How to check the lock on a Mercedes W123?

How to check the lock on a Mercedes W123?

Make sure the driver’s side door is closed, and turn the key to the lock position. Pull a vacuum of 10 to 15Hg; all the doors on the car should lock. Wait about 5 minutes to see if the lock side of the system holds. Make note of the results.

How do you unlock a locked BMW door?

In normal operation, pushing the button down will lock the doors and the top of the button will be flush with the top of the door panel. If the ignition is on, pulling the inside door handle or operating the power door lock button will unlock the door and move the lock button back up.

Where are the doors on a Mercedes-Benz W124?

1. If your let us know which w124 you have,in the future,advice will be more timely and accurate. the doors,fuel door,trunk. position in the:driver’s door,passenger’s door and the trunk. likes the Electric Switch in the Driver’s Door for this Offense to the Owner. EDIT: for clarity .WE are talking about locking the doors with the Key?

How does a central locking system work on a car?

/ Central locking The central locking system enables you to lock and unlock all the doors and the tailgate from one point. Central locking can be activated using any of the following options: • the key, by inserting it into the driver’s door cylinder and rotating manually,

1. If your let us know which w124 you have,in the future,advice will be more timely and accurate. the doors,fuel door,trunk. position in the:driver’s door,passenger’s door and the trunk. likes the Electric Switch in the Driver’s Door for this Offense to the Owner. EDIT: for clarity .WE are talking about locking the doors with the Key?

Why is my driver’s door lock not working?

A shorted wire could act like a stuck switch. The driver’s door gets used more, might be the prime suspect. If it is a stuck switch or shorted wire, then removing one pin at a time from connector X2 where it plugs into the pump would be a test to isolate the problem to one door or the tailgate.

What should I do if my Mercedes key fob is not working?

If you need a replacement battery note that Mercedes-Benz uses CR2025 battery type. Ensure you have new batteries in your key fob. Next, look carefully at your Mercedes-Benz key. When you press the button on your key you should see a small RED led light. The light should light up every time you press any of the buttons (Lock, Unlock, Panic, Trunk).

Why does my door lock keep self unlocking?

Go through the pins, one at a time, testing the locks each time. If my theory is right, one of the pins will be connected to a stuck switch or shorted wire. When that pin is removed, the self-unlocking problem will go away. The rest of this was written before the above so you can ignore it if you wish.