Door locks keep on locking automatically
Thread Starter
Super Member
Joined: May 2018
Posts: 592
Likes: 124
From: NYC
C43 c55 C63
Door locks keep on locking automatically
My c43 keeps on locking on its own mostly when it’s running, key fob works fine locks and unlock ,but the lock button on the dash only locks
almost locked me out a few times .
Does anyone know if it’s the vacuum or a setting tried loooking on YouTube but didn’t find nothing helpful
Has this happen to anyone
almost locked me out a few times .
Does anyone know if it’s the vacuum or a setting tried loooking on YouTube but didn’t find nothing helpful
Has this happen to anyone
Senior Member
Joined: Feb 2017
Posts: 384
Likes: 41
From: West Palm Beach, FL
'99 C43, '88 560SL
My c43 keeps on locking on its own mostly when it’s running, key fob works fine locks and unlock ,but the lock button on the dash only locks
almost locked me out a few times .
Does anyone know if it’s the vacuum or a setting tried loooking on YouTube but didn’t find nothing helpful
Has this happen to anyone
almost locked me out a few times .
Does anyone know if it’s the vacuum or a setting tried loooking on YouTube but didn’t find nothing helpful
Has this happen to anyone
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Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Does it lock up when driving? If so that is normal.
It will unlock automatically when someone opens a door from the inside, or when you drive over a big pothole or something similar. The electronics detect a possible accident situation ans automatically unlocks all the doors.
If the locks close or open haphazardly, have you tried looking to see if any error codes are registered in the ECU?
It will unlock automatically when someone opens a door from the inside, or when you drive over a big pothole or something similar. The electronics detect a possible accident situation ans automatically unlocks all the doors.
If the locks close or open haphazardly, have you tried looking to see if any error codes are registered in the ECU?
MBWorld Fanatic!
Joined: Sep 2007
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05 c55 silver, 98 Imperial Red C43
Its supposed to lock when driving as soon as you pass 9mph.
Ive had w202s also lock when standing still and the key was in it(not in ignition)
My c43 doesn't do that so Im not sure if normal.
I can see it being some sort of a feature you can somehow enable.
Ive had w202s also lock when standing still and the key was in it(not in ignition)
My c43 doesn't do that so Im not sure if normal.
I can see it being some sort of a feature you can somehow enable.
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Oh dear, sounds like the electronic gremlins have hit you somewhere 
Thread Starter
Super Member
Joined: May 2018
Posts: 592
Likes: 124
From: NYC
C43 c55 C63
It’s when in and out the car and leave it running that it relocks on its own , yes after I pick up speed it will automatically lock, I figuredthat’s normal thx
remote button works fine lock and unlock but the dash button won’t unlock the doors only lock them
All I hear is a noise coming from the back I’m guessing the vacuum controls , like if it wants to unlock
Figured I would ask anyone before I start messing with the hose lines or any fuses SOS
remote button works fine lock and unlock but the dash button won’t unlock the doors only lock them
All I hear is a noise coming from the back I’m guessing the vacuum controls , like if it wants to unlock
Figured I would ask anyone before I start messing with the hose lines or any fuses SOS
