Mercedes-Benz S550, S550 4MATIC +9 more: Seat belts — pretensioner

Affects Mercedes-Benz S550, S550 4MATIC, C300, GLC300, AMG C43, AMG C63, C63S AMG, AMG GLC43, S600, AMG S65, AMG S63 · 2017 — about 13K vehicles.

The hazard

If the front seat seatbelt pretensioners do not function properly, the seat occupants may not be adequately restrained in the event of a crash, increasing the risk of injury.

What to do

MBUSA will notify owners, and dealers will replace the front seat belts, free of charge. The recall began October 13, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.

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