My CDI was rear ended and the trunk was damaged. I got one from the junk yard and changed over the guts. Now the trunk can't be opened with fob, driver door release button or the trunk release flap ( basically manually open it ). This is what I observe.

1) trunk can be opened with key inserted and turned counter clockwise to unlock position. Activate the trunk release flap and it opens. It is pretty much a mechanical operation to release the latch. Key lock normally in neutral position.

2) If I press the emergency green button, I can hear the motorized latch release so the motorized latch is working.

Nothing happen with the fob or the door release button. I think the trunk release flap activates a micro switch which in turn tells the computer to activate the motorized latch but nothing happens. Any ideas? Do I need to reset the computer, if there is a computer?

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

I can't tell you how many times I've resoldered the wiring in the driver's side trunk hinge area on a 211. That's the first place that we look when having this issue. almost 100% of the time, that's the problem. Not saying it's yours, but definitely worth a look. Easy access and easy to repair.

the trunk handle on my cdi sticks when i pull it back to open the trunk. if i forget to push it back into the normal, 'resting' position, then the key fob and the trunk button on the door don't work.

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0o==o0

James 4:8

"...let us put aside the blindness of mind of those who can conceive of nothing higher than what is known through the senses"
-Saint Gregory Palamas, ---Discourse on the Holy Transfiguration of Our Lord God and Savior Jesus Christ


Centrally located in North East Central Pa.

These things happened to me when the rear SAM packed up.

Basically everything is there except the signal between them, thats why the motorized switch in the trunk still works when actuated directly, in my case.

Resolved.

I ohmed out the trunk cables and everything is ok. No broken or snapped cable(s) on the driver side hinge. One thing I did not do was to insert the fob and started the car. Bingo, after the car started and turned off, everything magically works. The fob and the door release button works now. The w211 is just too damn complicated. Thanks for the inputs.

__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

^good to see that was resolved without bloodshed from your wallet