BMW X5, Z4 +4 more: Engine and engine cooling — engine

Affects BMW X5, Z4, 3 Series, 1 Series, 5 Series, X3 · 2010–2012 — about 158K vehicles.

The hazard

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

What to do

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. Owner notification letters were mailed June 19, 2024. Owners may contact BMW customer service at 1-800-525-7417.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational