{"nhtsa_id":10121406,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-31","date":"2013-12-03","document_id":"A401337 2035854-","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC; SUSPENSION","mfr_system":null,"summary":"The customer reports hearing a rattling or knocking noise when the car is driven over bumps or uneven road surfaces. The noise is noticed after the car has been driven for a while and is warmed-up, and when the temperature outside is warm. The condition can be duplicated if the brakes are applied while the car is driven over bumps. High ambient temperatures at the hydraulic guide links cause the noise.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10121406-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10121406-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121406","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A4","year_from":2009,"year_to":2010,"match":"exact","vehicle_ids":["2009_audi_a4","2010_audi_a4"]},{"make":"AUDI","model":"A4 ALLROAD","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_audi_a4-allroad","2014_audi_a4-allroad"]},{"make":"AUDI","model":"A4 AVANT","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"A5","year_from":2008,"year_to":2013,"match":"exact","vehicle_ids":["2008_audi_a5","2009_audi_a5","2010_audi_a5","2011_audi_a5","2012_audi_a5","2013_audi_a5"]},{"make":"AUDI","model":"A5 CABRIOLET","year_from":2010,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"Q5","year_from":2009,"year_to":2014,"match":"exact","vehicle_ids":["2009_audi_q5","2010_audi_q5","2011_audi_q5","2012_audi_q5","2013_audi_q5","2014_audi_q5"]}],"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":[]}