Air Suspension in Cars | What is it and How it works?

Air suspension is a system that uses an air compressor alongside air struts and suspension airbags to manage the quality of the ride. Aftermarket Air suspension system is a pretty clever system and differs from the traditional suspension system that comes with your car.

What are the components of an air suspension system?

The air suspension system comprises of Five main parts:

  • Airbag struts – to inflate and deflate air
  • Tank – to store the pressurised air
  • Pump – to push the car up
  • Sensors – to control the height
  • Controller – to select the height required

How does air suspension system work?

Air suspension system works by replacing traditional springs with airbags. Instead of having a spring, the suspension strap has a bag that is filled with air from the tank which keeps the car at the desired height. If weight is added or removed from the car, the sensors check the height and automatically adjust the struts to keep the desired level. However, if you want to go lower you select the lower mode on your control which sends a signal to release the pressure in the airbags. Thus lowering the car to where you want it. Similarly, if you want it raised to get over bumps hit the higher setting and the pump kicks on to push pressurised air back into the suspension lifting the car back up.

What are the advantages of Air suspension?

The advantages of having an air suspension in your car are

  • Less vibration and noise
  • Improves Fuel economy
  • Great tyre life
  • Increases resale value
  • Better grip on roads

What are the Disadvantages of Air suspension?

  • Air Leaks
  • Expensive

The main disadvantage of air suspension parts are air leaks. Since the system uses air to maintain the ride height and ride quality, if there is a leak in the air spring or air suspension compressor then the vehicle will decline to lower levels.