Some specific parts of your BMW 4 Series are vital, regardless for your security or that of other individuals, being sure that all these parts are operating properly is part of your legal and moral obligations. On this page, we are going to look at one of these parts, your vehicle’s blinkers, the turn signals. In fact, you may have a blinker problem on BMW 4 Series, whether it’s because they’re burned out, they produce an uncommon noise, or whatever, we’re going to try to solve your worries today so that you can get back on the road with secure feeling. To achieve this, we will discover one by one various blinker problems on BMW 4 Series and the solutions to fix them.


The various blinker problems on BMW 4 Series and their solutions

We will so compose our article depending to the type of blinker issue you are struggling with on your BMW 4 Series. You should know that the turn signals are the only parts that allow other road users to know your changes in direction, so it is necessary that they are in good working order.

Blinker problem that does not flash on one side on BMW 4 Series

If you are in the situation where, when you turn on your blinkers on the left or right side of your BMW 4 Series they do not light up while on the other side everything functions properly. In this situation it may be that both of your blinker bulbs are burnt out, first step for you to examine the state of your blinker bulbs, check out our article on changing the indicator bulb on BMW 4 Series if you don’t know how to do this operation. Bear in mind to examine the condition of the bulb socket, it may be oxidized and the electrical contact may be bad. If after examining the bulbs of the blinkers of your BMW 4 Series are not burnt out, you will have to remove the comodo of your turn indicators to examine that there is no false contact when you switch it on the troublesome side.

Problem no blinker lights on BMW 4 Series

Second blinker problem you may experience on BMW 4 Series, none of your flashers light up. If you are in this situation there is a good chance that it is an electrical issue that is the cause of the turn signal troubles. You will have to examine the turn signal fuse on your BMW 4 Series, please read our article to find it quickly. Most frequently your fuse is blown, in any other case it could be the fuse relay that is leading to the issue. At last, if your fuses and relays are in good condition, examine that the flasher comodo is well powered.

Problem a blinker doesn’t light up on BMW 4 Series

Now the most basic case of blinker problems on BMW 4 Series, only one of your blinkers doesn’t work. In this situation, the issue is usually simple to solve and a change of a burnt-out bulb will be enough to solve it. If this is not enough, bear in mind to verify the condition of the bulb socket which could cause a bad electrical contact and thus prevent the bulb from lighting up.

Blinker problem that lights up atypically on BMW 4 Series

Finally, the last issue you may experience is that the turn indicators of your BMW 4 Series make a different noise when you turn them on or that they work randomly. Two situations, or you have a short circuit somewhere in your electrical installation or, your turn indicator unit is damaged.


As seen earlier on this page, flashing lights are important security parts on your BMW 4 Series, you must constantly be sure that they are functioning properly. No matter what the cause of the flasher issue is, it must be cured as quickly as possible because accidents happen fairly quickly and whether it’s a simple fender bender or something more serious, you are bound to be at fault.

To get more tips on the BMW 4 Series, take a look at the BMW 4 Series category.