Whether for your own safety, for roadworthiness tests or to avoid a fine, making sure your turn signal bulbs are constantly functional is critical. In actual fact, bulbs are wearing parts that will surely burn out over time and as a result need to be replaced. You’re most certainly in this article because one of your rear turn signals is burnt out and you’re concerned about how to change the bulb of a rear turn signal on you Mercury Mariner, we’ve put into writing this content to enable you do it without any help without having to go to your motor mechanic. To begin , we will look at inspecting a burnt-out rear turn signal bulb on your Mercury Mariner and in a second step, how to change the rear turn signal bulb on your Mercury Mariner.


How to be sure if the rear turn signal bulb on your Mercury Mariner is burnt-out or needs to be replaced?

When you drive your car you don’t constantly have the possibility to check all the safety features of your Mercury Mariner. In actual fact, you are more often than not in a rush and are likely to get into your car, make your trip and put it down right away without taking the time to do an occasional check-up. It is as a result important to spend some time to occasionally check the condition of your headlights and turn signals. It’s quite possible that you have a burnt-out rear turn signal on your Mercury Mariner, but you didn’t notice it. Here are the two basic ways to check if a rear turn signal on your car is out of order or if you need to change it as soon as possible:

  • When you stop, turn on the ignition on your Mercury Mariner, then alternately turn on your left and right rear turn signals and get out of the car to check that they are working.
  • By listening to the sound of your turn signals. In fact, there is an audible indicator on each car that alerts you of a rear turn signal bulb burnt out on your Mercury Mariner, you will recognise that the time between each “click” is much closer, this involves that you will have to change the rear turn signal bulb or before. It’s up to you to examine and verify which one is burnt out by a visual check as on the first strategy shown above.

You may have another bulb to change, like the one of your low beam Mercury Mariner or your position lights on Mercury Mariner, don’t be reluctant to read our content articles to help you to achieve this replacement.

Replacing the rear turn signal bulb on my Mercury Mariner

Now let’s go to the most important step of this content page, how to change the rear turn signal bulb on Mercury Mariner? Please be aware that this technique is fairly simple, you will need to access, from the inside of your trunk, your headlight unit, open it and change the burnt out rear turn signal bulb on your car. If it is a bulb on your front turn signal on your Mercury Mariner, see our dedicated article content. On the other hand, here are the detailed steps to stick to in order to perform this work accurately:

  • To access the tail light assembly, take out the carpeting or plastic cover to access the tail light assembly.
  • Use a screwdriver or torx wrench (6-pointed star) to open the tail light assembly.
  • Remove the rear indicator bulb from your burnt-out turn signal that you have earlier in this article recognized by an external visual inspection, for this you will need to make a quarter turn in a counter-clockwise direction
  • Change the rear turn signal bulb on your Mercury Mariner. There are two types of bulbs, transparent bulbs when the cover is orange, or orange bulbs when the cover is transparent, select the right model for your car
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  • Remount your rear turn signal bulb and close your tail light block, then, check your new turn signal bulb is working correctly

To discover more tips on the Mercury Mariner, take a look at the Mercury Mariner category.