{"nhtsa_id":10169838,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-01-09","date":"2019-12-13","document_id":"2057991/1","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Customer statement / workshop findings: Malfunction Indicator Lamp (MIL) illuminated on driver instrument panel. Engine runs unevenly when starting from cold. Camshaft position Diagnostic Trouble Codes (DTCs) stored within Engine Control Unit (ECU). Technical background: When the engine is cold increased friction within the camshaft adjuster unit may result in camshaft position DTCs being stored within the ECU. The concern can be resolved by replacing the camshaft timing gear with a B level part which utilises an internal return spring with higher rate. See Parts information below. There are many possible DTCs related to this failure, the following is a typical example P001200 : A Camshaft position (Bank 1) timing over-retarded.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169838-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169838-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169838","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P0012"],"topics":[],"vehicles":[{"make":"BENTLEY","model":"MULSANNE","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_bentley_mulsanne","2017_bentley_mulsanne","2018_bentley_mulsanne","2019_bentley_mulsanne","2020_bentley_mulsanne"]}],"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":[]}