740Li is a high-end luxury sedan produced by BMW Germany. It belongs to the BMW 7 Series and is only produced locally in Germany. The new 740Li is equipped with a 4.0-liter V8 engine, which is an upgrade from the old 3.6-liter V8 engine. After a minor facelift, the new 7 Series has a more friendly appearance. In addition to using BMW's Double VANOS dual camshaft variable valve timing system, the new engine also uses a continuously adjustable Valvetronic electronic valve drive mechanism, significantly reducing fuel consumption and emissions. The maximum power of the engine is 225 kW, and the maximum torque is 390 Nm. The new i-drive system has also been upgraded to accelerate from stationary to 100 km/h in just 4.6 seconds, making operation faster and more convenient. However, it is still the most complex system among all BMW models