2003 Turbo Door Lock Issue

[Willstuartjr]

Hi, I have a 2003 Cayenne turbo. The rear passenger door will not lock when I use the fob or the keyless button on the external door handles. To get it to lock I have to remove the rubber grommet and manually move the lock override to lock the door. I suspect it is a faulty lock mechanism. The door clicks 2-3 times when grabbing the handle vs once for the rest of the doors and the underdoor light flashes. I looked up the part and noticed there are 3 versions of the lock.

Does my diagnosis sound accurate?

What are the differences in the 3 lock models (I4K3, I4K0, I4F2) and how do I know which one my car has?

Thanks in advance for your help!

[bigbuzuki]

Look at your options list sticker under the rear luggage compartment cover.

[Willstuartjr]

Thanks for the tip!

[linksamui]

I just replaced all 4 to brand new spec. Will look up the parts numbers for you tomorrow. My driver door won't shut and passenger door won't open sometimes. plus the rear acting up.

[cayenneturbo]

Let us know what part your replaced, my 04 has been doing the same thing intermittently. I am now in the habit of making my way around to double check the door because sometimes it will lock and other it wont... but it always unlocks.