How to fix a broken actuator on a Mercedes Benz?

How to fix a broken actuator on a Mercedes Benz?

STEP BY STEP! 1.) Determine which door has the broken actuator. Manually unlock all the doors. Lock your doors. One of them will still be unlocked. Manually lock all the doors. Now unlock them. One of them will still be locked. If your doors work properly. Check the lift (trunk) gate. 2.)

How does a Mercedes Benz door lock work?

Mercedes-Benz vehicles such as E, C, S, ML, GL, R Class are designed to automatically lock the doors as soon as you start to drive. On those models, the door lock actuators may fail causing the door lock to bounce up and down several times.

How do you unlock a car door with an actuator?

There are a number of ways that you can unlock car doors that have door lock actuators, including: Using a key Pressing the unlock button inside the car Using the combination lock on the outside of the door Pulling up the knob on the inside of the door Using a keyless entry remote control Signaling from a control center

How to disable automatic lock on Mercedes ML320?

The ML is programmed to automatically lock the doors when you start driving. By disabling the automatic lock function, the car won’t try to automaticly lock the doors. Do this: Turn the key to position 2, all your cluster lights are on.

Is the door lock actuator on a Mercedes C class broken?

If the door locks in your C-Class are bouncing up and down or are otherwise not functioning properly, the system’s actuator might be broken. This is a costly component to replace at the repair shop, but it is something you can do at home.

How do you remove a door lock actuator?

Carefully lever around the edge of the door trim, and lift it off. Pull up and forwards on the door trim to remove. Disconnect all hook linkage, and remove insulation in order to access actuator housing area. (Related Article: How to Remove Door Trim Panel – MBWorld.org) Remove the T30 Torx screws holding the actuator.

How do you remove a lock mechanism from a door?

Now, remove the two Torx bolts under the handle cover. Figure 1. Lock mechanism mounting screws. Carefully lever around the edge of the door trim, and lift it off. Pull up and forwards on the door trim to remove. Disconnect all hook linkage, and remove insulation in order to access actuator housing area.

How do you remove the door handle on a Mercedes C class?

Once done, remove the handle’s blanking plate and unscrew the T20 Torx that holds the outer door handle. Now, in order to remove the handle, first remove small part of the handle release by removing the previous T20 Torx. Next, slide handle to the left to release from vehicle.

Why is my Mercedes Benz door lock not working?

This happens because the actuators in one of the doors is defective. The plastic tappet plate component inside the actuator has broken. You can try to replace the whole actuator or replace the broken part inside it. Watch the videos at the end of this article if you want to perform this repair.

How to Relock a Mercedes Benz ml430 door?

Since the micro switch of the damaged door did not report a Locked /Unlock status to the All Activity Module (AAM), the AAM unlock and relock all the doors repeatedly until all the doors (micro switches) reported the Locked status. Solution: Replace the door lock actuator, door locks will functioned normally again.

Carefully lever around the edge of the door trim, and lift it off. Pull up and forwards on the door trim to remove. Disconnect all hook linkage, and remove insulation in order to access actuator housing area. (Related Article: How to Remove Door Trim Panel – MBWorld.org) Remove the T30 Torx screws holding the actuator.

How to replace the door lock actuator on a Mercedes Benz?

The first step in replacing the door lock actuator is to disconnect the battery. Remove the small plastic plate at the bottom of the rear passenger seat. Underneath is a 11mm nut holding the negative terminal from the battery to ground. Remove the nut and pull the cable off.

This happens because the actuators in one of the doors is defective. The plastic tappet plate component inside the actuator has broken. You can try to replace the whole actuator or replace the broken part inside it. Watch the videos at the end of this article if you want to perform this repair.

Since the micro switch of the damaged door did not report a Locked /Unlock status to the All Activity Module (AAM), the AAM unlock and relock all the doors repeatedly until all the doors (micro switches) reported the Locked status. Solution: Replace the door lock actuator, door locks will functioned normally again.

How much does it cost to repair a Mercedes Benz door lock?

Estimated Repair Cost: $300-$400 performed by a Mechanic. If you Do-It-Yourself you are looking to spend under $200. Parts: You can get them from these sellers for much less than the dealer. Temporary Solution: Disable the auto lock feature on the ML. The ML is programmed to automatically lock the doors when you start driving.