E-Class (W211) 2003-2009

-05 Cls 500 airmatic pump shuts off

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Old Oct 7, 2018 | 02:15 PM
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Mercedes Cls 500 w219
-05 Cls 500 airmatic pump shuts off

Before replacing rear left airstrut my airmatic pump stopped inflating the struts. After replacing the strut and the rear height sensor the pump runs for a few seconds and then shuts off. I also need to replace the front struts due to a slow leak on the right side but I can't do it if the pump won't run. All fuses and relays are good. Is it an issue with a valve or co
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Old Oct 7, 2018 | 02:32 PM
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From my observation the only way the pump can stop after few seconds is when it reaches designated pressure (ca 160 psi).
You need a scanner that can monitor the pressure and also operate the valves.
Sounds like your valves are not operating.
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Old Oct 7, 2018 | 03:40 PM
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Mercedes Cls 500 w219
Originally Posted by kajtek1
From my observation the only way the pump can stop after few seconds is when it reaches designated pressure (ca 160 psi).
You need a scanner that can monitor the pressure and also operate the valves.
Sounds like your valves are not operating.
that's what I'm guessing also.. Thank you for your time and input!
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