Though Porsche is known for its high-performance levels, a common issue many Porsche owners have is dim headlights. Headlights that do not project a bright enough beam can prevent other drivers from seeing you clearly and also prevent you from seeing the road ahead. This can lead to a collision.
Causes of Dim Headlight Issues in Your Porsche
If you’ve been noticing that your headlights have decreased in intensity, there are a few reasons why this may be happening:
- Faulty alternator: Modern vehicles require a lot of electrical power to operate all of their components. The alternator is responsible for supplying your vehicle with this electrical power by converting mechanical energy from the engine into electricity. If your alternator has failed or is close to failing, it won’t be able to produce enough electricity for your vehicle’s electrical components, including your headlights.
- Discharged battery: The battery supplies the initial surge of electricity needed to start the engine, however, once the engine has started, the alternator takes over and supplies power to electrical components. If your battery has lost its charge or isn’t holding a charge well, there may not be enough power available for your vehicle’s lights.
- Loose Bulbs: The easiest way for your headlights to go dim is if one or both of the bulbs isn’t screwed in tight enough. You can check this by looking at the backside of the headlight assembly and making sure the bulbs have been properly seated and screwed in. If they look loose, tighten them up and see if that fixes the issue.
- Bad Bulbs: If you’ve already checked them and they’re screwed down tight, then one or more of your bulbs may have simply burnt out. If you feel like you want to tackle this on your own, turn on your vehicle’s headlights, pop open the hood, and find where your headlight wires connect to the vehicle’s power source. Disconnect that wire from its power supply, and replace the bulbs. Reverse the order of repair and then turn on your lights. If you still have no light at all, then it’s a safe bet that there is another issue. However, use caution with electrical equipment, as there may be a short, and electricity can be dangerous.
- Malfunctioning dimmer switch: Your dimmer switch controls whether or not your headlights are on high beam or low beam. It also controls when you have your high beams activated versus low beams. If the dimmer switch is broken, you may experience a flickering between high and low beams or no lights at all.
- Faulty Wiring: A burned out or frayed wiring harness can also cause dim headlights since it can hinder the flow of electricity going to your headlights. This is usually caused by corrosion due to exposure to heat, water, or snow. If you notice that both your headlights have become dim at the same time, it’s a strong indication of faulty wiring.
- Corroded terminals and connectors: It is also possible that corroded terminals/connectors are causing dim headlight issues. You can clean them up and reconnect them if they have corrosion on them. If this doesn’t work, then there may be some other issues.
Tips to Deal with Dim Headlight Issues
Here are some helpful tips:
- Clean your headlight lenses: Regularly clean your headlights with the proper car shampoo and a soft sponge. If this doesn’t help, try rubbing them with toothpaste and then buff them with a headlight lens polishing compound.
- Clean up corroded connections: Over time, corrosion can build up on battery terminals and electrical connectors and cause problems like intermittent power loss in your car. You can use a wire brush and baking soda solution to clean off any corrosion.
Euro Plus Automotive Can Help
Euro Plus Automotive is one of the most trusted auto repair shops in Canoga Park. For over 30 years, we have provided all the services you receive at the dealership but at a fraction of the cost to Porsche vehicles and other German brands in Canoga Park, Woodland Hills, San Fernando Valley, and Los Angeles County, CA.
We only hire mechanics with years of experience to ensure quality and your satisfaction. Our team has the experience needed to diagnose any issues with your Porsche and to repair them as soon as possible. So next time you are looking for an auto repair center in Canoga Park, give us a call at 818-710-8244. We are happy to help you maintain your Porsche in top condition!