{"nhtsa_id":10253698,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-05-01","date":"2024-04-19","document_id":"NCU - 2024040003","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This is to notify you of the Service Campaign Launch to check the regulation valve in 139 Model Year (MY) 2023 GLC (254 platform) vehicles. The vehicles will be visible and flagged in VMI as OPEN on April 19, 2024. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 23 GLC (254 platform) vehicles, the regulation valve in the low temperature coolant circuit may become stuck. This would lead to a fault message in the instrument cluster. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check the coolant valve on the affected vehicles and replace it, if necessary.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253698-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253698-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10253698","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG GLC43","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLC63 S","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300","year_from":2023,"year_to":2023,"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":[]}