Loose or broken VANOS unit bolts can result in an engine stall, increasing the risk of a crash.

Engine And Engine Cooling — Engine

Summary
BMW of North America, LLC (BMW) is recalling certain 2010-2012 1 Series Coupe, 1 Series Convertible, 3 Series Sedan, 3 Series Convertible, 2010-2011 3 Series Sportswagon, 3 Series Coupe, 5 Series Sedan, X3 xDrive 28i, X3 xDrive 30i, X5 xDrive30i, and Z4 sDrive30i vehicles. The aluminum bolts that secure the housing for the variable camshaft timing adjustment (VANOS) unit can loosen over time and possibly break.
Actions
Dealers will replace the four VANOS bolts, free of charge. Interim letters notifying owners of the safety risk are expected to be mailed December 18, 2023. Second letters will be mailed once the remedy is available. Owners may contact BMW customer service at 1-800-525-7417.
Documents (5)

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Date Announced
OCT 20, 2023
Vehicles Affected
157,796
NHTSA Campaign #
23V707000
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