Whether you feel you can’t see as well during the night, regardless you feel you’re lighting too low or too high, in all of these occasions, there’s only one part of your car to blame – your low beams. Despite the fact this adjustment may look easy thanks to the thumbwheel on your dashboard, a complete adjustment is much more technical than this ordinary manipulation, and in this document, we will discover how to adjust the low beam lights of your Citroen C4? For this, first of all we will discover why you should adjust your lights, and, secondly, how to adjust the low beam lights of your Citroen C4.

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Why set the low beam lights of your Citroen C4?

So let’s commence our document with the benefit of adjusting the low beam lights of your Citroen C4. For many of us these lights are well enough adjusted, and it seems that they light up enough at night. Sadly this is not always the case and verifying this setting, either because the low beams of your Citroen C4 are not lighting up well, or because you have the sense that they are too weak or too strong is a good plan .

Adjusting the low beam of your Citroen C4 for safety is a good plan.

Firstly, the adjusting of the dipped headlights of an Citroen C4 must be done for a elementary safety reason. Regardless whether it’s for you, or for the other users you come across during your night trips. In reality, if you don’t see enough, the real danger is to fail to see an obstacle on the road, or to predict a curve badly. Alternatively, if your lights are too strong, you risk dazzling the car owners in front of you, and thus putting yourself in danger. It is as a consequence imperative for others as well as for you to have an ideal setting of your parking lights.

Setting the low beam headlights of an Citroen C4 for law justifications

Moreover to safety, there is a law that supervises the power, the adjustment of low beams of cars, here is what it specifies: have between 2 and 4 headlights that light up at least 30 meters. Another legislation supervises their use, the European one (directive 76/756/EEC), which stipulates that the height of the beam must be between 500 mm and 1200 mm from the floor, and that they must be at least 600 mm apart.

How to adjust the low-beam headlamps of a Citroen C4?

We will now go forward to the section that interests you the more in this document, how to adjust the low beams of his Citroen C4? This setting may seem to be a bit complex, but if you follow the instructions you should be able to do it without too much problem.

Preparations to set the low beam of a Citroen C4

Firstly, you will need to set up your car to adjust your low beam lights in good conditions, here are the preparations to do:

  • Place your car on a floor in front of a white wall for example, about 4 or 5 meters from the wall.
  • Verify your tire pressure rigorously.
  • Verify that the height adjustment knob for the lights is set to 0
  • .

  • Try doing that with half a full tank.
  • Remove all needless weight from the car, only one person should be in the driver’s seat.

The setting of the low beam headlights of his Citroen C4

Once your car is into position, you will switch on your dipped beam and make a cross-shaped mark (one horizontal and one vertical section) in the middle of the beam that will be projected on the wall. Make sure with a level that both parts of the cross are straight. Then step back your car up to a distance of between 7 and 10 metres. For the rest of the operation here are the simple steps to follow:

  • Open your bonnet, locate the screws for horizontal and vertical adjustment of the lights of your Citroen C4 (they are almost always marked, and those above must adjust the verticality and those on the side manages the horizontality of the adjustment).
  • Use a cloth or something else to hide the light on which you are not making the manipulation.
  • Using the screws to make the horizontal manipulation, you should have the most strong part of the beam which should be a little to the right of the vertical line marked on the wall
  • .

  • With regard to vertical manipulation, you will have to use the screw to try to position the upper end of the beam at the level of the horizontal marking on the wall, or slightly below.
  • Once finished, verify that the low beam setting of your Citroen C4 is consistent on the road, do not hesitate to verify that it has been driven, sometimes it may move.

If you want to adjust the fog lights on your Citroen C4, please read our document on this subject.

If you wish more guides on the Citroen C4, go to our Citroen C4 category.