How often I should change my air suspension

In general, you should inspect your air suspension every 12,000 miles. Signs that your shocks may need attention include:
·         Diving during heavy braking
·         Wandering on the highway
·         Hitting bumps hard
·         Air leaking

Struts are wear items that absorb countless bumps in the road, which is why replacing struts on a car is recommended every 50,000 miles.