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Don 'Mo Lurch'
Don 'Mo Lurch', Mercedes Mechanic
Category: Mercedes
Satisfied Customers: 20437
Experience:  Heavy Line Mech-, Mobile Electronics. Sales, Installation & Repair for 30 years. R/S, etc.
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The compressor for my air suspension does not swich off when

Customer Question

The compressor for my air suspension does not swich off when i park the car abd switch it off.
JA: How has the ride been lately? Have you noticed any fluid under the car?
Customer: No fluid under the car. No problems when i ride the car.
JA: What is the model/year of your Mercedes?
Customer: 2008 gl 320 cdi
JA: Are you fixing your GL yourself? What have you tried so far?
Customer: Fix my self. I was worried that the compressor will over heat as i could already smell ir. I pulled the relay out and the compressor stopped. It did not start again and when i drove the car again and parked it the compressor switched off.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 8 days ago.
Category: Mercedes
Expert:  Don 'Mo Lurch' replied 8 days ago.

This sounds like the Relay is bad.
It takes a considerable amount of AMP's & continuous on / off of the Relay to operate the Compressor.
IF removal & reinstall of the Relay returned the system to normal operation, I would replace the Relay.
Otherwise, use of Dealer Scan Tool is needed to Test the Control Module & System to help pinpoint
apprx 1 hour labor

Customer: replied 8 days ago.
Thank you
Expert:  Don 'Mo Lurch' replied 8 days ago.

Thanks for using J/A

Expert:  Don 'Mo Lurch' replied 8 days ago.

did you need more information?

please respond or rate my answer

Expert:  Don 'Mo Lurch' replied 5 days ago.

Did you have any other questions?
I see you have viewed my reply but have not selected a rating.
Rating does not incur any additional costs, it simply allows me to be compensated for my time here.
It also does not close the question, you can follow up at any time.
Thank you.