{"nhtsa_id":11031272,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-13","date":"2026-04-13","document_id":"LI83.70-P-080411","mfr_campaign":null,"replaces":null,"component":"VISIBILITY/WIPER","mfr_system":null,"summary":"Complaint No heating output is available during electric driving operation. In conventional (combustion engine) driving operation, full heating output is available. Cause Possible defect in the N33/5 water heater (high-voltage PTC booster heater) Remedy If the N33/5 water heater (PTC booster heater, high voltage) is defective, it must be replaced with the latest part number. Note: Please refer to the information in XENTRY Parts Information and the latest WIS description. For vehicles manufactured before December 2025 with a BorgWarner water heater, the coolant hoses (inlet and outlet) must also be ordered and installed. For vehicles produced after December 2025, only the N33/5 water heater (PTC booster heater high voltage) needs to be replaced. Follow instructions in XPPI C74 note for the correct parts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031272-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031272-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031272","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"wiper","name":"Wipers and washers","parent":"visibility"}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG C43","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG C43 4MATIC","year_from":2023,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG C63 S E","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG C63 S E 4MATIC+","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG C63 S E PERFORMANCE 4MATIC+","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG CLE53","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG CLE53 4MATIC CABRIOLET","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG CLE53 4MATIC COUPE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG CLE53 4MATIC+","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG CLE53 4MATIC+ CABRIOLET","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLC43","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLC43 4MATIC","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLC43 4MATIC 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CABRIOLET","year_from":2024,"year_to":2026,"match":"base","vehicle_ids":["2024_mercedes-benz_cle","2025_mercedes-benz_cle","2026_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"CLE 300 4MATIC COUPE","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"CLE 450","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"CLE 450 4MATIC","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_mercedes-benz_cle","2025_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"CLE 450 4MATIC CABRIOLET","year_from":2024,"year_to":2026,"match":"base","vehicle_ids":["2024_mercedes-benz_cle","2025_mercedes-benz_cle","2026_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"CLE 450 4MATIC COUPE","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_mercedes-benz_cle"]},{"make":"MERCEDES-BENZ","model":"E 350","year_from":2025,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 350 4MATIC","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 450","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 450 4MATIC","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 450 4MATIC ALL-TERRAIN","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E53 E 4MATIC+","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E53 E 4MATIC+ ALL-TERRAIN","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300","year_from":2023,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300 4MATIC","year_from":2023,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300 4MATIC COUPE","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300 COUPE","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 350 E 4MATIC","year_from":2025,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC43 4MATIC COUPE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"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.","attribution":[]}