Air Ride Adaptive Suspension failure in cold climates?

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dbphillips

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Agreed - not sure that I have seen another one like that - I originally posted the pic. My (now former) Yukon is the one to the right. I drove by the lot this evening - two more added to the waiting-for-parts pile - five weeks and counting for repair parts. I sold mine back to a GM dealer last week. It is an interesting world for sure - drove it a year and it was still worth more than what I paid (including the lost sales tax). Now, I am patiently waiting to see whether German engineering can live up to its reputation (I know that is naive). Anyone know if there’s a board for MB GLS450’s!?! Take care.
Sooo. Had a GLS 450. Air suspension worked great, both hooning around and towing our 26' TT. But I was definitely concerned about repairs, aaand it burned our garage down, so no more Mercedes for me. Plus, no more diesels in the Benz. The LM2 is a frigging dream, exhaust leaks not withstanding. Dying to get my Derringer.

Sorry to hear of issues with T1XX air suspension. Thank God I didn't pony up for it. I, too, was apprehensive. I do want to get some air helpers, though.
 

WalleyeMikeIII

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Sooo. Had a GLS 450. Air suspension worked great, both hooning around and towing our 26' TT. But I was definitely concerned about repairs, aaand it burned our garage down, so no more Mercedes for me. Plus, no more diesels in the Benz. The LM2 is a frigging dream, exhaust leaks not withstanding. Dying to get my Derringer.

Sorry to hear of issues with T1XX air suspension. Thank God I didn't pony up for it. I, too, was apprehensive. I do want to get some air helpers, though.
According to the TSB, was resolved by new front air spring seal design; and in production starting Dec 2021.

So far my air suspension has been trouble free; I’m in MN, have seen our share of cold this year already.
 

nussbapj

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That bulletin seems to identify the 2021 and 2022 models and I'm assuming it identifies the parts to supposedly fix the issue. Do you think that means they used proper seals on 2023 models to hopefully avoid the issue all together? I've been wanting to get an air ride equipped Yukon but then reading about the issues that people have had with air ride in cold weather and living in Northern Ontario has got me second guessing it.
Unfortunately, this issue happened to me on my 2023 Yukon with 10k miles on it here in Chicago. We had a few days below 0 with windchills around -20 to -30. The front end lost all air as described in the bulletin. Towed it to the dealer this morning.
 

ToughCapy

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We have a 2023 Tahoe High Country with 1500 miles. It was really cold here last week (-35 degrees Celcius). 2 mornings in a row we came out to the vehicle with the front end very low compared to the rear. "Service Leveling System" and 'Leveling System Unavailable" notifications in the DIC, ride height controls did not work. Photo attached.

We were having an occasional issue 2 weeks prior when it was below 0 degrees Celcius prior to the cold snap, same notifications in the DIC and ride controls not working. But the vehicle stayed level, it was just stuck at the exit ride height. We disabled the easy exit/entrance and issue went away until this week.

Unhooking battery for 2-3 minutes reset the issue, then we could drive normally. Its at the dealership now, picking up tomorrow. They are replacing a module.
 

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