BMW M3, M4 +1 more: Structure — frame and members

Affects BMW M3, M4, M2 · 2015–2017 — about 196 vehicles.

The hazard

Loose rear sub-frame bolts may adversely affect vehicle handling and control, increasing the risk of a crash.

What to do

BMW will notify owners, and dealers will replace the rear sub-frame bolts with new bolts, free of charge. The recall began on November 3, 2016. 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