Are you having trouble with your BMW 5 series headlight? Don’t worry; you’re not alone. In this blog, we’ll explore some common BMW 5 series headlight problems, causes and discuss potential fixes.
Common BMW 5 Series Problems And Their Possible Solutions
1) Headlight Vertical Aim Control Failure
Headlight vertical aim control failure is a common issue that can leave your BMW 5 series headlight not working. It is caused by a faulty headlight control module.
This module is used to adjust the vertical aim of the headlights. When this module fails, it prevents the headlight from being able to be adjusted correctly.
How To Fix It?
If the headlight vertical aim control failure is caused by a faulty headlight control module. Then it can be fixed by replacing the module. Here are the steps to do this:
1. Disconnect the negative battery cable.
2. Remove the headlight control module.
3. Install the new headlight control module.
4. Reconnect the negative battery cable.
5. Adjust the vertical headlight aim.
For instance, watch this video to have an idea.
2) Adaptive Headlights Not Turning or Adjusting Properly
Adaptive headlights are headlights that can change their beam pattern in order to better illuminate the road ahead. They are a type of headlight technology that is increasingly common in modern vehicles, including BMW’s 5 Series.
There are several potential causes of adaptive headlights not turning on in a BMW 5 Series. The most common cause is a faulty sensor. This can be caused by a faulty connection or a wiring issue.
How to Fix It?
Here are steps to fix this issue:
- The first step is to check the connection and wiring for any signs of damage.
- If the connection and wiring appear to be in good condition. Check the fuses and relays to make sure they are functioning properly.
- If these components are functioning properly, then the next step is to check the motor and module for any signs of damage or malfunction.
- If any of these components need to be replaced. Then it is best to have a professional mechanic do the work.
3) Front Turn Signal Indicators Not Working
Another common issue that can leave your BMW 5 series headlight not working is the Front turn signal indicators not working. Front turn signal indicators, also known as direction indicators or blinkers. They are lights that indicate the direction a vehicle is turning.
Front turn signal indicators can stop working due to a number of different issues. In the case of the BMW 5 Series, the most common cause of a non-functioning indicator is a faulty or worn-out bulb.
How to Fix It?
If the issue is determined to be a faulty bulb. Then the bulb can be replaced with an OEM part from a BMW dealership or online. And if the issue is determined to be a fault in the headlight assembly. Then the assembly will need to be replaced with an OEM part.
Replacing the entire headlight assembly is a complex job. It should be done by a qualified technician.
4) Headlight Auto-Leveling Not Working
Headlight auto-leveling can also leave your BMW 5 series headlight not working. This feature is critical in order to ensure that the headlights are pointing in the right direction on the road.
Common causes of this issue can include a faulty headlight sensor, a malfunctioning leveling motor, or a faulty suspension system. In some cases, a problem with the wiring or the headlight switch can also cause this issue.
How To Fix It?
In order to fix this issue, the first step is to inspect the headlight sensor, leveling motor, and suspension system. And if any of them are found to be faulty. They should be replaced with new ones.
Additionally, any wiring or headlight switch should also be checked and replaced if necessary. Once all of these components have been checked. The headlights should be leveled manually.
This can be done by adjusting the height of the headlights. This can be done by loosening the screws at the back of the headlight assembly and then adjusting the height of the headlight.
5) High Beams Not Working
High beams are a necessary and important safety feature for all vehicles. Unfortunately, it is not uncommon for them to malfunction from time to time. The most common cause of a high beam not working on a BMW 5 Series is a faulty headlight switch.
This switch sends a signal to the lights. This tells them when to turn it on. If the switch is not working properly, the lights will not activate.
How To Fix It?
To fix a high beam not working. You should first check the headlight switch. And if it is not working, You will need to replace it with a new one.
If the headlight switch is working. Then you should check the bulb.
Also, check the wiring connections to make sure everything is connected properly. You may also need to replace the relay if it is not activating properly.
Once all the components have been checked and replaced. You should test the high beams to make sure they are working properly.
6) Red Headlight Error Sign
A Red Headlight Error sign can also leave your BMW 5 Series Headlight Not Working. This error is an indicator that one or more headlight bulbs are not functioning properly. This error sign can be seen on the dashboard of the car. Accompanied by a red light.
The cause of this error sign is often a headlight bulb that has gone out or is malfunctioning. This can happen as a result of wear and tear over time. It can also be due to a faulty bulb that was installed in the car.
How To Fix It?
To fix the red headlight error sign, the bulb needs to be replaced. To do this, the car’s hood should be opened, and the headlight should be accessed. The old bulb should be removed and replaced with a new one.
Once the bulb has been replaced, the headlight should be aligned correctly to ensure that it is pointing in the right direction.
May be useful for you: 9 Ways to Deal with Spec D Tuning Headlight problems
7) Low Beam Headlights Not Working
Low-beam headlights are an essential part of driving at night and in bad weather. There are several causes of this problem for the low beam of the BMW 5 series not working. These causes include a blown fuse and a faulty headlight switch.
