{"nhtsa_id":11014223,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-02-12","date":"2025-02-06","document_id":"LI20.10-P-078510","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Complaint Red cooling system malfunction warning due to overheat. Low engine performance. Check engine light on. Fault codes may be stored: P21814B The cooling system has a malfunction. There is a fault due to overtemperature. P2B8500 The rpm of the coolant pump is too low. Cause Various Remedy Check for loose plug at electrical connectors of high temp coolant pump (M43/10 or M75/11) by gently pulling on connector housings. Create a TIPS case and submit to powertrain team inbox if a loose plug is found at the coolant pump. Include: -Initial quick test -Details on any damage found to engine or cooling system. Include photos if applicable. -Any other relevant details.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014223-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014223-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014223","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P2181","P2B85"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"C 300","year_from":2022,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 350","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 350 4MATIC","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 450","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 450E 4MATIC","year_from":2024,"year_to":2025,"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":[]}