2009 Mercedes GL 450 “third row of Seats-left not locked”
In the x166 I've had this happen when something was preventing the seat from fully locking in place, like a carseat or other object. If that's the case you can try to push the seat back further back. You might hear it lock into place.
Last edited by sg021; May 3, 2021 at 11:27 AM.


