{"nhtsa_id":11005276,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-26","date":"2024-07-08","document_id":"LI01.20-P076894","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Complaint Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a malfunction Cause The partial-load ventilation valve (a part of the intake line assembly) may not work as intended. Remedy Model year 2018 C300 | Model year 2016-2018 GLC300 and E300 | ALL model year SLK/SLC300 and hybrid variants Performed guided test for fault code P052E71. Replace intake line assembly if necessary per results of the guided test. This LI will be updated once the software solution is available for model year 2018 C300 and 2016-2018 GLC300 and E300 vehicles. Model year 2015-2017 C300 | Model year 2019 GLC300 and E300 Perform software update for N3/10 Engine control unit. Replacement of intake line assembly is not required.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11005276-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11005276-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11005276","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P052E"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"C 300","year_from":2017,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"C 350 E","year_from":2018,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"C300","year_from":2015,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"C350E","year_from":2016,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E 300","year_from":2018,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"E300","year_from":2017,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300","year_from":2018,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 350 E","year_from":2018,"year_to":2018,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 350 E","year_from":2020,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC300","year_from":2016,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"SLC 300","year_from":2019,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"SLC300","year_from":2017,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"SLK300","year_from":2016,"year_to":2016,"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":[]}