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With Air Suspension (Ser)

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

All pressurized air suspension components contain high pressure air (up to 220 psig). Use extreme caution when inspecting for leaks. Wear safety goggles and adequate protective clothing when inspecting or servicing the air suspension system. A sudden release of air under this amount of pressure can cause possible serious or fatal injury.

WARNING:

Support the vehicle by supplemental means before performing any work on the air suspension system to prevent the vehicle from changing height. Before any given component is to be serviced it must be deflated. Servicing the air suspension system without supplemental support, or with pressure in the specific component, can cause possible serious or fatal injury.

CAUTION:

When removing an air line from a component and the air line is to be reused, do not remove the 90° fitting or the brass fitting from the air line. If either is removed, the air line must be replaced. New components have air line fittings attached; however if the original air line is used the original fitting must also be used. Do not remove protective caps or plugs from air lines or components until ready to install the air line to prevent moisture or dirt intrusion. All air line fittings must be hand started to avoid cross threading.

NOTE:

The rear air springs can only have the fittings removed and re-installed 5 times before there will be a leakage concern. 

Fig 1: Air Lines/Fittings At Rear Air Suspension Spring Assemblies
GC0154547Courtesy of CHRYSLER GROUP, LLC
  1. Install the air spring (3) by pushing in the top cap of the air spring into the frame so that the clips (2) are engaged.
  2. If a new rear air spring is used, remove the cap/fitting from the air line connection of the rear air spring.
  3. Using the original fitting, connect the air line (1) to the rear air spring and tighten to 3.5 N.m (31 in. lbs.).
  4. Lower vehicle on hoist so that bottom cap of air spring makes contact or is a few mm above the axle.
    Fig 2: Air Spring Keying Feature
    GC0154664Courtesy of CHRYSLER GROUP, LLC
  5. Ensure air spring is positioned so that the keying feature (1) is faced towards the front of the vehicle on the axle. Improperly positioned air springs which are subsequently filled will most likely be damaged. 
  6. With a scan tool, using the routines under the Air Suspension Control Module (ASCM), perform the following:
    • Run the Fill Spring From Reservoir routine on the spring that was installed. Choose the Short Time Fill  option from the menu selections and the spring will inflate for approximately one second, then verify the air spring is properly seated into its mounting sockets, and any wrinkles in the air bag have unfolded properly.
    • Run the Fill Spring From Reservoir routine on the spring that was installed. Choose the Complete Fill  option from the menu selections.
  7. Install the tire and wheel. Refer to WHEELS, STANDARD PROCEDURE .
  8. Remove the support and lower the vehicle.
  9. With a scan tool, using the routines under the Air Suspension Control Module (ASCM), perform the following:
    • Command the vehicle to Normal Ride Height.
    • Run the Air Mass Calculation routine on the air suspension system.
    • If necessary, add to the system or deflate to atmosphere using the ASCM routines, then repeat the Air Mass Calculation routine again until system responds with Air Mass OK (188 - 216 bar-liters).
    • Enable the air suspension system.
  10. Perform the ASCM Verification Test. Refer to STANDARD PROCEDURE .
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