The needle roller bearings of the counterbalance shafts may have been improperly installed, potentially causing the counterbalance shaft to loosen.
A loosening of the counterbalance shaft could result in severe engine damage, increasing the risk of a crash.
What to do
BMW will notify owners, and dealers will replace the engine free of charge.
The recall is expected to begin December 6, 2019.
Owners may contact BMW customer service at (800) 525-7417.
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