BMW Airmatic Suspension Pump 37226787616 37226778773 37221092349 for BMW E39 520d 530i

Effect

Enhance maneuverability: When encountering uneven roads or obstacles, the driver can raise the chassis to increase the ground clearance, preventing the vehicle's bottom from scraping, and enhancing the driving capability.
Keep the vehicle level: When the vehicle's load increases (such as when fully loaded with passengers or cargo), the air pump will automatically inflate the rear axle airbags to ensure the vehicle remains level, preventing "nodding" and thus ensuring the stability of the vehicle during travel and the accuracy of the light beam angle.

Working Process

Inflation stage: The motor drives the piston to compress air, which enters the air storage tank through the check valve. The machine will automatically stop when the pressure reaches the set value (such as 8bar).
Regulation stage: The control unit, based on the signal from the vehicle body height sensor, inflates or deflates the air spring through the distribution valve. Each regulation takes 3 to 5 seconds.
Safety protection: When the pressure exceeds 12bar, the safety valve opens to relieve pressure. The motor will automatically cut off power when it overheats.

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