2006 Mercedes R-Class Owner's Manual - Page 288

Controls in detail Loading Fold seat cushion 7 to a horizontal position. Guide pin 5 must engage in recess 4 of seat backrest 6. Warning G i The second-row seats must be in their rearmost position ( page 137). Fold seat backrest 3 to a horizontal position. Returning seats to their original position Carry out the steps described on ( page 283) to ( page 286) in reverse order. Make sure all seats are properly locked in position. Make sure all seats are properly locked in position before driving off. Do not drive with seats not properly locked. Never ride in a moving vehicle with the seat not properly locked as this can be dangerous. 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. The seat backrest and seat belt provide the best restraint when the wearer is in a nearly upright position and the belt is properly positioned on the body. When the red marking on a seat base is visible, push seat backrest back until the seat audibly engages. With the seat properly locked in position, you will not see the red marking on the seat base. The second-row seats have red markings on the seat base that indicate when a second-row seat is not properly locked. 287