{"nhtsa_id":11000621,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-06-01","date":"2024-05-30","document_id":"LI01.60-P-077807","mfr_campaign":"LI01.60-P-077807","replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Engine oil seeping from right rear of engine at upper area of timing case cover. Porosity in casting of timing case cover. Remedy Clean area around exhaust bracket and apply leak detection spray. Proceed with below steps if leakage is confirmed from orange bolt shown in attachment. -Remove orange bolt shown in attachment and thoroughly clean bore with brake cleaner. -Ensure bore is completely dry. -Use new bolt N000000007063 and coat threads with Loctite 222. -Install bolt and torque to 20 Nm. -Allow at least 12 hours before starting engine. Then recheck for leakage.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000621-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000621-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11000621","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"C 300","year_from":2022,"year_to":2022,"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":[]}