{"nhtsa_id":635597,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-25","date":"2002-08-01","document_id":"W206","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER","mfr_system":null,"summary":"PORSCHE AG HAS INITIATED A SERVICE ACTION PERTAINING TO THE INSTALLATION OF THE TURBOCHARGERS THAT IN SOME CASES MAY BE INCORRECT. OWNERS MAY COMPLAIN REGARDING ENGINE PERFORMANCE DURING ACCELERATION. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/635597","components":[{"id":"engine","name":"Engine","parent":null},{"id":"turbocharger","name":"Turbocharger or supercharger","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911 TURBO","year_from":2002,"year_to":2002,"match":"base","vehicle_ids":["2002_porsche_911"]}],"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":[]}