Door Handle Keyless Go Unlock Stopped Working
Thread Starter
Junior Member
Joined: May 2008
Posts: 39
Likes: 2
From: Portland, OR
2011 S550 4Matic; 06 S500 4Matic (totaled); 1991 190 E 2.6 (Sold); 2020 C Class Wagon
Door Handle Keyless Go Unlock Stopped Working
My Keyless Go lock/unlock feature using the exterior door handle sensor stopped working. I saw some older threads describing repairs/replacement of various components. Didn’t really want to get that involved. Last night it occurred to me that the sensor might just be covered with an “invisible” layer of spray wax from the drive through car wash. Sure enough, I used mild general purpose cleaner (the kind used to wipe down household surfaces) - I didn’t even have to wipe the cleaner off (although I did) - as soon as the spray hit the handle, the door locked. Works like a charm now. Just sayin - sometimes a simple solution is all that is needed.
Thread Starter
Junior Member
Joined: May 2008
Posts: 39
Likes: 2
From: Portland, OR
2011 S550 4Matic; 06 S500 4Matic (totaled); 1991 190 E 2.6 (Sold); 2020 C Class Wagon
Senior Member
Joined: Dec 2013
Posts: 314
Likes: 35
From: New York
2010 CL550
My Keyless Go lock/unlock feature using the exterior door handle sensor stopped working. I saw some older threads describing repairs/replacement of various components. Didn’t really want to get that involved. Last night it occurred to me that the sensor might just be covered with an “invisible” layer of spray wax from the drive through car wash. Sure enough, I used mild general purpose cleaner (the kind used to wipe down household surfaces) - I didn’t even have to wipe the cleaner off (although I did) - as soon as the spray hit the handle, the door locked. Works like a charm now. Just sayin - sometimes a simple solution is all that is needed.
Thread Starter
Junior Member
Joined: May 2008
Posts: 39
Likes: 2
From: Portland, OR
2011 S550 4Matic; 06 S500 4Matic (totaled); 1991 190 E 2.6 (Sold); 2020 C Class Wagon
All four doors stopped responding. All now work fine. It's worth a try to just clean the drivers door sensor. No real cost or effort. Maybe there's some build-up on that sensor and not so much on the other.
Trending Topics
Newbie
Joined: Apr 2024
Posts: 14
Likes: 0
S63 2008
All fours doors stopped working. Sensors all not detected by car computer.
All four of my doors keyless go sensors stopped working.
I checked the fuses, wires and antenna are all working fine.
My truck keyless open works fine.
Any idea what's the problem?
I plugged in obd computer and found code 93AD. Stating that 1 or more doors are not plugged in or cannot be tested.
I'm dumb founded atm on how to fix this. I have a feeling that the keyless module is not detecting the door sensors.
Somewhere the connection may have another controller that maybe faulty resulting the module not reading.
Please let me know if anyone has a solution.
I checked the fuses, wires and antenna are all working fine.
My truck keyless open works fine.
Any idea what's the problem?
I plugged in obd computer and found code 93AD. Stating that 1 or more doors are not plugged in or cannot be tested.
I'm dumb founded atm on how to fix this. I have a feeling that the keyless module is not detecting the door sensors.
Somewhere the connection may have another controller that maybe faulty resulting the module not reading.
Please let me know if anyone has a solution.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
