BMW 3 Series, 4 Series +1 more: Suspension

Affects BMW 3 Series, 4 Series, 2 Series · 2015–2017 — about 24 vehicles.

The hazard

On certain M-series vehicles that had the rear differential replaced during servicing, one-time use bolts holding rear sub-frame may have been inadvertently reused due to missing information in the repair instructions. This could cause the bolts to become loose as they would not achieve sufficient clamping force. A loose sub-frame could affect vehicle handling and stability which could increase the risk of a crash causing injury and/or damage to property. Correction : Dealers will replace the rear sub-frame bolts.

What to do

Contact your dealer; the remedy details were not included in the filing.

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