strange issue with doors- front doors have threaded shafts, rear doors have non-threaded shafts
 

It's that door lock knob project again.

The front door have threaded shafts- I took the knobs to verify.

Rear doors have smooth shafts and the door lock knobs I have obviously will not fit.

What's up with my car?

threads dont matter because the knobs aren't threaded
 

the knobs slide onto the shaft then rotate 90.deg to lock them in place.. just line up the flat side on the shaft with the flat spot on the knob.

Re: threads dont matter because the knobs aren't threaded
 

The front shafts are threaded and the door lock knobs screw on.

I called the audi dealers (Bellevue and University Audi) and they claim their parts book shows threaded shafts.

So, in my vehicle the front shafts are threaded and the knobs fit over them and screw on- on the rear doors the shafts are smooth and pushing the knobs on/over the shafts simply pushes them down inside the door.

look at the shafts..... they have a flat side
 

<center><img src="http://www.itallics.com/images/dl.jpg"></center><p>now look at the knobs they should have a small tab on the bottom..
Line the tab up with the flat side of the shaft and push down to where you want the knob to be located.
Then twist the knob 45 degrees in either direction to lock it in place..


I understand the front shafts have threads but the knobs don't screw on.
see pic