{"nhtsa_id":10238811,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-07-06","date":"2023-06-30","document_id":"WPF4","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Porsche intranet posting with information on WPF4 - rework control line for exhaust flaps","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238811-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238811-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238811","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"718 CAYMAN GT4","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_porsche_718-cayman","2023_porsche_718-cayman"]},{"make":"PORSCHE","model":"redundant CAYMAN GT4","year_from":2023,"year_to":2023,"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":[]}