The Office of Defects Investigations (ODI) is an office within the NHTSA which investigates serious safety problems in the design, construction or performance of vehicles. The NHTSA is authorized to order manufacturers to recall and repair vehicles, if the ODI finds a safety issue. NHTSA investigations for the 2011 BMW X5, both ongoing and closed, are listed below:

  1. INVESTIGATION: Engine Idler Pulley Bolt Failure

    NHTSA Defect Investigation #RQ18001

    • Status:
    • Date Opened: April 18, 2018
    • Date Closed: N/A
    • Recall: No recall yet

    Component(s): Steering
    Steering:Hydraulic Power Assist System
    Steering:Hydraulic Power Assist:Hose, Piping, And Connections

    Summary: On November 26, 2012, Bayerische Motoren Werke (BMW) AG submitted a Safety Defect Report to NHTSA describing an engine idler pulley bolt defect condition that could result in loss of power steering while driving in approximately 29,800 model year (MY) 2009-2012 X5 xDrive35d diesel engine vehicles manufactured prior to the implementation of a new idler pulley bolt and a revised installation procedure (Recall No. 12V-550).BMW's defect report indicated that a combination of factors could cause the bolt to loosen over time, resulting in additional bending stress at the bolt head.As a result, the bolt could break.Bolt fracture would result in a failure of the belt drive and loss of power steering and alternator function.The remedy includes the installation of the new bolt with the revised installation procedure.ODI has received 19 complaints alleging incidents of power steering failure due to the loss of the engine belt in vehicles previously remedied under Recall 12V-550.On average, the failures have occurred approximately 3.6 years and 49,900 miles after the vehicles received the recall remedy.The failures appear to show an increasing trend, with 11 occurring since January 1, 2017.A recall query has been opened to assess the scope and remedy for Recall 12V-550.The ODI complaints cited above involved power steering failures can be viewed at under the following ODI identification numbers: 11066063, 11063010, 11054909, 11054759, 11042259, 11041551, 11032006, 11013643, 11010667, 11002447, 10956710, 10948014 (10984353), 10937632, 10903433, 10819617, 10817406, 10661614, 10559422, 10552773