How To Fix It?
To fix the issue, If the problem is a blown fuse. It will need to be replaced.
If the problem is a faulty headlight switch. It will need to be replaced. And if the problem is a faulty headlight bulb. It will need to be replaced. And finally, if the problem is a faulty wiring harness. It will need to be replaced.
Learn a detailed guide on headlight problems in BMW and their fixes.
8) Headlight Housing Moisture or Condensation Build-up
It is another common BMW 5 series headlight not working issue. It can be caused by a variety of different factors. Ranging from environmental conditions to manufacturing defects.
How To Fix It?
The best way to fix it is to replace the headlight housing. This can be done at a professional mechanic shop or at a BMW dealership. The cost of the repair can range from a few hundred dollars to several thousand dollars.
If the headlight housing is not replaced. The condensation can be cleared away with a soft cloth and a mild glass cleaner. However, this is only a temporary fix, and the condensation will likely return. And if the condensation persists. It is best to have the headlight housing replaced.
9) Daytime Running Lights Flickering
Daytime running lights (DRL) are an important safety feature on BMW 5 Series cars. Unfortunately, they can sometimes start to flicker. This can be a cause for concern. The good news is that, in most cases, this can be easily fixed.
The most common cause of flickering daytime running lights on the BMW 5 Series is a faulty turn signal switch or relay. Another possible cause of flickering daytime running lights on a BMW 5 Series is a faulty headlight switch.
How To Fix It?
To fix the issue, the faulty component will need to be replaced, or the wiring connections in the headlight circuit should be inspected and replaced.
10) Headlight Lens Damage
Headlight lens damage or discoloration can also leave your BMW 5 Series Headlight Not Working. This can significantly reduce the headlights’ visibility and adversely affect the vehicle’s aesthetics.
The main cause of headlight lens damage on the BMW 5 series is exposure to the elements. UV rays, road debris, and extreme temperatures can cause the headlight lens to deteriorate over time.
How to fix it?
If you wish to repair the headlight lens yourself. You can purchase a headlight lens restoration kit. These kits usually include a sanding pad, a polishing compound, and a sealant or protective coating.
The sanding pad is used to remove the damaged or discolored layer of the headlight lens. The polishing compound is then used to restore the clarity and shine of the lens. Finally, the sealant or protective coating is applied to protect the headlight lens from further damage.
Headlight Problems in Other BMW Models:
- BMW Mini Headlight Problems
- BMW 1 series headlight Problems
- BMW Headlight Problems
- BMW 5 Series Headlight Problems
Tips For Maintenance of The BMW Series 5 Headlights
Check Headlight Bulbs Regularly
The headlights of the BMW Series 5 should be checked regularly for any signs of wear or tear. And if the bulbs are not performing as they should. It is important to replace them.
Clean Headlights
Dirt, dust, and other debris can accumulate on the headlights over time. This reduces their efficiency and brightness. Ensure that the headlights are working as they should. It is important to keep them clean. This can be done with a simple cloth and some mild soap and water.
Check wiring
The wiring of the headlights should be checked regularly for any signs of wear or damage if the wiring is loose or frayed. It should be replaced immediately to prevent any further damage to the headlights.
Check for Corrosion
The headlights should also be checked for any signs of corrosion. This can cause the bulbs to become less efficient and even malfunction if corrosion is found. It should be cleaned and treated with an anti-corrosion product.
Replace Damaged Headlights
If the headlights are damaged, it is important to replace them as soon as possible. Damaged headlights can cause visibility problems and can be a safety hazard.
Have Headlights Professionally Serviced
It is recommended to have the headlights professionally serviced at least once a year to ensure that they are working as they should. This can help to prolong the life of the headlights and keep them in top condition.
Headlight Problems in Toyota Models:
- Toyota Auris headlight problems
- Toyota Land cruiser headlight problems
- Toyota RAV4 headlight problems
FAQs
How do you reset BMW headlights?
To reset BMW headlights, you will need to disconnect the negative battery cable for a few minutes. Reconnect the cable and start the car to reset the headlight module.
Can I use aftermarket bulbs in my BMW 5 Series headlights?
Yes, you can use aftermarket bulbs in your BMW 5 Series headlights as long as they are of the correct size and wattage.
Can a damaged wiring harness cause a headlight issue?
Yes, a damaged wiring harness can cause a headlight issue. It could be a bad connection or a short in the wiring.
How much does it cost to replace a BMW 5 Series headlight?
The cost to replace a BMW 5 Series headlight can vary depending on the type of headlight and the type of replacement bulb. Generally, the cost is between $150 and $300.
Can a dead battery cause the BMW 5 Series headlights to stop working?
Yes, a dead battery can cause the BMW 5 Series headlights to stop working. This is because the headlights are powered by the car’s electrical system. This electrical system is powered by a battery.
