{"nhtsa_id":11012060,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-12-24","date":"2024-12-20","document_id":"LI49.20-P-078714","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Complaint Check engine light illuminated. Fault code P042000 Current or stored in MRG2 control unit. Cause Catalytic converter not operating efficiently Remedy Replace catalytic converter. Note: Additional hardware replacement is not needed unless other symptoms are present. If there are other faults relating to engine operation, diagnose these separately.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012060-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012060-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11012060","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0420"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"C 300","year_from":2022,"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":[]}