Service bulletin LI83.30-P-079850
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11027566 |
| Published by NHTSA | 2026-01-09 |
| Manufacturer's number | LI83.30-P-079850 |
| Manufacturer's date | 2026-01-07 |
| NHTSA component | VISIBILITY/WIPER |
NHTSA's summary
Complaint Customer states the AC either does not cool/has poor performance or heat is insufficient. Cause Many possible root causes Remedy AC Diagnosis (General) Initial Steps Verify Customer Concern • Confirm the issue reported by the customer. Compare to Like Vehicle • Determine if the behavior is normal by comparing with a similar vehicle. Determine Your Game and Players • Identify the diagnostic strategy and involved components/systems. Testing • Perform relevant diagnostic tests. Refrigerant Quantity • Record the amount of refrigerant recovered and compare it to the specified value (if applicable). • Forming Gas is the ONLY approved leak test method. (DYE is NOT approved) TIPS Case Submission Requirements Cooling Capacity Test (If System Has a Charge) Before Repairs Gauge Readings • High and Low pressure readings (from machine or separate gauges). Leak Detection (if applicable) • PPM of any leaks found. XENTRY Printouts • Climate control AVs. • HV compressor AVs (for heat and AC systems). Thermometer Readings • Left and right dash vents. • Center vent, footwell, and/or rear vents (if concern is localized). Ambient Conditions • Temperature and humidity from OCP AVs (if available). After Repairs - Warranty Submission Requirements on the Repair Order Gauge Readings • High and Low pressure readings before and after repairs. Thermometer Readings • Left and right dash vents before and after. • Center vent, footwell, and/or rear vents before and after (if localized concern). Documentation • Complaint Analysis, Game/Players, and Testing Steps. • Include expected results and technical justification for the diagnosis. • Avoid listing R/I steps—focus on diagnostic reasoning and root cause. • All prior measurements need to be documented on the repair order. OP code usage: 831232 - Max .5 for Cooling Capacity Test 831040 - Only to be utilized if you have a fault code and are actively diagnosing that fault code 831762 - This includes basic leak check 831285 - This can only be used in extenuating circumstances where a leak cannot be found
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
| MERCEDES BENZ C 300 4MATIC | 2018 |
|---|---|
| MERCEDES BENZ E500 | 2003 to 2008 |
| MERCEDES BENZ G550 | 2009 |
| MERCEDES-BENZ A 220 | 2019 to 2022 |
| MERCEDES-BENZ A 220 4MATIC | 2020 to 2021 |
| MERCEDES-BENZ AMG A35 | 2020 to 2021 |
| MERCEDES-BENZ AMG A35 4MATIC | 2020 |
| MERCEDES-BENZ AMG C43 | 2023 to 2024 |
| MERCEDES-BENZ AMG C43 4MATIC | 2023 to 2026 |
| MERCEDES-BENZ AMG C63 | 2015 to 2019 |
| MERCEDES-BENZ AMG C63 S | 2019 |
| MERCEDES-BENZ AMG C63 S E | 2024 |
| MERCEDES-BENZ AMG C63S | 2015 to 2018 |
| MERCEDES-BENZ AMG CLA35 | 2020 to 2024 |
| MERCEDES-BENZ AMG CLA35 4MATIC | 2020 |
| MERCEDES-BENZ AMG CLA35 4MATIC | 2026 |
| MERCEDES-BENZ AMG CLA45 | 2014 to 2019 |
| MERCEDES-BENZ AMG CLA45S 4MATIC+ | 2026 |
| MERCEDES-BENZ AMG CLE53 | 2024 |
| MERCEDES-BENZ AMG CLE53 4MATIC CABRIOLET | 2026 |
| MERCEDES-BENZ AMG CLE53 4MATIC COUPE | 2026 |
| MERCEDES-BENZ AMG CLE53 4MATIC+ | 2024 to 2025 |
| MERCEDES-BENZ AMG CLE53 4MATIC+ CABRIOLET | 2025 |
| MERCEDES-BENZ AMG CLS53 | 2019 to 2021 |
| MERCEDES-BENZ AMG E43 | 2017 to 2018 |
| MERCEDES-BENZ AMG E53 | 2019 to 2023 |
| MERCEDES-BENZ AMG E53E | 2023 |
| MERCEDES-BENZ AMG E63 S | 2023 |
| MERCEDES-BENZ AMG EQE | 2023 to 2025 |
| MERCEDES-BENZ AMG EQE SUV 4MATIC | 2024 to 2025 |
| MERCEDES-BENZ AMG EQS | 2022 to 2024 |
