Did you find the problem yet?

I just installed a basic remote entry unit in my 92 300E today. I didn't want the engine interupt ect. just remote door locks.

As you probably know the unit gets spliced into the drivers door lock/unlock (blue) wire at the vac pump. I used two relays to get the proper switching.

You mentioned you are an installer so mabe you can help with a solution to this.

The doors and trunk lock & unlock fine both with the key and the remote.

When I tested the factory alarm by openning a rear door when locked, (through an open window) the alarm works fine when locked with the key, BUT the alarm does not arm when locked with the remote.

Any suggestions are appreciated.

Acky