{"nhtsa_id":10123543,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-17","date":"2013-06-05","document_id":"Dealer Letter -","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, DIESEL","mfr_system":null,"summary":"We would like to inform you that the FAQ for Service Action 20U3 has been revised to include additional information for dealers to share with customers about the misfueling guard. After the 20U3 campaign has been performed, please take some time to explain the misfueling guard to your customers, using the information in the FAQ as a guide. Please also ensure that dealership personnel are familiar with the information contained in the FAQ, so that they are able to answer any customer inquiries that may arise. As diesel engine passenger vehicles become more popular, auto manufacturers have seen an increase in the number of misfueling cases where diesel engine vehicles are mistakenly fueled with gasoline. The resulting fuel system contamination can lead to costly repairs that are not covered under warranty. As an additional safeguard to help prevent a gasoline fuel pump nozzle from being used to fuel a TDI® Clean Diesel engine vehicle, dealers will install a misfueling guard in the fuel filler neck of vehicles affected by this action. Additionally, a new fuel filler neck cap will also be installed. Please note: The misfueling guard is designed to prevent a gasoline fuel pump nozzle from entering a vehicle?s fuel filler neck, thereby reducing the risk of fuel system contamination from gasoline. Even with this inhibitor installed, remind anyone who refuels the vehicle that it requires diesel fuel, and to double-check the fuel pump to ensure the correct fuel is selected before filling the tank.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10123543-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10123543-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10123543","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A3","year_from":2010,"year_to":2012,"match":"exact","vehicle_ids":["2010_audi_a3","2011_audi_a3","2012_audi_a3"]}],"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":[]}