{"nhtsa_id":10021577,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2007-06-06","date":"2008-04-28","document_id":"322047","mfr_campaign":null,"replaces":"322047B","component":"SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE; SUSPENSION:FRONT:STABILIZER BAR","mfr_system":null,"summary":"KNOCKING NOISE FROM THE FRONT AXLE. MERCEDES BENZ. MODEL S550. *KB UPDATED 6/4/08. *NJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10021577","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"S550","year_from":2007,"year_to":2007,"match":null,"vehicle_ids":[]},{"make":"UNKNOWN","model":"UNKNOWN","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}