
As you may be aware, the parking module is controlled by the central electric module for facelift B8.5 now. There is no longer a separate parking module located in the trunk. This is a good thing because you don't have to run cables to the trunk for front sensor retrofit. The central elect module is located under the steering wheel.
This is an update to my first thread here:
http://www.audizine.com/forum/showth...-facelift-b8-5
First of all, a big thank you to DavidB8 who assisted me with this retrofit project. David provided custom oem+ quality harnesses, wiring diagrams and parts, while I changed coding, and plugged and unplugged parts by trial and error to test if the north american central electric module 8K0 907 063 DJ was capable of activating front sensors.
Bad news is our version is not capable; it accepts all the coding without error, but it does not appear to recognize the presence of front sensors. You will likely need 8K0 907 063 DL to work according to the audi tech I spoke to while I was in Ingolstadt a few months ago. I also know that version AJ is also capable as this is used in my friends north american 2013 RS5 which has front pdc.
All is not lost, however. We found out that if just the center console button and speaker was connected, graphical display can be enabled! I now have the ability to toggle the rear camera on/off with the parking button anytime, as well as getting the graphical display for the rear sensors.
Graphical display only (note soft key is bottom left instead of bottom right on pre-facelift):

Graphical display with rear camera (mmi won't take screenshot of video image, hence crappy resolution):

Coding required via VCDS is as follows:
Under central elect module 9, byte 35, check bit 2, front parking aid installed

Under back up camera module 6C, enable optical parking system by adding the value 2

I had ordered a set of harnesses from kufatec just a day before David contacted me so I've posted this extra set in the classifieds. I had originally planned to retrofit two cars, but due to the additional cost of the new module required, I'm only retrofitting one.
I have assembled every part required except for the updated central electric module (quoted 218.50 euros at the audi zentrum inglostadt dealer, so may be cheaper to get from germany than sourcing here). The problem is the ingolstadt dealer will not ship. http://www.audizine.com/classifieds/...?product=84874
Here's what all the parts look like laid out:
- Four front sensors, complete with oem sensor holders with double side tape and rubber o-ring bumper gaskets (two sensors go in bumper while two go in the grill, both of which have holes marked inside already)
- Front sensor harness
- Center Console Button (Parking, ESP off, Rear Blinds). You could use the rear blinds button as a mute switch for a radar detector if you don't have rear blinds like I do.
- Central Electric Harness (to connect front sensor harness, speaker and center console button to central elect module)
- Front Speaker

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