How to Remove Citroen Suspension Spheres

Written by mark robinson
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How to Remove Citroen Suspension Spheres
Citroens such as the iconic DS and CX have made extensive use of hydro-pneumatic suspensions. (AUTOMOBILE DS CITROEN image by LESSIOUX from

Citroen is well known for its extensive use of hydro-pneumatic suspensions in their vehicles. These suspensions provide a soft, balanced ride while keeping the vehicle at a level height when carrying large loads. The suspension spheres make up an integral part of the hydro-pneumatic suspension and as time wears on, they will require eventual replacement. Removing the spheres is a relatively simple process that only requires a few simple tools.

Skill level:

Things you need

  • Wheel ramps
  • Strap wrench
  • Combination wrench

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  1. 1

    Place the vehicle on wheel ramps to provide extra clearance for working underneath. Use a strap wrench to loosen the suspension spheres slightly.

  2. 2

    Depressurise the hydro-pneumatic suspension system with the engine running. Set the suspension to "Minimum" and allow the vehicle to sink down. Let the engine run for two to three minutes and then turn the engine off.

  3. 3

    Locate the accumulator valve bleed bolt on the suspension sphere housing. Loosen the bolt with a combination wrench by one full turn.

  4. 4

    Loosen the suspension sphere with the strap wrench. Unscrew and remove the sphere from the vehicle by hand. Remove and discard the O-ring from the lip of the suspension sphere housing. Repeat the procedure for any other suspension spheres that require removal.

  5. 5

    Replace the spheres by inserting the O-ring into the lip of the suspension housing and inserting the sphere itself back into the housing. Tighten the sphere by hand and use a combination wrench to close the accumulator valve bleed bolt. Roll the vehicle off of the wheel ramps when finished.

Tips and warnings

  • Remember to inspect the LHM fluid levels when replacing the suspension spheres. Add LHM to the hydro-pneumatic suspension system, as necessary.

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