| MERCEDES-BENZ AMG G 55 | 2003 to 2009 |
| MERCEDES-BENZ AMG G63 | 2013 to 2024 |
| MERCEDES-BENZ AMG G65 | 2016 to 2018 |
| MERCEDES-BENZ AMG GLA 35 | 2024 to 2025 |
| MERCEDES-BENZ AMG GLA 35 4MATIC | 2024 |
| MERCEDES-BENZ AMG GLA 35 4MATIC | 2026 |
| MERCEDES-BENZ AMG GLA35 | 2021 to 2023 |
| MERCEDES-BENZ AMG GLA45 | 2020 to 2023 |
| MERCEDES-BENZ AMG GLB35 | 2020 to 2025 |
| MERCEDES-BENZ AMG GLB35 4MATIC | 2026 |
| MERCEDES-BENZ AMG GLC43 | 2024 |
| MERCEDES-BENZ AMG GLC43 4MATIC | 2024 to 2026 |
| MERCEDES-BENZ AMG GLC43 4MATIC COUPE | 2024 to 2025 |
| MERCEDES-BENZ AMG GLC63 S E | 2024 to 2025 |
| MERCEDES-BENZ AMG GLE43 | 2016 to 2019 |
| MERCEDES-BENZ AMG GLE53 | 2021 to 2022 |
| MERCEDES-BENZ AMG GLE53 4MATIC+ | 2023 to 2025 |
| MERCEDES-BENZ AMG GLE53 4MATIC+ COUPE | 2025 |
| MERCEDES-BENZ AMG GLE63 S | 2021 to 2022 |
| MERCEDES-BENZ AMG GLE63 S 4MATIC+ | 2023 to 2024 |
| MERCEDES-BENZ AMG GLE63 S 4MATIC+ COUPE | 2025 |
| MERCEDES-BENZ AMG GLE63S | 2018 |
| MERCEDES-BENZ AMG GLS63 | 2020 to 2022 |
| MERCEDES-BENZ AMG GLS63 | 2026 |
| MERCEDES-BENZ AMG GLS63 4MATIC+ | 2023 to 2025 |
| MERCEDES-BENZ AMG GLS63E | 2023 |
| MERCEDES-BENZ AMG GT | 2017, 2018, 2019, 2020, 2021 |
| MERCEDES-BENZ AMG GT 63 S E COUPE | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT C | 2018, 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT R | 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT S | 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT43 | 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT53 | 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT55 | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63 | 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63 S | 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63 S E | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63 S E PERFORMANCE 4MATIC+ | 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG GT63S | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ AMG S 63 E 4MATIC+ | 2023 to 2025 |
| MERCEDES-BENZ AMG S63 | 2014 to 2019 |
| MERCEDES-BENZ AMG S65 | 2015 to 2017 |
| MERCEDES-BENZ AMG SL43 | 2023 to 2026 |
| MERCEDES-BENZ AMG SL55 | 2022 to 2025 |
| MERCEDES-BENZ AMG SL63 | 2022 to 2023 |
| MERCEDES-BENZ AMG SL63 | 2025 |
| MERCEDES-BENZ AMG SL63 S E | 2024 to 2025 |
| MERCEDES-BENZ AMG SLS | 2011 to 2012 |
| MERCEDES-BENZ C 300 | 2017 to 2026 |
| MERCEDES-BENZ C 300 4MATIC | 2021 to 2026 |
| MERCEDES-BENZ C 350 E | 2018 |
| MERCEDES-BENZ C300 | 2015 to 2016 |
| MERCEDES-BENZ C350E | 2016 to 2017 |
| MERCEDES-BENZ C400 | 2015 |
| MERCEDES-BENZ CLA 250 | 2018 to 2026 |
| MERCEDES-BENZ CLA 250 4MATIC | 2020 to 2021 |
| MERCEDES-BENZ CLA 250 4MATIC | 2026 |
| MERCEDES-BENZ CLA 250+ (EV) | 2026 |
| MERCEDES-BENZ CLA 350 4MATIC (EV) | 2026 |
| MERCEDES-BENZ CLA250 | 2014 to 2017 |
| MERCEDES-BENZ CLE 300 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 300 4MATIC | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 300 4MATIC CABRIOLET | 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 300 4MATIC COUPE | 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 450 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 450 4MATIC | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 450 4MATIC CABRIOLET | 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLE 450 4MATIC COUPE | 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MERCEDES-BENZ CLS 450 | 2019 to 2023 |
| MERCEDES-BENZ E 300 | 2018 to 2019 |
| MERCEDES-BENZ E 350 | 2020 to 2023 |
| MERCEDES-BENZ E 350 4MATIC | 2024 to 2026 |
| MERCEDES-BENZ E 400 | 2018 |
| MERCEDES-BENZ E 450 | 2019 to 2023 |
| MERCEDES-BENZ E 450 4MATIC | 2024 to 2026 |
| MERCEDES-BENZ E 450 4MATIC ALL-TERRAIN | 2024 to 2026 |
