Typical Signs of a Defective Volkswagen Passat Hazard Flasher Switch
Your Volkswagen Passat hazard flasher switch is probably the least used switch in your entire lighting assembly, but this doesn't mean that it is already immune to failure. Any unusual activity like out-of-sync blinking or rapid blinking from your hazard flashers can point to a bad hazard flasher switch. Here are some common symptoms of a Volkswagen Passat hazard flasher switch that is in need of repair or replacement:
Intermittent flasher operation
A bad hazard flasher switch can cause a variety of odd displays from your Passat's hazard flashers. For instance, hazard flashers that blink extra fast or not at all are telltale signs of a defective hazard flasher switch. Sometimes, a faulty switch can also cause your hazard flashers to function perfectly at certain moments but fail to perform at other times. If left unfixed, this hazard flasher switch problem can result in the total failure of your hazard flashers, so it is best to replace either the hazard flasher relay or the entire hazard flasher switch as needed.
Burned-out bulbs on your hazard flashers can also indicate a problem with your car's hazard flasher switch. If you have been replacing your hazard flasher or turn signal light bulbs more often than usual, then you might want to examine your hazard flasher switch. A faulty switch can cause arcing on the sockets of your bulbs and burn out the bulbs' filaments pretty quickly. Before replacing your quickly burned-out bulbs, try doing a visual check on your hazard flasher switch first. If it has burned or sticky contacts, you should get a replacement hazard flasher switch as soon as possible.
Other troubleshooting tips
In most cases, a bad hazard flasher switch will also keep your turn signal switch from operating your turn signals. As a result, you might misdiagnose the problem as a result of a damaged turn signal switch.
Consider checking your fuses first before replacing your hazard flasher switch since the fuses usually fail more quickly than the switch. If your bulbs are good and your fuses are in perfect condition, then it's time for you to take a closer look at your hazard flasher switch.