2007 Mercedes R-Class Owner's Manual - Page 306

Controls in detail Loading Warning! Make sure the seats are properly locked G the seat backrests are in an upright position and are properly locked A second-row seat is properly locked only when lock status indicator 1 is in hinged position and red marking 2 is barely visible. If a seat and seat backrest are not properly locked, the seat could move forward and the seat backrest could fold. You could slide under the seat belt during braking, vehicle maneuvers, or in an accident. If you slide under it, the belt would apply force at the abdomen or neck. That could cause serious or even fatal injuries. Second-row seat unlocked Second-row seat locked 1 Lock status indicator 2 Red marking When the seat is unlocked lock status indicator 1 is extended red marking 2 is clearly visible When the seat is unlocked, push seat backrest back until the seat audibly engages. 1 Lock status indicator 2 Red marking When the seat is locked lock status indicator 1 is in hinged position red marking 2 is barely visible 305