Keyless entry for a 1985 735i????

[mike_in_tulsa]

I just bought a 1985 735i and even though it has power windows, power seats, and power moonroof, it does not have power door locks. But when I lock the driver's door from the outside with my key, it locks ALL the doors. So, that tells me there's power in there somewhere. My question to the group is: Could a keyless entry system be installed in this vehicle? The requirement for an after-market keyless entry system is that you have power door locks, which I don't really have as far as being able to press a button inside the car, but since all the doors lock when you lock it with the key tells me there might be hope. I would appreciate any help here. Thanks.

[libertylover]

"But when I lock the driver's door from the outside with my key, it locks ALL the doors."

Perhaps it's just a matter of semantics, but I would consider this to be power door locks. As far as a button inside, the BMW way is to use the pull-up thing on top of the doors. The driver's door lock will lock and unlock all of the doors from the inside as well.

For a button outside the car, that can be added. I used to have an '89 325iSthat worked just as you describe and I added a remote entry pushbutton system to it. I wasn't fancy, one button to lock all of the doors and the trunk, and another button to unlock them all. One of the local aftermarket stereo shops put it in for only $50 including the installation. They tied in to the wiring in the driver's footwell area.

[electricjules]

i dont know if you've already figured it out by now, but yea you can definitely do keyless entry cause u should already have an alarm built in. i have keyless on my 85 735i including an alarm with starter kill...