Yellow coolant warning system message appears in instrument cluster
Mercedes-Benz technical service bulletin LI20.40-P-070996 for 2020-2024 Mercedes-Benz GLE 350, 2019-2021 Mercedes-Benz GLS 450 and 2020-2024 Mercedes-Benz GLE 450 and others.
- Bulletin number
- LI20.40-P-070996
- Component
- Engine
- Summary
- Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy If other fault codes related to engine fan are present, process these first. Replace engine fan with part as specified in XENTRY parts information. Group 50/015. Note: Do not install a lower wattage fan than what was originally installed in vehicle.
Owners of these vehicles have filed 135 complaints in the engine category.
Vehicles covered
- Mercedes-Benz GLE 350 2020-2024 20202021202220232024
- Mercedes-Benz GLS 450 2019-2021 201920202021
- Mercedes-Benz GLE 450 2020-2024 20202021202220232024
- Mercedes-Benz GLS 450 4matic 2022-2024 202220232024
- Mercedes-Benz AMG Gle53 2021-2022 20212022
- Mercedes-Benz AMG Gle53 4matic+ 2023-2024 20232024
- Mercedes-Benz Gle 450e 4matic 2024 2024
- Mercedes-Benz GLS 580 4matic 2020, 2022-2024 2020202220232024
- Mercedes-Benz AMG Gls63 2020-2022 202020212022
- Mercedes-Benz GLE 580 2020-2021 20202021
- Mercedes-Benz GLS580 2021 2021
- Mercedes-Benz Gle 350 E 2020-2021 20202021
- Mercedes-Benz AMG Gls63 4matic+ 2023-2024 20232024
- Mercedes-Benz AMG Gle63 S 2021-2022 20212022
- Mercedes-Benz Gle 580 4matic 2022-2024 202220232024
- Mercedes-Benz AMG Gle63 S 4matic+ 2023-2024 20232024
- Mercedes-Maybach GLS 600 2021 2021
- Mercedes-Maybach GLS 600 4matic 2022-2024 202220232024
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