Insert the metal key into the hole in the bottom of the driver s door handle.
Flat battery door locked.
Once you slide over the cover you will be able to see the key hole.
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.
If your metal key won t unlock the driver s door try inserting the key in and out a few times.
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.
The most common way to do this is to use jumper cables connected to a screwdriver.
Battery died on a 2017 volvo xc90 and the door couldn t be opened by the remote and since there is no regular key it had to be opened with spare key that is.
With the other end connect the black wire to a ground source and connect the red wire to the metal rod of the screwdriver.
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.
There is a mechanical link that barely works to unlock the door this way.