13/06/2023 14:19:30

Air Spring Module - Rear - LH (Remove and Replace)

Correction Code 31106002

The below procedure is for models with air suspension built before April 24, 2019. For models equipped with adaptive damping built from April 24, 2019, refer to Adaptive Air Spring Module - Rear - LH (Remove and Replace).
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Note
When replacing an air spring module for failure, inspect all air spring modules for leak, wear, or reduced performance, and replace them as necessary.

Removal

  1. Remove the rear center apron and inspect the vehicle for a Schrader fill valve on the RH shock tower. See Underhood Apron - Center - Rear (Remove and Replace).
    • If the vehicle does not have a Schrader fill valve, install it now. See Fill Valve - Air (Retrofit). Then continue to the next step.
    • If the vehicle has a Schrader fill valve, continue to the next step.
  2. Raise the vehicle and depressurize the rear LH air spring module. See Air Suspension - Pressurize/Depressurize - One Air Spring.
  3. Remove the rear LH arch liner. See Wheel Arch Liner - Rear - LH (Remove and Replace) .
  4. Release the fitting for the air suspension line (brown) from the rear LH air spring module (torque 2 Nm).
  5. For each released end of an air suspension line, use a flat blade screwdriver to snap off the old collet, and discard the collet and nut (VOSS fitting).
  6. Use a stand to partially support the rear LH suspension.
  7. Remove the bolt that secures the air spring module to the knuckle (torque 140 Nm).
  8. Remove the stand and lower the vehicle to a working height.
  9. Remove the upper LH parcel shelf support. See Support - Parcel Shelf - LH (Remove and Replace) .
  10. Remove the foam HVAC ducting.
  11. Remove any insulation that covers the nuts that secure the air spring module.
  12. Remove the nuts (x3) (torque 39 Nm).
  13. Carefully remove the air spring module from the vehicle.

Installation

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CAUTION
Replace all nylon-insert locknuts.
Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Replace all patchbolt(s).
Informational PurposesAn informational icon, calling your attention
Note
Clean the affected areas before installation.
Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Only fully tighten suspension nuts and bolts when the vehicle is on a 4-post lift and the suspension is in the ride height position.

Installation procedure is the reverse of removal, except for the following:

  1. Install and hand-tighten a new collet and nut (VOSS fitting).
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    Note
    A plastic plug holds the fitting together before and during installation.
  2. Remove the plastic plug from the new fitting.
  3. Tighten the new fitting (torque 2 Nm).
  4. Insert the air suspension line fully into the fitting, and then lightly pull on the line to make sure that it is secure.
  5. Make sure that all air suspension lines are securely reconnected before continuing.
  6. Refill the new air spring module or air suspension system according to the circumstances of the repair:
  7. Raise the vehicle on a 4-post lift and torque all suspension components while the vehicle is at ride height.
  8. Refer to the Alignment Requirement tables to determine whether an EPAS alignment check (EC) or four wheel alignment check (AC) is necessary. If performed, add the alignment check/adjust as a separate activity. See Alignment Requirement - Suspension.