Airmatic Issue Solved! - Mercedes-Benz Forum
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post #1 of 1 (permalink) Old 09-07-2018, 09:43 PM Thread Starter
BenzWorld Junior Member
Date registered: May 2016
Vehicle: 2006 E55 AMG, 1989 300E (sold!)
Location: Denver, CO
Posts: 48
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(Thread Starter)
Airmatic Issue Solved!

I hope this serves to help someone in the future.

I recently replaced my rear air springs/bags with Arnott products. Drove the car for 1 day and then got the "Airmatic Visit Workshop" message. The air bags inflated and deflated correctly, but I still had the message showing up. In the meantime I replaced the rear tires and took it to a dealer to get an alignment.

The dealer said they couldn't align it due to the fault code and then proceeded to charge me money to run the diagnostic on the airmatic. Two days later after giving me the run around, the dealer then told me, as any 'Good' dealer would, that I needed to replace my rear right "Strut" for an easy $1200. I asked for the code that they got and they said they erased it and wouldn't rerun it unless I paid them another diagnostic fee of $140.

Completely irritated, I went and picked up my car and and purchased an iCarsoft MBII reader. Read the codes; 5340: Y54/1, Y54/1y2 and 5390: Y54/1, Y54/1y1. Just a little quick research and all signs point to checking the air bag (NOT STRUT as dealer wanted to replace) electrical connection.

After about 30 minutes of troubleshooting the connector, I figured out that there are 3 parts to the connector. The inner electrical plug (male end), the watertight seal around the plug, and the outer black sheath that connects the plug to the housing. The problem in my case was the small rubber watertight seal was preventing the connector from properly seating. It felt like it was seated due to the seal binding during install. I removed the 'outer' black securing part of the electrical connector from the plug, inserted the plug(male end) into the air bag female connector, made sure the watertight seal was pushed in and then slid the black sheath back on.

Problem solved. Now I have to find someone else who actually knows how to do the alignment...
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