Replacing a headlight relay is a DIY-friendly repair that you can usually do yourself. A headlight relay generally costs less than $30 for just the part itself.
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What would cause one high beam not to work?
One headlight doesn’t work This is usually caused by a burned out bulb. You can Replace the bulb. If it still doesn’t work, suspect a wiring or fuse problem.
What does adaptive headlight malfunction mean on a BMW?
Water or condensation within the headlight is the most common cause for adaptive headlight failure, because the moisture can damage the adaptive headlight module. If there is no water or condensation inside the headlight, then the adaptive headlights could be failing because of a damaged or worn out part.
Why is my right side headlight not working?
The likely cause is a fuse, headlight relay, headlight switch, dimmer switch or a wiring fault. About the only cause that is an easy fix is a blown fuse. Consult your owner’s manual to locate the main fuse for the headlight circuit and replace that fuse with one having the same amp rating.
What causes headlight malfunction?
Most total headlight failures are caused by a bad component like a fuse, relay, or module. Wiring problems can also cause both headlights to stop working. High beam headlights don’t work or low beams don’t work. The cause: A burned out bulb, or a problem with the high beam switch or relay.
How do I know if my high beam relay is bad?
- Headlight doors don’t open.
- Headlight doors stuck open.
- Headlight doors operate erratically and open or close on their own.
How much does it cost to fix BMW Adaptive headlight malfunction?
The average cost for a Headlamp Control Module Replacement is between $841 and $890 but can vary from car to car.
How do you reset BMW headlights?

What is BMW High Beam Assist?
High Beam Assistant automatically switches your high beams on and off when there is oncoming traffic or a vehicle in front of you.
Will a blown fuse cause only one headlight to go out?
If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams.
Does each headlight have a fuse?
Like all electrical systems, the headlights in your vehicle have a fuse in the circuit to prevent too much electricity from reaching the bulb. There will also be a headlight relay that switches power from the low beams to the high beams.
How can you tell if a headlight fuse is blown?
The blown fuse will be apparent because the wire element within will have melted or burned from the higher electrical current. You can also use a test light or a multimeter to identify the dead fuse without having to pull it out. Both tools are affordable and easy to use.
Where is the relay for high beam?
Usually, it is under the hood of the car. The point where your fuse panel is most likely located. On the other hand, it may also be located inside the cab of the car, this would be the case if your car comes with an interior fuse box.
How do you code BMW headlights?
To code the front headlamps go to Vehicle Management – Control unit exchange, select Frontal Light Electronics Left (FLEL) and Frontal Light Electronics Right (FLER) and click on the Display action plan.
Are high beams and headlights the same bulb?
Vehicles that use single filament bulbs in the headlights have two separate bulbs. One bulb functions as the low beam or dipped beam headlight, and the other can be turned on to create the brighter high beams or main beams.
Can AutoZone replace high beams?
AutoZone can help you replace a burnt-out headlight bulb, but only if you’ve purchased the new bulb from their company, and only if the replacement doesn’t require any vehicle disassembly. Experienced AutoZone employees can help you with a simple replacementโbut AutoZone isn’t a stand-in for a professional mechanic.
How can you tell if a relay is blown?
With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located). If there isn’t, check to see if the appropriate fuse has blown.
How do you check a headlight relay?

How much does it cost to replace a headlight switch?
The average cost of replacing the headlight switch or the dimmer switch is in the range of $150-$250. Sometimes, accidents can damage the headlight and you are left with no option but to replace the entire assembly unit.
How do you test a high beam wire?

How much does it cost to replace a BMW headlight assembly?
BMW headlight assembly typically cost between $303.99 and $3183.99.
How much does it cost to replace a BMW headlight?
The Best in Auto Repair The average cost for a BMW 328i headlight bulb replacement is between $193 and $329. Labor costs are estimated between $57 and $72 while parts are priced between $136 and $258. This range does not include taxes and fees, and does not factor in your specific model year or unique location.
How much does it cost to replace a BMW light?
Usually, you can expect to pay around $120 โ $170 to replace your headlights. This includes spare parts cost ($90 โ $115) and labor charges ($30 โ $55).
Do BMW headlights need to be programmed?
Yes it needs to be programmed since you installed different modules, the car does not know that. Okay thanks. So it’s normal that no light is coming on even turn signal? It’s a led headlight.
How do I reset my BMW electronics?
