2011 Mercedes ML-Class Owner's Manual - Page 320

318 Towing and tow-starting Make sure that the battery is connected and charged. You will otherwise not be able to: Rturn the SmartKey to position 2 in the ignition lock. Rshift the automatic transmission to position N. i Switch off the automatic locking feature before the vehicle is towed (Y page 79). Otherwise, you could lock yourself out of the vehicle when pushing or towing the vehicle. Installing/removing the towing eye Installing the towing eye Vehicles with a trailer tow hitch: if possible secure the towing device on the trailer tow hitch (Y page 198). X Remove the towing eye from the vehicle tool kit (Y page 298). Vehicles with standard bumpers Roadside assistance G Warning The exhaust tail pipe may be hot. You could burn yourself if you touch the tail pipe. Be particularly careful when removing the rear cover. The mountings for the removable towing eyes are located in the bumpers. They are at the front and at the rear, under the covers. Vehicles with the AMG Sports package X X X Press the mark on cover : inwards, in the direction of the arrow. Take cover : off the opening. Screw the towing eye in clockwise to the stop and tighten it.