{"nhtsa_id":10178153,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-07","date":"2020-07-27","document_id":"2060205/1","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"Bentayga - Engine Cooling System - DTC P218100. Customer statement / workshop findings: Emission Control Lamp illuminated on Driver Instrument Panel. The time to reach the correct engine coolant operating temperature has increased. Diagnostic Trouble Code (DTC) P218100 - Cooling System Performance is stored in the Engine Control Module (ECM), the vehicle warm up time is longer when compared to other vehicles of the same type. Technical background: It is possible for the engine coolant Thermostat to corrode over time, this corrosion is due to an adverse reaction of the Thermostat material with the engine coolant. The corrosion and subsequent build-up of debris prevents the correct operation of the thermostat when closing, resulting in over cooling. The ECM triggers a DTC when the target engine temperature is outside of the specified parameter.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178153-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178153-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10178153","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P2181"],"topics":[],"vehicles":[{"make":"BENTLEY","model":"BENTAYGA","year_from":2018,"year_to":2020,"match":"exact","vehicle_ids":["2018_bentley_bentayga","2019_bentley_bentayga","2020_bentley_bentayga"]},{"make":"BENTLEY","model":"CONTINENTAL GT","year_from":2018,"year_to":2020,"match":"base","vehicle_ids":["2018_bentley_continental","2019_bentley_continental","2020_bentley_continental"]},{"make":"BENTLEY","model":"CONTINENTAL GT CABRIO","year_from":2018,"year_to":2020,"match":"base","vehicle_ids":["2018_bentley_continental","2019_bentley_continental","2020_bentley_continental"]}],"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":[]}