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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 54028
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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My name Alex i have 08 merc-gl450 replace 2-weeks ago two

Customer Question

Hello my name Alex i have 08 merc-gl450 replace 2-weeks ago two rear air bags for suspension. I still have airsuspension code C1503, I dont know if my Air pump giving up or have onother leak at resuar tank. Thank you. Help me please.
Submitted: 2 years ago.
Category: Mercedes
Expert:  Marty replied 2 years ago.

Hi Alex, A C1503 code is usually going to be caused by a weak air compressor. The system should be inspected for leakage by listening for leaks when the compressor is running and by spraying all of the lines and air bags with a soapy water solution. If no leaks are found the compressor will likely need replacing.

Let me know if you have any questions.


Customer: replied 2 years ago.
Thank you! I doubt check for additional leaks one more time
Expert:  Marty replied 2 years ago.

You're quite welcome.

Let me know if you need anything else.

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