Skip the auto shop - Our mechanics make house calls

Q: Right headlight randomly goes off

asked by on

The right headlight in my car usually doesn’t work. It occasionally does come on, so it must not be the bulb. But it’s ‘off’ more than it is on. When the bulb is off, the dash indicator light come on - and when the bulb is on, the indicator light goes off. It all seems to be random and there doesn't seem to be any pattern for when it works or not. When I'm driving, it doesn’t turn on or off. If it’s off, it stays off and if on, it stays on. What is causing this and what is your advice for repairing it?

Hello there. A few different parts can cause the bulb to intermittently work. The most likely is the bulb itself beginning to fail. Sometimes they do not fail immediately but will work at times until they fail fully. Other possible causes would be: a wiring issue, the headlight switch, or a failing headlight housing. If you want to have this fixed, a certified mechanic from YourMechanic can come to your home of office to inspect your lights and make repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 2003 Acura TL type S and it is experiencing starting issues. The spark plugs have been replaced with NGK plugs and the co

Hi there. The Acura has an ignition control module, but I would suspect that your starting issues in hotter weather are fuel system related and not with the ignition system. As the weather heats, the ability for fuel and air...

Q: I drove without coolant for about 20 miles and the radiator fan is making a loud noise, how do I fix it?

There could be problems with your water pump, coolant lines, radiator overflow reservoir or the radiator that is causing a serious leak. Driving without coolant for any period of time can cause damage to your radiator or other cooling system...

Q: my car is misfiring

The DME is a possible failure for the misfire for your 2002 BMW M3. A complete pinpoint test for the codes would need to be done to rule out anything like coils or plugs. Your shop replaced the plugs and...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.