If you need to move house, go on vacation with a caravan, dispose of green waste, or have a hitch is pretty handy. In this post, we will describe the electrical connection of a trailer hitch of a Mercedes Benz GLA Class . Indeed, even if the set up process is not complex, it is required to explain some points to consider this work without any problem. Firstly, we will see what the electrical wiring harness of your motor vehicle hitch contains, then, in a second step, how to make the electrical connection of the hitch of a Mercedes Benz GLA Class .

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What’s the wiring harness for a Mercedes Benz GLA Class hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Mercedes Benz GLA Class?

So we will start our article by detailing the principles of a wiring harness of a Mercedes Benz GLA Class. In order to figure out how it functions, you must already figure out its necessity. Whether you have a trailer or a caravan to tow, it is essential 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 satisfy all the electrical obligations, you will need to install a wiring harness connection on the hitch trailer of your Mercedes Benz GLA Class . We will look into this in this article, if you want to find out how to install the hitch of a Mercedes Benz GLA Class, please see our article on this theme.

What is the electrical connection of the trailer hitch of a Mercedes Benz GLA Class?

We will now quickly describe 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 Mercedes Benz GLA Class. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Mercedes Benz GLA Class trailer, 7 pins : This is the classic plug that will be discovered on all Mercedes Benz GLA Class hitches. This electrical connection will enable you to transmit all the lighting functions necessary for the rear signalling of your trailer, you will locate 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 Mercedes Benz GLA Class: This plug system is principally used for caravans that necessitate 12 volts inside to supply the different electrical gear in the cabin. This kind 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 motor vehicle is switched on).

How do I hook up the wiring harness of a Mercedes Benz GLA Class?

To end this article, we will quickly describe you how to produce the connection of the wiring harness of your Mercedes Benz GLA Class .

How to make the connection of the wiring harness of an old Mercedes Benz GLA Class?

To install the wiring harness of an old Mercedes Benz GLA Class, you will have to go and get all the required 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 main steps to be performed:

  • Take out the trunk lining from your Mercedes Benz GLA Class 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 Mercedes Benz GLA Class?

For recent Mercedes Benz GLA Classs, the wiring harness is much simpler to connect:

  • You can use a multiplexable box, you will locate specific ones for your Mercedes Benz GLA Class 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 Mercedes Benz GLA Class so that you can route the cables from your box to the front of your Mercedes Benz GLA Class 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 Mercedes Benz GLA Class?

Finally, to end this article we will quickly describe you how to produce the electrical connection of a caravan on your Mercedes Benz GLA Class . 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 means 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 wish more guides on the Mercedes Benz GLA Class, go to our Mercedes Benz GLA Class category.