Flat Battery Door Locked
The most common way to do this is to use jumper cables connected to a screwdriver.
Flat battery door locked. Once you slide over the cover you will be able to see the key hole. Now we will open the hood with a screwdriver tested on bmw e34 the length of the screwdriver should be no less than indicated in the picture. With the other end connect the black wire to a ground source and connect the red wire to the metal rod of the screwdriver. There is a mechanical link that barely works to unlock the door this way.
Right now after months of being parked each car has a flat battery. If your metal key won t unlock the driver s door try inserting the key in and out a few times. Solution 1 courtesy of bmw is to insert the key into either of the front doors and turn the key slowly while lifting the outside door handle slowly and simultaneously. If you are ever locked out of your mercedes because of a dead fob battery or dead car battery this video will show you how to open your locked mercedes vehicle.
Connect one end of the cables to the battery in a running vehicle. Now you can poke the screwdriver onto the solenoid power bolt. If the lock had been locked on you may need to lift up and pull the door handle when turning the key so as to tighten the key in the lock.