Pneumatic BMW Struts Front L Air Shock 7 Series G11 G12 4Matic XDrive 3710687755

Is air suspension good for daily driving?
Whether the system is manual or electronic, or installed by a weekend mechanic or a seasoned tech, air suspension can lower a car to improve its street cred, even out a heavy payload, or simply improve the ride of a vintage Detroit metal street monster.

Air Suspension System Components
Early versions of air suspension systems were relatively simple. Air bags replaced the coil springs. The bag was inflated to the correct pressure or height with an outside compressor through a valve on the bag. Changes in technology and use added more components, and control, to the system. But today's air suspension systems all have a basic stock of similar components that vary little from maker to maker. The differences come mainly in controls and ease of installation.
Air bag material has changed little over time. The bag is a composite of rubber and polyurethane, which provides structural integrity, air-tight construction, toughness against light abrasion from road debris and sand, and resistance to salt and chemical corrosion.
The bags come in three basic shapes:
Double-convoluted bag. This bag is shaped like an hourglass. The design allows for a little more lateral flexibility than the other designs.
Tapered sleeve. This air bag performs the same as any other but is designed to fit in a tighter area and offers a little more adjustability on ride height.
Rolling sleeve. This is also a specific-application air bag. The pertinent differences between the two sleeves are really about ride height and spring control, and what's best for the vehicle and the application.
Most air suspension systems now come with an on-board compressor. The compressor is an electric pump feeding air to the bags through a series of compressed air lines. The compressor is generally mounted on the vehicle's frame, or in the trunk. The vast majority of compressors come with an attached drier. The compressor works by drawing outside air into the pump, compressing it and moving it to the bags. Outside air is often laden with moisture, and moisture can wreak havoc in a closed system. The drier uses a substance known as a desiccant to absorb as much moisture from the air as possible before the air is sent through the system.
Simpler compressor systems rely on the compressor itself to maintain, increase or decrease pressure. More advanced systems add an air tank to maintain pressure and provide an even transition between pressures. Compressors can be activated manually or automatically, and controlled solely by the driver, automatically through an electronic system, or a combination of both.

About Air suspension and its uses
Pneumatic air struts, an air compressor, a solenoid valve block, an accumulator tank, and air lines that connect these components together.The air suspension strut is made up of an air spring that acts as the coil spring and a solenoid which provides the dampening effect by magnetically resisting the linear motion of the piston. The air spring is comprised of a pressurized rubber bag or “U-bellow” surrounding a cylinder-piston setup. In order to enhance durability, the bellow is made up of polyamide cord woven inserts surrounding an elastomer (i.e. rubber) that ensures the bellow remains air-tight. In order to improve the response behavior to external forces such as those encountered during cornering or while driving over bumpy roads, the bellows are often encased in an aluminum cylinder. Some air suspension struts have an air reservoir attached to the air spring in order to have a sufficient volume of air necessary to satisfy comfort requirements without increasing the diameter of the strut. This is often done in the rear struts of Audi vehicles in order to maintain a large boot space.

A series of body level and acceleration sensors feed information into a control module that in turn instructs the accumulator, compressor, and valve block to move air around accordingly.

Our Company

1. We are top 3 of professional Auto Parts manufacturer in China.
2.Advantageous in Air Suspension Shock Absorbers, Air Compressor Pump etc..
3. Our all of our products are with high quality and competitive price.
4. Our factory had been focusing on Auto Parts Business over 12years.
5.Our products list suitable for Benz, Audi, BMW, Land Rover, Volkswagen, Porsche, Bentley, Jaguar, GMC, Jeep, Rolls-Royce, Compressor etc.
6. OEM and ODM are available
7. Monthly Production capacity is 5000pcs.
8. If order quantity is large, then price can be negotiated
9.Most of our products are exported. Europe, Middle East, Northern Europe, Eastern Europe and North America are our mainly markets. Southeast Asia, Asia Market Also available.
10. All of our products are 100% Brand New.
11. Goods will be test( 100% air leakage test, fatigue test etc.) before the shipment.
12. Warranty: 12Months

Note:
1. 12 month warranty
2. 100% quality testing before shipping.We will provide you excellent customer service and 100% satisfaction warranty.
3. Please note that we do not be responsible for any customers fee which is charged by your country.
When you take the order ,it means the buyer has agreed clearly all of our terms.If not ,please contact us before order.
Instruction is not included. Professional installation is recommended. We are not responsible for the warranty because of Artificial damage and Improper installation. Please provide photos or videos to apply for warranty. If you are not sure whether our parts fit your car please provide the VIN number of your car,we will confirm for you.