NHTSA recall 13V236000

What's wrong: These vehicles are equipped with an occupant classification system (ocs) that may not correctly differentiate between a child seat or a very light person being in the front passenger seat.

Why it matters: If the ocs incorrectly classifies a very light person as being a child seat, in the event of a crash necessitating airbag deployment, the system would deactivate the passenger airbag, increasing the risk of injury.

The fix: Mercedes will notify owners, and dealers will replace the passenger side seat cushion including the ocs. The recall began on July 26, 2013.