Chivo23

If you want the factory hitch, I would do some research because I think the Porsche Macan hitch will fit your SQ5 2017. You can buy the module which ends in a part number D (look at first post here for reference of part numbers) the 7 way socket connector and the Q7 harness from getaudiparts.com. All the part numbers are listed in the first message of this post. Total parts will cost about $1200. It was the cheapest I found around, dealers will charge you double. If you have a helper, you can do this, all you need to is remove some some of the floor panels in the rear. A total of 8 screws and 4 bolts from the bumper and move it aside. You can always get the parts and have a mechanic install it for you. Electronics will have to be programmed by shop that has access to a VCDS cable or the factory Audi scanner. Most euro shops should have one or the other. With the factory wiring, the SQ5 will recognize there’s a trailer, camera and parking sensors won’t go all crazy. If you go aftermarket, cheapest I found was $750 installed at a hitch trailer shop. However, they will splice into your brake lights on the hatch and the connecting wire will hang from the hatch every time you need to tow which can look odd. If requested, you can ask the shop to run the cable through a center grommet to avoid hanging the cable. The closest hitch to factory is the draw tite hitch but it doesn’t have a bracket to hold the 7 way connector. Use stealth hitch instruction guide, it’s has very clear instructions on how to install the hitch itself. You can also check on etrailer.com for hitch choices and electronics.

Chivo23

The hitch, I ordered from getporscheparts.com. It was only the hitch and it has the plate so that you can mount the trailer connector. Part number is 8R0-800-491-A. It fit perfectly!

Trialer Module: 8K0-907-383-D Control Unit
Q7 harness: 4L0-971-124-F
7way connector: 4L0-055-305-U
Module bracket: 8R0-907-297-A
2 10mm nuts: N-011-006-36 (double check this part number)

Using this setup, everything is connected with no
need to splice any cables.

FrankQ5

Good comments Chivo23, therefore the trailer detection module, Woodepic recommend this one : 8K0 907 383 E from what I learned on post number 1 of this thread. There should be more clarification about the part number.
Special thanks to those who spent a lot of time doing the research and post all the informations.

FrankQ5

Norskie

You're asking the right questions. Sadly, my experience with U-Haul has been poor so I can't recommend them. They convinced my wife to install a $350 brake controller on our Outback to pull a 1000 # trailer and did a poor job of it, and even lost some of the interior plastic panels. Yes that was limited to "that one" installer, but it seems their incentive is to slap something together so you can rent their trailers. I'd recommend you find a competent mechanic to do the work. As you've seen from the video's, even the hitch isn't just something to bolt to the underside of the car.

The hitch itself is about $200 (https://www.etrailer.com/hitch-2017_Audi_SQ5.htm) so UHaul's price is inline with NOT integrating with the car's electronics. I'm guessing they're going to splice in a generic module which doesn't tell the car it's towing.

I managed to source the module from Europe for about $200 and built my own wiring harness for about $50. I doubt Uhaul is doing that.

After that you'll need to use VCDS or something similar to program the car to recognize the new module, I doubt U-Haul has that equipment.

At that weight you'll also need a brake controller, figure that will cost $200+

Norskie

Something else I thought about ... weight-distribution hitches (WDH).

You'll be towing right at the limit of the Q5 platform, with about 450# tongue weight, unless you've updated the rear springs you'll be squatting a bit, a WDH might be recommended but I don't see any receivers rated for use with a WDH.

I've considered doing pretty much what you are but I've always come away from those discussions with the realization that maxing out the SQ5 is probably not going to be a good idea. So let us know how it goes.

browniestarmite

The issue turned out to be that my mechanics VCDS was set to stealth mode in the Options. Once he added values for WSC, Importer, and Equipment Number, the values were changed in the trailer module (69). Afterwards, he deleted the VCDS configuration to reset it back to stealth mode.

Given that, It looks like my trailer module may be in some weird state. The running lights are always on (both with the car off or on) and the trailer turn light error codes simply will not go away even when I have tried numerous times doing the restart procedure listed in this and other threads. All the lights work perfectly fine though. As a result, I'm planning to add a switch on my trailer to turn off the running lights when I park at a gas station, restaurant, etc., and simply ignore the error codes. I may get a different module someday.

And yes, I tried both incandescent and LED bulbs; no difference.

Happy motoring/camping!

FrankQ5

PLEASE NOTE THAT THE CABLE IS NOW SOLD, Thanks to Warhead ( Audiworld member )

Warhead

Thanks, Cable looks great!

FrankQ5

For those interested, I have a trailer module in very good condition, just unplugged from a accidented Q5 2012 . Genuine part number 8K0 907 383 E. Message me for details. Thanks

Audi Q5 Trailer Detection Module

FrankQ5

Please take note that the module is now sold, Thanks to Warhead (Audiworld member)