Regardless of you need to move house, go on holiday with a caravan, get rid of of green waste, or have a hitch is pretty handy. On this page, we will describe the electrical connection of a trailer hitch of a Bmw Serie 1 F21 . Indeed, regardless if the set up process is not difficult, it is necessary to explain some details to consider this intervention without any issue. Firstly, we will find out what the electrical wiring harness of your car hitch contains, then, in a second step, how to make the electrical connection of the hitch of a Bmw Serie 1 F21 .

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What’s the wiring harness for a Bmw Serie 1 F21 hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Bmw Serie 1 F21?

So we will commence our article by detailing the basics of a wiring harness of a Bmw Serie 1 F21. In order to figure out how it functions, you must previously figure out its necessity. If you have a trailer or a caravan to tow, it is necessary and above all mandatory by the highway code to follow certain protocols, 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 obligations, you will need to install a wiring harness connection on the hitch trailer of your Bmw Serie 1 F21 . We will focus on this in this post, if you want to learn how to install the hitch of a Bmw Serie 1 F21, please find out our article on this theme.

What is the electrical connection of the trailer hitch of a Bmw Serie 1 F21?

We will now quickly describe how the electrical connection of your hitch functions. The connection uses the 12-volt current from your car to power the hitch lights on your Bmw Serie 1 F21. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Bmw Serie 1 F21 trailer, 7 pins : This is the classic plug that will be located on all Bmw Serie 1 F21 hitches. This electrical connection will allow you to transmit all the lighting functions required for the rear signalling of your trailer, you will discover a plug for each action (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 Bmw Serie 1 F21: This plug system is specifically used for caravans that require 12 volts inside to supply the various electrical equipment in the cabin. This type of connection necessitates 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 car is switched on).

How do I hook up the wiring harness of a Bmw Serie 1 F21?

To finish this article, we will quickly describe you how to make the connection of the wiring harness of your Bmw Serie 1 F21 .

How to make the connection of the wiring harness of an old Bmw Serie 1 F21?

To mount the wiring harness of an old Bmw Serie 1 F21, 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 car electrician for this intervention because it is difficult, but we will nevertheless summarize the main steps to be performed:

  • Remove the trunk lining from your Bmw Serie 1 F21 to access the rear light unit.
  • Identify 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 Bmw Serie 1 F21?

For recent Bmw Serie 1 F21s, the wiring harness is much less complicated to connect:

  • You can use a multiplexable box, you will discover particular ones for your Bmw Serie 1 F21 and universal models. It’s up to you to choose according to your budget, know that a universal version costs between 30 and 60 euros.
  • Remove the trunk lining from your Bmw Serie 1 F21 so that you can route the cables from your box to the front of your Bmw Serie 1 F21 and connect them to your fuse box.
  • Install the case in the trunk effectively.
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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 Bmw Serie 1 F21?

Finally, to finish this article we will quickly describe you how to make the electrical connection of a caravan on your Bmw Serie 1 F21 . To do this you will automatically have to go through one of the previous steps, it’s up to you to choose the one that corresponds to your model and your budget. After you have done 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 tutorials on the Bmw Serie 1 F21, go to our Bmw Serie 1 F21 category.