Whether you need to move house, go on holiday with a caravan, get rid of of green waste, or have a hitch is fairly handy. In this post, we will explain the electrical connection of a trailer hitch of a Mercedes Sprinter . Indeed, regardless if the installation process is not difficult, it is required to explain some details to consider this work without any issue. First of all, we will discover what the electrical wiring harness of your motor vehicle hitch consists of, then, in a second step, how to make the electrical connection of the hitch of a Mercedes Sprinter .
What’s the wiring harness for a Mercedes Sprinter hitch trailer?
Why do we have to connect a wiring harness with the hitch trailer of a Mercedes Sprinter?
So we will start our article by explaining the fundamentals of a wiring harness of a Mercedes Sprinter. In order to discover how it functions, you must already discover its necessity. If you have a trailer or a caravan to tow, it is fundamental 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 meet all the electrical regulations, you will need to install a wiring harness connection on the hitch trailer of your Mercedes Sprinter . We will concentrate on this in this article, if you want to discover how to install the hitch of a Mercedes Sprinter, please discover our article on this subject.
What is the electrical connection of the trailer hitch of a Mercedes Sprinter?
We will now quickly explain 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 Sprinter. There are two different systems of electrical connection for a hitch, here they are:
- The 7-pin electric plug for a Mercedes Sprinter trailer, 7 pins : This is the classic plug that will be discovered on all Mercedes Sprinter hitches. This electrical connection will enable you to transmit all the lighting functions required 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 Sprinter: 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 Sprinter?
To end this article, we will quickly explain you how to produce the connection of the wiring harness of your Mercedes Sprinter .
How to make the connection of the wiring harness of an old Mercedes Sprinter?
To mount the wiring harness of an old Mercedes Sprinter, 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 difficult, but we will nevertheless summarize the most important steps to be accomplished:
- Remove the trunk lining from your Mercedes Sprinter 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 Mercedes Sprinter?
For recent Mercedes Sprinters, the wiring harness is much simpler to connect:
- You can use a multiplexable box, you will discover particular ones for your Mercedes Sprinter 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 Sprinter so that you can route the cables from your box to the front of your Mercedes Sprinter and connect them to your fuse box.
- Install the case in the trunk properly.
- You don’t have to retrieve your cables from the trunk and connect them to your outlet.
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How do you hook up the power to a trailer on Mercedes Sprinter?
Finally, to end this article we will quickly explain you how to produce the electrical connection of a caravan on your Mercedes Sprinter . To achieve this you will automatically 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 need more guides on the Mercedes Sprinter, go to our Mercedes Sprinter category.
