If you need to move house, go on holiday with a caravan, get rid of of green waste, or have a hitch is really handy. In this post, we will show you the electrical connection of a trailer hitch of a Audi Q7 . In truth, regardless if the set up procedure is not complex, it is necessary to describe some points to consider this task without any problem. First of all, we will find out what the electrical wiring harness of your motor vehicle hitch involves, then, in a second step, how to make the electrical connection of the hitch of a Audi Q7 .

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What’s the wiring harness for a Audi Q7 hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Audi Q7?

So we will start our content by explaining the basics of a wiring harness of a Audi Q7. In order to discover how it functions, you must previously discover its necessity. If you have a trailer or a caravan to tow, it is fundamental and earlier all mandatory by the highway code to follow certain requirements, here they are:

  • A solid chassis for the trailer…
  • Wheels that fit.
  • An electrical connection.
  • A license plate in plain sight.
  • A stoplight repeater.
  • A traffic light repeater.
  • A blinker repeater.
  • License plate illumination.
  • A fog light repeater.

In order to fulfill all the electrical requirements, you will need to install a wiring harness connection on the hitch trailer of your Audi Q7 . We will look into this in this post, if you want to discover how to install the hitch of a Audi Q7, please find out our content on this theme.

What is the electrical connection of the trailer hitch of a Audi Q7?

We will now fairly quickly show you how the electrical connection of your hitch functions. The connection uses the 12-volt current from your motor vehicle to power the hitch lights on your Audi Q7. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Audi Q7 trailer, 7 pins : This is the classic plug that will be found on all Audi Q7 hitches. This electrical connection will enable you to transmit all the lighting functions required for the rear signalling of your trailer, you will find a plug for each function (left and right indicators, ground, fog light, left and right position light, left and right brake light).
  • Electrical connection for caravan with 13-pin plug for Audi Q7: This plug system is specifically used for caravans that necessitate 12 volts inside to supply the various electrical gear in the cabin. This kind of connection needs the use of an adapter. The extra pins will bring the 12 volt power permanently (to recharge a battery in the caravan) and the 12 volt power in use (to use the 12 volt equipment when the motor vehicle is switched on).

How do I hook up the wiring harness of a Audi Q7?

To finish this content, we will fairly quickly show you you how to make the connection of the wiring harness of your Audi Q7 .

How to make the connection of the wiring harness of an old Audi Q7?

To install the wiring harness of an old Audi Q7, you will have to go and get all the necessary cables in the rear lights of this one. We suggest you to call in a motor vehicle electrician to do this intervention because it is complex, but we will nevertheless summarize the most important steps to be performed:

  • Take out the trunk lining from your Audi Q7 to access the rear light unit.
  • Find the wires that correspond to each of the taillight functions.
  • Connect them to the lugs on the wiring harness on your hitch.
  • Close the whole thing down.

How do you connect the wiring harness of a recent Audi Q7?

For modern Audi Q7s, the wiring harness is much less complicated to connect:

  • You can use a multiplexable box, you will find specific ones for your Audi Q7 and universal models. It’s up to you to select according to your budget, know that a universal version costs between 30 and 60 euros.
  • Take out the trunk lining from your Audi Q7 so that you can route the cables from your box to the front of your Audi Q7 and connect them to your fuse box.
  • Install the circumstance in the trunk properly.
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  • You don’t have to retrieve your cables from the trunk and connect them to your outlet.

How do you hook up the power to a trailer on Audi Q7?

Finally, to finish this content we will fairly quickly show you you how to make the electrical connection of a caravan on your Audi Q7 . To achieve this you will inevitably have to go through one of the previous steps, it’s up to you to select the one that points your model and your budget. After you have conducted this, the last step will be to buy an adapter that goes from a 7-pin plug to a 13-pin plug so that you can benefit from the 12 volt current in your caravan. These adapters come at different prices, you will need to count between 15 and 40 euros. All you have to do is plug it into your 7-pin plug.

If you want more guides on the Audi Q7, go to our Audi Q7 category.