If you need to move house, go on holiday with a caravan, dispose of green waste, or have a hitch is fairly handy. On this page, we will describe the electrical connection of a trailer hitch of a BMW 2 Series . Indeed, even if the installation procedure is not difficult, it is required to describe some points to consider this intervention without any problem. Firstly, we will discover what the electrical wiring harness of your car hitch consists of, then, in a second step, how to make the electrical connection of the hitch of a BMW 2 Series .

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What’s the wiring harness for a BMW 2 Series hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a BMW 2 Series?

So we will start our content by detailing the basics of a wiring harness of a BMW 2 Series. In order to figure out how it works, you must previously figure out its necessity. If you have a trailer or a caravan to tow, it is necessary and earlier all mandatory by the highway code to respect 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 meet all the electrical obligations, you will need to install a wiring harness connection on the hitch trailer of your BMW 2 Series . We will look into this in this post, if you want to find out how to install the hitch of a BMW 2 Series, please discover our content on this topic.

What is the electrical connection of the trailer hitch of a BMW 2 Series?

We will now quickly describe how the electrical connection of your hitch works. The connection uses the 12-volt current from your car to power the hitch lights on your BMW 2 Series. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a BMW 2 Series trailer, 7 pins : This is the classic plug that will be discovered on all BMW 2 Series hitches. This electrical connection will allow you to transmit all the lighting functions needed 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 BMW 2 Series: This plug system is specifically used for caravans that require 12 volts inside to supply the various electrical gear in the cabin. This sort of connection requires 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 BMW 2 Series?

To end this content, we will quickly describe you how to produce the connection of the wiring harness of your BMW 2 Series .

How to make the connection of the wiring harness of an old BMW 2 Series?

To mount the wiring harness of an old BMW 2 Series, you will have to go and get all the required cables in the rear lights of this one. We recommend you to call in a car electrician for this intervention because it is difficult, but we will nevertheless summarize the main steps to be carried out:

  • Remove the trunk lining from your BMW 2 Series to access the rear light unit.
  • Locate 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 2 Series?

For new BMW 2 Seriess, the wiring harness is much easier to connect:

  • You can use a multiplexable box, you will find specific ones for your BMW 2 Series 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.
  • Remove the trunk lining from your BMW 2 Series so that you can route the cables from your box to the front of your BMW 2 Series 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 2 Series?

Finally, to end this content we will quickly describe you how to produce the electrical connection of a caravan on your BMW 2 Series . To do this you will inevitably have to go through one of the previous steps, it’s up to you to select the one that means 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 need more guides on the BMW 2 Series, go to our BMW 2 Series category.