2003 Mercedes ML-Class Owner's Manual - Page 243

Practical hints Unlocking/locking in an emergency Locking the vehicle If you are unable to lock the vehicle with the remote control, lock it with the mechanical key as follows: Close the passenger doors and the liftgate. Press the upper part of the central locking button in the cockpit ( page 89). Check to see whether the locking knobs on the passenger doors are still visible. If necessary push them down manually. Lock the liftgate if necessary from inside ( page 87). Lock the driver's door with the mechanical key. Changing batteries If the batteries in the remote control are discharged, the vehicle can no longer be locked or unlocked. It is recommended to have the batteries replaced at an authorized Mercedes-Benz Light Truck Center. Warning! i When changing batteries, always replace both batteries. The required replacement batteries are available at any Mercedes-Benz Light Truck Center. G Keep the batteries out of reach of children. If a battery is swallowed, seek medical help immediately. Batteries contain materials that can harm the environment if disposed of improperly. Recycling of batteries is the preferred method of disposal. Many states require sellers of batteries to accept old batteries for recycling. 1 Release button 2 Battery cover Replacement batteries: Lithium, type CR 2025 or equivalent. Unfold the key by pressing release button 1. 243