Access problem with dead battery
Thread Starter
Newbie
Joined: Aug 2019
Posts: 5
Likes: 0
From: Stockholm
CLK 320 Cabriolet A209
Access problem with dead battery
After a longer period of storage of my CLK 320 2005, the battery died totally, so I had to try the physical key to get access. The key turns alright, but the lock pin does not rise, so I still cannot open the door. Anyone out there experienced a similar problem and has a solution?
Thread Starter
Newbie
Joined: Aug 2019
Posts: 5
Likes: 0
From: Stockholm
CLK 320 Cabriolet A209
Junior Member
Joined: Sep 2018
Posts: 44
Likes: 3
From: New Jersey
2006 CLK500 cabriolet
It may sound crazy, but how about this...
Jack up the car in the front - jack stands, etc. for safety.
Try to find the location where the positive battery cable connects to the starter. Attach a jump-start to that, and the negative to the frame somewhere. You would probably just need a small amount of ooph to operate the door lock receiver.
ANOTHER possibility. I just saw a video on www that showed:
1) put physical key into door and turn left all the way.
2) Continue to pull/release the door handle several times. After a bunch of pull/releases it might get the door to unlock.
Supposedly, this approach is a 'security mechanism' by design.
Jack up the car in the front - jack stands, etc. for safety.
Try to find the location where the positive battery cable connects to the starter. Attach a jump-start to that, and the negative to the frame somewhere. You would probably just need a small amount of ooph to operate the door lock receiver.
ANOTHER possibility. I just saw a video on www that showed:
1) put physical key into door and turn left all the way.
2) Continue to pull/release the door handle several times. After a bunch of pull/releases it might get the door to unlock.
Supposedly, this approach is a 'security mechanism' by design.
Last edited by JoiseyBenz; Apr 15, 2020 at 08:12 AM.
Thread Starter
Newbie
Joined: Aug 2019
Posts: 5
Likes: 0
From: Stockholm
CLK 320 Cabriolet A209
This is an interesting approach, I will try it as soon as I am back home. I have done the very same procedure before, with the only difference that I pulled/released the handle only a couple of times. Could this be a pumping action for a hydraulic actuator?
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Junior Member
Joined: Sep 2018
Posts: 44
Likes: 3
From: New Jersey
2006 CLK500 cabriolet
Rainer, The fellow in the video pulled the handle about 15/20 times until it opened. He also claims that the reason you have to do it so many times is because of some 'security mechanism' built into the Mercedes vehicles.
Here is the link:
Here is the link:
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Junior Member
Joined: Sep 2018
Posts: 44
Likes: 3
From: New Jersey
2006 CLK500 cabriolet
Rainer, I like to do whatever I can to figure out HOW to do it, before I hand my problem off to a 'professional'. If it were me, I'd continue looking on www for other answers. I wouldn't be surprised if they charged you from $50 to $100 to get it open, and it'll probably take them 5 minutes because a dealer (or auto locksmith) surely knows all the tricks.
Here's a MB dealer who is basically suggesting what I said, to apply some power to the system (at the right place) - just enough to get the lock working.
Take a look: https://www.arrowheadmb.com/blog/how...-dead-battery/
Here's a MB dealer who is basically suggesting what I said, to apply some power to the system (at the right place) - just enough to get the lock working.
Take a look: https://www.arrowheadmb.com/blog/how...-dead-battery/
Member
Joined: Nov 2015
Posts: 242
Likes: 26
From: US
Own 2005 CLK500, but drive 2011 Sienna :)
Member
Joined: Nov 2015
Posts: 242
Likes: 26
From: US
Own 2005 CLK500, but drive 2011 Sienna :)
I though you referred to the trunk lid.
