I cannot get the feature to respond at all on my 1995 E320 wagon, although it has chrome door handles and the feature is clearly outlined in the owner's manual. It also states in the owners manual that the windows and sunroof will, in fact, respond to the unlock signal at any time and open. One easy way to tell for a fact (besides the chrome strips) if your car has the feature or not is to pull up the seat cushion and carpet directly behind the driver and see if there is a fairly good size black box with lots of wires in it. This is the comfort / convenience module.

About my problem, the alarm system is a little messed up--it only truly functions properly from the tailgate lock. The driver's door will neither arm or disarm it, and the pass lock arms the alarm upon UNLOCKING--ie, backwards, like the problem with the windows operating backwards. Are the two related?

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2002 Mercedes-Benz E320 4Matic
1995 Mercedes-Benz E320 Wagon
2005 Land Rover LR3 V8 SE
1999 Audi A8 4.2L quattro