Whether you need to move house, go on vacation with a caravan, dispose of green waste, or have a hitch is fairly handy. In this article, we will show you the electrical connection of a trailer hitch of a Mercedes Benz E Class . Indeed, regardless if the set up process is not complex, it is required to explain some details to consider this work without any issue. 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 Mercedes Benz E Class .

install-trailer-hitchmercedes-benz-e-class

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

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

So we will commence our article by explaining the principles of a wiring harness of a Mercedes Benz E Class. 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 fundamental 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 regulations, you will need to install a wiring harness connection on the hitch trailer of your Mercedes Benz E Class . We will look into this in this post, if you want to discover how to install the hitch of a Mercedes Benz E Class, please discover our article on this theme.

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

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

  • The 7-pin electric plug for a Mercedes Benz E Class trailer, 7 pins : This is the traditional plug that will be located on all Mercedes Benz E Class hitches. This electrical connection will enable you to transmit all the lighting functions necessary for the rear signalling of your trailer, you will discover 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 Mercedes Benz E Class: This plug system is specifically used for caravans that necessitate 12 volts inside to supply the various electrical gear in the cabin. This sort 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 E Class?

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

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

To mount the wiring harness of an old Mercedes Benz E 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 car electrician to do this intervention because it is complex, but we will nevertheless summarize the main steps to be carried out:

  • Remove the trunk lining from your Mercedes Benz E 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 E Class?

For recent Mercedes Benz E Classs, the wiring harness is much easier to connect:

  • You can use a multiplexable box, you will discover specific ones for your Mercedes Benz E 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.
  • Remove the trunk lining from your Mercedes Benz E Class so that you can route the cables from your box to the front of your Mercedes Benz E Class and connect them to your fuse box.
  • Install the case in the trunk effectively.
  • 0

  • 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 E Class?

Finally, to end this article we will quickly show you you how to produce the electrical connection of a caravan on your Mercedes Benz E Class . 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 corresponds to 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 have any additional questions about the Mercedes Benz E Class, do not hesitate to consult our Mercedes Benz E Class category.