The Mercedes-Benz S-Class Coupe has consistently been a benchmark for luxury and performance. Particularly in the C217 series, introduced in 2014, the superior driving comfort is primarily achieved by the advanced Airmatic air suspension. The Aerosus Air Strut featured here is specifically designed for installation on the front right axle. This component is fully compatible with all C217 4Matic models featuring Mercedes' all-wheel-drive system. For rear-wheel-drive models, please consult our shop for the appropriate struts.
Understanding the Suspension of the Mercedes-Benz S-Class Coupe (C217)
Mercedes-Benz vehicles equipped with air suspension carry the Airmatic designation. The C217 series employs air struts featuring an Adaptive Damping System (ADS) along with integrated solenoid valves. These valves regulate the damping stiffness by controlling oil flow, allowing dynamic adjustments between firm and soft suspension settings. The Airmatic system automatically adapts suspension characteristics according to driving modes (Comfort or Sport), driving speed, and road conditions, providing enhanced stability, particularly at higher speeds.
Air-Spring Leakage or Level Control Failed - Reasons for a Defect
The front of your Mercedes lowers unilaterally or stays crooked? As with many other car parts, air struts wear out, so they need to be replaced over the years. First signs of a problem are leaks of the shock absorbers due to oil loss as well as a reduced resilience due to compressed air loss. The vehicle lowers overnight on the front axle or the compressor runs too long? This may be an indication that the affected suspension parts should be replaced. Even if the shock absorbers leak oil and your car loses oil or you hear loud thumping noises while driving, you should not wait too long before repairing the failed parts.
A cable break, faulty solenoid valve on the valve block or damaged pressure relief valve on the compressor can also cause that the vehicle can no longer be lowered or the damping is significantly harder than usual. Furthermore, residual pressure retaining valves, level or acceleration sensors may also be defective. In such case, these parts supply the Airmatic control with improper values, which also makes the air suspension shocks quite hard.
Tips on Changing and Correctly Installing Suspension Parts
In any case, it is advisable to leave the installation or assembly of our spare parts to expert workshop staff.
After installing the front shock absorber, connect the diagnostic device to the vehicle and fill the shock absorbers with compressed air according to the instructions of the vehicle manufacturer and initiate the next steps.
After installing the front air-suspension strut, don't immediately fill the air struts with compressed air, as the axles of the lifted vehicle are hanging down and are therefore outside the control range of the Airmatic control unit. For this reason, after installing the new shock absorber, you should lower the vehicle until the wheels are back in contact with the ground and the distance between the wheel centre and the fender is approximately 40 cm. Please don't lower the vehicle completely, as the air spring strut isn't completely filled with compressed air.
After installing the front air-suspension strut, don't immediately fill the air struts with compressed air, as the axles of the lifted vehicle are hanging down and are therefore outside the control range of the Airmatic control unit. For this reason, after installing the new shock absorber, you should lower the vehicle until the wheels are back in contact with the ground and the distance between the wheel centre and the fender is approximately 40 cm. Please don't lower the vehicle completely, as the air spring strut isn't completely filled with compressed air. In any case, it is advisable to leave the installation or assembly of our spare parts to expert workshop staff.
Save Costs with Air Suspension Struts by Aerosus
To ensure the tightness of the struts, they undergo a tightness and cycle test, conducted by our team of experts in Germany. This ensures a high degree of safety. Since the air struts of an axle usually wear out equally, we always recommend their replacement in pairs. For this purpose, we offer you a 10% discount on pair purchases. In addition, that saves you the second visit to the garage. Furthermore, when buying online, you benefit from the permanently low prices and the two-year warranty.
- A-222-320-82-13
- A-222-320-22-00
- A-222-320-82-13-89
- A-217-320-16-13-89
- A-217-320-40-01-89
- A-222-320-26-00-89
- 217-320-16-00
- 217-320-40-01
- A-217-320-40-01
- A-222-320-26-00
- A-222-320-90-13
- 217-320-16-13-89
- 217-320-40-01-89
- 222-320-26-00-89
- A-217-320-16-00
Air Suspension Specialist