| MERCEDES-BENZ E300 | 2017 |
| MERCEDES-BENZ E400 | 2017 |
| MERCEDES-BENZ E53 E 4MATIC+ | 2025 |
| MERCEDES-BENZ EQB 250+ | 2023 to 2025 |
| MERCEDES-BENZ EQB 300 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ EQB 350 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ EQE 350 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQE 350+ | 2023 to 2025 |
| MERCEDES-BENZ EQE 500 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQE SUV 350 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQE SUV 350+ | 2023 to 2025 |
| MERCEDES-BENZ EQE SUV 500 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQS 450 | 2022 |
| MERCEDES-BENZ EQS 450 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQS 450+ | 2022 to 2025 |
| MERCEDES-BENZ EQS 580 | 2022 to 2024 |
| MERCEDES-BENZ EQS 580 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ EQS SUV 450 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ EQS SUV 450+ | 2023 to 2025 |
| MERCEDES-BENZ EQS SUV 580 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ G 550 | 2019 |
| MERCEDES-BENZ G 550 | 2025 |
| MERCEDES-BENZ G 580 EV | 2025 |
| MERCEDES-BENZ G550 | 2016 to 2018 |
| MERCEDES-BENZ GLA 250 | 2020 to 2026 |
| MERCEDES-BENZ GLA 250 4MATIC | 2021 |
| MERCEDES-BENZ GLA 250 4MATIC | 2024 |
| MERCEDES-BENZ GLA 250 4MATIC | 2026 |
| MERCEDES-BENZ GLB 250 | 2020 to 2026 |
| MERCEDES-BENZ GLB 250 4MATIC | 2020 to 2021 |
| MERCEDES-BENZ GLB 250 4MATIC | 2026 |
| MERCEDES-BENZ GLC 300 | 2020 to 2026 |
| MERCEDES-BENZ GLC 300 4MATIC | 2023 to 2026 |
| MERCEDES-BENZ GLC 300 4MATIC COUPE | 2024 to 2026 |
| MERCEDES-BENZ GLC 300 COUPE | 2024 |
| MERCEDES-BENZ GLC 350 E 4MATIC | 2025 to 2026 |
| MERCEDES-BENZ GLC43 4MATIC COUPE | 2026 |
| MERCEDES-BENZ GLE 350 | 2020 to 2024 |
| MERCEDES-BENZ GLE 350 4MATIC | 2024 to 2026 |
| MERCEDES-BENZ GLE 450 | 2020 to 2024 |
| MERCEDES-BENZ GLE 450 4MATIC | 2025 to 2026 |
| MERCEDES-BENZ GLE 450 4MATIC COUPE | 2025 |
| MERCEDES-BENZ GLE 580 | 2020 to 2021 |
| MERCEDES-BENZ GLE 580 4MATIC | 2022 to 2024 |
| MERCEDES-BENZ GLE450 | 2016 to 2017 |
| MERCEDES-BENZ GLE63S | 2016 to 2017 |
| MERCEDES-BENZ GLS 450 | 2020 |
| MERCEDES-BENZ GLS 450 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ GLS 580 4MATIC | 2020 |
| MERCEDES-BENZ GLS 580 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ GLS 600 | 2023 |
| MERCEDES-BENZ GLS450 | 2021 |
| MERCEDES-BENZ GLS580 | 2021 |
| MERCEDES-BENZ S 450 | 2018 to 2020 |
| MERCEDES-BENZ S 500 | 2021 |
| MERCEDES-BENZ S 500 | 2023 |
| MERCEDES-BENZ S 500 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ S 560 E | 2019 to 2020 |
| MERCEDES-BENZ S 580 | 2021 |
| MERCEDES-BENZ S 580 | 2023 |
| MERCEDES-BENZ S 580 4MATIC | 2022 to 2025 |
| MERCEDES-BENZ S 580 E | 2023 |
| MERCEDES-BENZ S 580 E 4MATIC | 2023 to 2025 |
| MERCEDES-BENZ S550 | 2014 to 2017 |
| MERCEDES-BENZ S550 4MATIC | 2016 to 2017 |
| MERCEDES-BENZ S550 HYBRID | 2016 |
| MERCEDES-BENZ S550E | 2015 |
| MERCEDES-BENZ S550E | 2017 |
| MERCEDES-BENZ S600 | 2015 to 2017 |
| MERCEDES-BENZ S65 AMG | 2017 |
| MERCEDES-BENZ SLS | 2013 to 2014 |
| MERCEDES-MAYBACH EQS SUV 680 4MATIC | 2024 to 2025 |
| MERCEDES-MAYBACH GLS 600 | 2021 |
| MERCEDES-MAYBACH GLS 600 4MATIC | 2022 to 2025 |
| MERCEDES-MAYBACH S 560 4MATIC | 2018 to 2020 |
| MERCEDES-MAYBACH S 580 | 2021 |
| MERCEDES-MAYBACH S 580 4MATIC | 2022 to 2025 |
| MERCEDES-MAYBACH S 650 | 2018 to 2020 |
| MERCEDES-MAYBACH S 680 | 2023 to 2024 |
| MERCEDES-MAYBACH S 680 4MATIC | 2022 to 2023 |
| MERCEDES-MAYBACH S 680 4MATIC | 2025 |
| MERCEDES-MAYBACH S550 | 2017 |
| MERCEDES-MAYBACH S600 | 2017 |
| MERCEDES-MAYBACH S650 | 2017 |
| MERCEDES-MAYBACH SL 680 4MATIC+ | 2026 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.