Unfortunately i had some problems with the mercedes a glow plug went out and i decided to have all six replaced at the same time and after 6 years the vehicle battery failed and i had them replace the rv batteries at the same time.
Mercedes lock door with engine running.
They found that there was a loose wire inside my door.
Lift up on the auto up driver window switch.
Ive done it by starting the car open drivers door hit lock button on door then use metal key inside fob to manually lock the driver door.
Reach inside and hit the power lock switch and lock the doors.
On those models the door lock actuators may fail causing the door lock to bounce up and down several times.
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.
The engine might not be running when the car is first parked but will come on later as the car s batteries run down.
Open the door and exit the car.
Drivers can lock and unlock the car just by touching the door handles.
Pull your arm out of the car before it gets pinched by the closing window.
Lock works perfectly now.
Original poster 1 point 3 years ago.
Posted by 3 years ago.
There is a couple of ways to fix this problem.
To do this fully close the sliding door once with the button on the centre console or in the doorway pressed down.
Lock mercedes benz while engine running.
Roll down the drivers side window.