{"count":1,"message":"Results returned successfully","results":[{"odiNumber":11673376,"manufacturer":"Mercedes-Benz USA, LLC","crash":false,"fire":false,"numberOfInjuries":0,"numberOfDeaths":0,"dateOfIncident":"07/01/2025","dateComplaintFiled":"07/14/2025","vin":"W1KZF8DB4MA","components":"ENGINE","summary":"My 2021 Mercedes-Benz E350 (VIN [XXX] ) developed a serious engine issue involving cylinder misfire and check engine light. The dealer diagnosed it as a leaking exhaust valve on cylinder 4, related to TSB LI01.30-P-072328, which documents valve seat wear in M260 engines.  This is a known defect acknowledged by Mercedes in technical bulletins, and other customers in the U.S. have received warranty extensions or goodwill coverage. I was denied coverage even though this is a manufacturer defect that can lead to misfire, power loss, and potential stalling, posing a safety risk on the road.  Mercedes-Benz USA refuses to cover the repair (~$7,600+), even though it relates to a factory-documented problem.  I\u2019m requesting that NHTSA investigate this engine defect, as it may qualify for a safety recall or mandatory extended warranty coverage. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)","products":[{"type":"Vehicle","productYear":"2021","productMake":"MERCEDES-BENZ","productModel":"E 350","manufacturer":"Mercedes-Benz USA, LLC"}]}]}