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Service bulletin LI83.30-P-077763

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11018322
Published by NHTSA2025-05-15
Manufacturer's numberLI83.30-P-077763
Manufacturer's date2025-05-12
NHTSA componentVISIBILITY/WIPER

NHTSA's summary

Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. 2. Do NOT remove the expansion valve from the evaporator prior to being advised to in a TIPS case. 3. Initial Quick Test 4. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 5. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 6. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 7. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 8. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 9. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 10. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. NOTE: (Applies to all 167's) • Please see the list of WIS documents for forming gas leak check and recharging of the system. • All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. • Ensure that a full vacuum is pulled on the system for at least 30 minutes after replacement • Condenser replacement is NOT authorized as a suitable repair in lieu of the dryer not being available.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Glass, wipers and mirrors, Wipers and washers

Vehicles listed
MERCEDES-BENZ AMG GLE532021 to 2022
MERCEDES-BENZ AMG GLE53 4MATIC+2023 to 2024
MERCEDES-BENZ AMG GLE63 S2021 to 2022
MERCEDES-BENZ AMG GLE63 S 4MATIC+2023 to 2024
MERCEDES-BENZ AMG GLS632020 to 2022
MERCEDES-BENZ AMG GLS63 4MATIC+2023 to 2024
MERCEDES-BENZ GLE 3502020 to 2024
MERCEDES-BENZ GLE 350 4MATIC2025
MERCEDES-BENZ GLE 4502020 to 2024
MERCEDES-BENZ GLE 450E 4MATIC2024 to 2025
MERCEDES-BENZ GLE 5802020 to 2021
MERCEDES-BENZ GLE 580 4MATIC2022 to 2024
MERCEDES-BENZ GLS 4502020
MERCEDES-BENZ GLS 450 4MATIC2022 to 2024
MERCEDES-BENZ GLS 580 4MATIC2020
MERCEDES-BENZ GLS 580 4MATIC2022 to 2024
MERCEDES-BENZ GLS5802021
MERCEDES-MAYBACH GLS 6002021
MERCEDES-MAYBACH GLS 600 4MATIC2022 to 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.