CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

"Keyless Go" Testing

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Old Nov 10, 2011 | 11:00 PM
  #1  
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W209 CLK
"Keyless Go" Testing

I bought a 2004 w209 CLK 11 months ago. It has the keyless go system. I can start the engine. I can lock and unlock via the boot. I can unlock from the driver's side but not lock. I cannot unlock or lock from the passenger side.
I finally decide to DIY this frustrating problem.
I searched the net for all possible solutions and discussions on this issue. There are quite a few articles and discussions out there.

Basically, most indicate the problem is the actual door handles themselves. At more than NZ$500 a pop and that is not a cheap solution.
I needed a way to test and confirm this is indeed the problem before ordering a new handle.

I can happily report that there is a way to test your "keyless go" door handle to confirm they are faulty or not.

Also I have not found any articles of what is inside these keyless go door handles...so I decided to take one apart; get some photos and enlighten others.
See attached PDF files....
Attached Files
File Type: pdf
Testing Keyless Go__T Eng.pdf (340.6 KB, 645 views)

Last edited by eng_nz; Nov 11, 2011 at 04:27 AM.
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Old Nov 11, 2011 | 05:11 AM
  #2  
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W209 CLK
2 more files added
Attached Files
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Old Nov 11, 2011 | 09:40 AM
  #3  
ambit's Avatar
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From: PA
09 CLK550
The wires in the driver-side handle of my car had worn down and the keyless go would no longer work on that side. Thankfully it was only ~$130 here in the States.
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Old Nov 11, 2011 | 11:12 AM
  #4  
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2024 GLE63s
Thanks for this!

I saved all the files and it will probably be a few years before I appreciate them, like a fine wine...

.
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