Mercedes-Benz AMG CLS53 2017–2024 — technical service bulletin

Bulletin LI83.20-P-079559 · NHTSA communication 11020874 · issued Jul 18, 2025

Technical service bulletin

communication type

Visibility/wiper

component

2017–2024

model years

vehicle entries

Official summary

Complaint No cooling output, compressor inoperative. Cause Currently under analyzed. Remedy Please create a TIPS case and provide the following information: -Provide the refrigerant filling capacity -Current actual values from XENTRY (compressor values) -Has there previously been work on the refrigerant circuit in the vehicle? -Check air conditioning system for leak tightness as per WIS -Document results and possible leaks in TIPS case

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.