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 show you the electrical connection of a trailer hitch of a Bmw Serie 3 E90 . In truth, even if the set up process is not difficult, it is necessary to explain some points to consider this work without any issue. First of all, we will see 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 Bmw Serie 3 E90 .
What’s the wiring harness for a Bmw Serie 3 E90 hitch trailer?
Why do we have to connect a wiring harness with the hitch trailer of a Bmw Serie 3 E90?
So we will begin our content page by detailing the principles of a wiring harness of a Bmw Serie 3 E90. In order to understand how it functions, you must previously understand its necessity. If you have a trailer or a caravan to tow, it is essential and above all mandatory by the highway code to respect certain laws, 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 Bmw Serie 3 E90 . We will focus on this in this article, if you want to discover how to install the hitch of a Bmw Serie 3 E90, please see our content page on this subject.
What is the electrical connection of the trailer hitch of a Bmw Serie 3 E90?
We will now 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 Bmw Serie 3 E90. There are two different systems of electrical connection for a hitch, here they are:
- The 7-pin electric plug for a Bmw Serie 3 E90 trailer, 7 pins : This is the classic plug that will be determined on all Bmw Serie 3 E90 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 objective (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 3 E90: This plug system is specifically used for caravans that require 12 volts inside to supply the different electrical gear in the cabin. This kind 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 car is switched on).
How do I hook up the wiring harness of a Bmw Serie 3 E90?
To end this content page, we will quickly show you you how to produce the connection of the wiring harness of your Bmw Serie 3 E90 .
How to make the connection of the wiring harness of an old Bmw Serie 3 E90?
To mount the wiring harness of an old Bmw Serie 3 E90, you will have to go and get all the necessary cables in the rear lights of this one. We advise you to call in a motor vehicle electrician to do this intervention because it is difficult, but we will nevertheless summarize the most important steps to be performed:
- Take out the trunk lining from your Bmw Serie 3 E90 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 Bmw Serie 3 E90?
For new Bmw Serie 3 E90s, the wiring harness is much simpler to connect:
- You can use a multiplexable box, you will discover specific ones for your Bmw Serie 3 E90 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 Bmw Serie 3 E90 so that you can route the cables from your box to the front of your Bmw Serie 3 E90 and connect them to your fuse box.
- Install the circumstance in the trunk properly.
- You don’t have to retrieve your cables from the trunk and connect them to your outlet.
0
How do you hook up the power to a trailer on Bmw Serie 3 E90?
Finally, to end this content page we will quickly show you you how to produce the electrical connection of a caravan on your Bmw Serie 3 E90 . To get this done you will automatically 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 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.
To find more tips on the Bmw Serie 3 E90, take a look at the Bmw Serie 3 E90 category.
