{"nhtsa_id":10116408,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-25","date":"2012-12-07","document_id":"122-A4T8C-06","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Concerns: Vacuum pump Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. There is a possibility that the elastomer check valve in the additional outlet on the vacuum pump can become damaged over the service life of the vehicle. As a result, the vacuumsupplied to the secondary loadsmay not be sufficient. This can cause malfunctions in the variable intake system. The lack of vacuum can also result in a fault entry during tank leakage diagnosis in the DME and can cause the Check Engine light to come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10116408-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10116408-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10116408","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"PANAMERA","year_from":2011,"year_to":2012,"match":"exact","vehicle_ids":["2011_porsche_panamera","2012_porsche_panamera"]}],"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":[]}