{"nhtsa_id":10138267,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2018-04-27","document_id":"122-K8M7U-05","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT","mfr_system":null,"summary":"Subject: Cayenne S (9YA) As of 2018 Front exhaust pipes Symptom: Buzzing/vibrating noises in the exhaust system area at an engine speed of approx. 1,100 rpm during deceleration. Cause: The exhaust system can expand in an unfavorable direction and become strained at operating temperature. Remedial Action: Loosen clamps on the exhaust system, bring the exhaust system to operating temperature and re-position the clamps.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138267-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138267-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10138267","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"exhaust-pipe","name":"Exhaust manifold, pipes and muffler","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"CAYENNE","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_porsche_cayenne"]}],"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":[]}