2026 GLE 450 A/C Issues – Anyone Else Experienced This?
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Newbie
Joined: Aug 2020
Posts: 4
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C300
2026 GLE 450 A/C Issues – Anyone Else Experienced This?
Looking for feedback from other GLE owners.
I purchased a brand-new GLE 450 on May 1st with only 14 miles on it from a dealership in Illinois. Unfortunately, the A/C was not functioning properly from day one.
I later shipped the vehicle to Florida, where a Mercedes dealership attempted repairs. While the front A/C seems improved, it still intermittently stops working and then comes back on, and the rear A/C still does not appear to be functioning correctly at all.
This is actually my second GLE 450, and I've never experienced anything like this before. I'm honestly surprised to be dealing with a major A/C issue on a vehicle that was brand new.
A few questions for the group:
Appreciate any advice or experiences others can share.
I purchased a brand-new GLE 450 on May 1st with only 14 miles on it from a dealership in Illinois. Unfortunately, the A/C was not functioning properly from day one.
I later shipped the vehicle to Florida, where a Mercedes dealership attempted repairs. While the front A/C seems improved, it still intermittently stops working and then comes back on, and the rear A/C still does not appear to be functioning correctly at all.
This is actually my second GLE 450, and I've never experienced anything like this before. I'm honestly surprised to be dealing with a major A/C issue on a vehicle that was brand new.
A few questions for the group:
- Has anyone experienced similar A/C problems on a new GLE 450?
- Was the issue ultimately resolved, and if so, what was the fix?
- Has anyone successfully worked through a manufacturer buyback, replacement vehicle, or dealership exchange without hiring an attorney?
- Any suggestions on the best way to escalate this through Mercedes-Benz corporate?
Appreciate any advice or experiences others can share.
Newbie
Joined: Feb 2016
Posts: 13
Likes: 5
2026 GLE53
I believe it has been stated that a possible fault exists with the A/C compressors. They are electric as there isn't any serpentine belt in the front of the car. I am experiencing intermittent troubles with my 26 GLE 53.
Super Member
Joined: Jun 2025
Posts: 794
Likes: 254
From: USA
Front intermittent + rear dead = refrigerant distribution or rear expansion valve. Common GLE issue there's a TSB for rear A/C lines or solenoid.
Tell dealer to check rear expansion valve, rear evaporator pressure, and HVAC software update.
If 3+ visits fail, call MBUSA directly, skip the dealer. Open a case, get a regional rep.
Buyback possible without lawyer after 3 attempts document everything. Don't accept topped off gas as a fix.
Tell dealer to check rear expansion valve, rear evaporator pressure, and HVAC software update.
If 3+ visits fail, call MBUSA directly, skip the dealer. Open a case, get a regional rep.
Buyback possible without lawyer after 3 attempts document everything. Don't accept topped off gas as a fix.
