Keyless issue on my 2006 E55
Thread Starter
Junior Member
Joined: Nov 2009
Posts: 32
Likes: 0
From: Roswell, GA
2006 E55 Opal Black
Keyless issue on my 2006 E55
I have some strange behavior with the keyless entry on my 2006.
I am no longer able to unlock the driver's door with the remote in my pocket.
The keyless go start works perfectly, as do all the other doors and the trunk. I've taken to opening the rear door first, which unlocks the other doors.
Could this be something as simple as a battery needing replacing, or should I take it to the dealer?
I am no longer able to unlock the driver's door with the remote in my pocket.
The keyless go start works perfectly, as do all the other doors and the trunk. I've taken to opening the rear door first, which unlocks the other doors.
Could this be something as simple as a battery needing replacing, or should I take it to the dealer?
Junior Member
Joined: Dec 2009
Posts: 38
Likes: 2
From: Georgia, USA
2008 GL320 CDI, 2007 E320, 2005 Passat TDI
Hello ownersite,
Replacing the battery is a simply DIY that you could try. Since your Keyless Go still works fine along with the keyless door opening on the rear door, I suspect you have a 'bad' sensor or receiver for the front door. My car did this a while back and needed a receiver (I think?) to get it going. I let the dealer do that job so I don't have many details to share. Anyway...I bet it's more than just a battery in your remote that is failed.
/Sparticus
Replacing the battery is a simply DIY that you could try. Since your Keyless Go still works fine along with the keyless door opening on the rear door, I suspect you have a 'bad' sensor or receiver for the front door. My car did this a while back and needed a receiver (I think?) to get it going. I let the dealer do that job so I don't have many details to share. Anyway...I bet it's more than just a battery in your remote that is failed.
/Sparticus
Thread Starter
Junior Member
Joined: Nov 2009
Posts: 32
Likes: 0
From: Roswell, GA
2006 E55 Opal Black
Thanks for the replies. Not sure why I didn't check this before posting, but I tried the other key fob to see if it was the battery, and it still does not unlock the driver's door. Off to the dealer it seems...
Super Member
Joined: Mar 2009
Posts: 937
Likes: 15
From: Alpharetta Georgia
2006 E55, 2006 saab 93 aero, 2010 glk 4m
Another check
I have some strange behavior with the keyless entry on my 2006.
I am no longer able to unlock the driver's door with the remote in my pocket.
The keyless go start works perfectly, as do all the other doors and the trunk. I've taken to opening the rear door first, which unlocks the other doors.
Could this be something as simple as a battery needing replacing, or should I take it to the dealer?
I am no longer able to unlock the driver's door with the remote in my pocket.
The keyless go start works perfectly, as do all the other doors and the trunk. I've taken to opening the rear door first, which unlocks the other doors.
Could this be something as simple as a battery needing replacing, or should I take it to the dealer?
Also i'm convince you have the same problem as i did with these symptoms before because the driver and rear door handle on the driver's door both share the same sensor for the key so if the backdoor is working, that rules it out.
I grabbed mine at genuinemercedesparts.com (~$150) and the replacement took me less than 20 minutes. Hope this helps.
BTW i also drive an 06.
Thread Starter
Junior Member
Joined: Nov 2009
Posts: 32
Likes: 0
From: Roswell, GA
2006 E55 Opal Black
Looks like three different people with 2006's have had the same problem. I sense a pattern here. 
(either that, or people without 2006's read the thread title and moved on)
I have to admit, that while I am a technical geek, I am not mechanically inclined. I hope the repair is covered under my CPO warranty.
(either that, or people without 2006's read the thread title and moved on)I have to admit, that while I am a technical geek, I am not mechanically inclined. I hope the repair is covered under my CPO warranty.
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Senior Member
Joined: Feb 2008
Posts: 348
Likes: 0
From: Bay Area
2005 E55 / 2008 E63
Just went thru on my 08. Drivers door sensor had to be replace. Note they are usually not in stock and need to be ordered. Thought it would be something I could wait for and end up being 3 days...
Super Member
Joined: Feb 2010
Posts: 554
Likes: 0
From: Mississippi
2004 SL55
Mine does the exact same thing
I changed the battery in my SmartKey yesterday, and that didn't solve the issue. It works on all of the other doors, but not the driver door. Quite annoying.
BTW, I've got a 2004.
BTW, I've got a 2004.
Senior Member
Joined: Dec 2008
Posts: 361
Likes: 3
From: Northern California
05 e55
I have an 05 with the same issue. Mine started doing it intermittently around feb, and later it became permanent. All other doors/trunk/start operations work fine so I know the keyless system is functioning properly. I'm pretty sure it's a bad door sensor, havn't gotten around to replacing it yet.
Member
Joined: Aug 2009
Posts: 95
Likes: 0
From: Atlanta, GA
2006 E55
Looks like three different people with 2006's have had the same problem. I sense a pattern here. (either that, or people without 2006's read the thread title and moved on)
I have to admit, that while I am a technical geek, I am not mechanically inclined. I hope the repair is covered under my CPO warranty.
(either that, or people without 2006's read the thread title and moved on)I have to admit, that while I am a technical geek, I am not mechanically inclined. I hope the repair is covered under my CPO warranty.
I had the same problem. I was told bad circuit in door handle. Covered with my Chrysler Warranty.
MBWorld Fanatic!
Joined: Dec 2008
Posts: 2,190
Likes: 35
shrimp boat
My is an '04 and the driver door doesn't work, the other three doors work fine.
Junior Member
Joined: Apr 2009
Posts: 40
Likes: 0
From: Greenville, SC
2007 S600
I had the dame behavior.
I had to replace the driver's side front door handle because the switch failed. It's a common problem with keyless go. The dealer told me I got the last Tectite Grey one in stock. MB discontinued the color in with the 05MY.
I had to replace the driver's side front door handle because the switch failed. It's a common problem with keyless go. The dealer told me I got the last Tectite Grey one in stock. MB discontinued the color in with the 05MY.
MBWorld Fanatic!
Joined: Jun 2009
Posts: 1,693
Likes: 9
From: Houston, TX
2006 E55, 2012 Jeep SRT, 2008 G37s 6MT (The Mrs.), 2005 Explorer
Looks like its ~$140 at parts.com. I'm thinking my 2006 has the same issue with the switch. I've been using the rear door to lock and unlock the car for a while now. Kind of annoying.
