{"nhtsa_id":10253720,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-05-01","date":"2024-04-15","document_id":"LI20.00-P-076708","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Check engine lamp activated, coolant warning message, and engine fan running at full speed. Below fault codes stored in N127 PTCU related to LIN network components. U063200, U063287, U02A900, U02A987, U0698E4, U0698E5, U02C800, U02C887, U063B00, U063B87 Under analysis. Disconnect 12V battery and leave for 20 minutes. Reconnect battery and clear fault codes. Perform 2 test drives, with at least 5 minutes in between with ignition off. If vehicle operates normally, it can be released to the owner. If symptom reoccurs create a TIPS case with below information: Initial quick test showing fault codes. Details on events/scenario leading up to symptoms","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253720-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253720-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10253720","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["U02A9","U02C8","U0632","U063B","U0698"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"GLC 300","year_from":2023,"year_to":2024,"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":[]}