He has a 1987 560 SEL listed in his profile, so I figured it was a Gen II. I believe at the beginning of the thread I specify that these instructions are for Gen II cars. I do not have, nor have I ever had, a Gen I and there are differences to be sure as Greg has pointed out to me many times. So I limit my discussions to only Gen II cars.For pre-86 cars (I'm not sure about diesels), you need to make the modifications involving the solenoid to the door, which I did on my 85 380SL. It isn't difficult, and was very worthwhile. I haven't used the key to the door in years. I hid the brain box in the console, and running the antenna in the dash area worked "well enough" for me.
The big differences I've seen in these (they are almost all from China and use basically the same circuits) is in the quality of the remote construction. I found ones that have a chrome-plated metal (real chrome, real metal) surround.
What do you mean by solenoid? Does your alarn have a vacuum lock function?Hey guys my 1991 560sel doesn't let me unlock/lock the doors from the passenger side, but I can unlock all the doors from my trunk and from my driver side... Do I still need the solenoid?