1. Look for the Battery Key Slot: Open your driver's side door and locate the battery slot usually found near the fuse box. This slot may be concealed by a small cover.
2. Insert the Metal Key: Remove the cover, and insert the metal emergency key into the battery key slot. Push the key in until it stops. Some models require turning it clockwise or counterclockwise. Consult the owner's manual for your car for specific instructions.
3. Press the Trunk Release Button: Once you've inserted the metal key, press the trunk release button, which can usually be found near the battery key slot. This should unlock the trunk.
4. Open the Trunk: Pull on the trunk release handle inside the trunk or use the remote key fob if the battery is temporarily revived.
Option 2: Using a Backup Power Source
1. Gather Supplies: You'll need a charger or another working battery, jumper cables, and a wrench or screwdriver.
2. Locate the Backup Battery: Some Mercedes-Benz models feature a backup battery located under the passenger seat. Consult the owner's manual for your specific model.
3. Disconnect Battery Negative: Use a wrench or screwdriver to loosen the negative terminal clamp of the backup battery.
4. Connect Charger: Connect the red terminal of the charger or auxiliary battery to the positive terminal of the backup battery. Connect the black terminal to a metal surface in the engine bay, not near the battery.
5. Open Trunk: Wait a few minutes for the battery to gain some power. Then, press the trunk release button inside the car or use the remote key fob.
Option 3: Crawling Through the Interior
1. Unlock the Passenger Rear Door: Insert your metal emergency key into the exterior passenger rear door lock and unlock the door.
2. Fold the Rear Seats: Open the unlocked passenger rear door, then release the levers and fold the rear seats down.
3. Access Trunk Manually: Use the seat opening to reach the trunk area and manually release the trunk lever or latch.
Additional Tips:
1. Always consult the owner's manual for your specific car model to ensure you follow the correct procedures.
2. If none of the above methods work, you may need to call a professional locksmith or roadside assistance for help.
