Are Special Tools Needed To Install Tekonsha 119250KIT On 2021 Audi Q5?
Updated 10/27/2025 | Published 03/02/2025
Question:
Looking to install a hitch on our 2021 Audi Q5. I contacted the local authorized dealer and they said they couldnt install the wiring harness because they didnt have the necessary coding tool required for the car. Does the car need special coding for the wiring to work?
asked by: James
Expert Reply:
Hello James, thanks for reaching out. For a wiring harness for your 2021 Audi Q5 I recommend the Tekonsha ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT. Reason, being this can be installed out your Audi without the need for any coding tool or anything like that. If installed properly, the vehicle will not even know it is there. This harness uses clamps that go around the wires and detect electrical pulses. So you can tap into those signals without cutting any of the vehicle wiring. Any qualified installer should be able to do this. No special tools are required, just a bit of know-how.
You will find the manufacturer instruction linked below, as well as a link to our install video.
Leave a reply below with and questions or comments and I will get back to you.
(click to enlarge)
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Q&A: What Is The Difference Between Tekonsha ZCI Wiring 119251 and 119250KIT
- Q&A: Trailer Hitch and Wiring that Fits 2021 Audi Q5 PHEV
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Trailer Wiring Diagrams
- Search Results: trailer wiring
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Article: How to Measure for Trailer Hitch Drop
- Video: Clean Up Your Trailer Wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Brake Controller
- Video: How to Choose a Trailer Brake Controller
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: trailer hitch ball mount
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: trailer jack
on Custom Fit Vehicle Wiring
Jesse M.
10/27/2025
Hey James, how did things go with the Tekonsha ZCI wiring harness on your Audi Q5? Did the install go smoothly without needing any coding tools? Your update could make it easier for the next person working on the same setup.