BMW 525i Tail Light Assembly
Common Culprits behind Faulty BMW 525i Tail Light Assemblies
Your BMW 525i's tail lights may not be as prominent as your headlights, but they are still essential in your lighting system. You see, the tail light assembly makes it possible for other drivers to recognize your auto. This allows nearby drivers to adjust their distances to avoid a collision. To provide a longer service life, the tail light assembly is engineered with optimum durability. But despite its durability, your tail light assembly is still prone to damage and this may compromise your safety. If you think that the tail lights are no longer serving their function, then better perform some troubleshooting. Check out the following reasons behind tail light defects.
One side fails to work
If you inspect the tail light assembly and find only one of the tail lights to be defective, then the primary culprit to look for is a burned out bulb. With constant use, the bulbs of the tail lights can wear out easily. To check for burnt out bulbs, simply remove the parts and examine if the filaments are broken. Finding one means that you have to buy a tail light replacement.
Multiple tail light failure
A blown fuse causes both of your tail lights to fail at once. Unlike burnt out bulbs that are easily addressed by replacing the tail lights, detecting a blown fuse may require more work. You see, you will need to look for the location of the fuse box. Luckily, the owner's manual should indicate where the fuse box is placed. Simply look for a thin metal strip inside the fuse to diagnose a fuse defect. A good tail light assembly should have a well-conditioned metal strip in order for it to work.
Defective tail lights due to faulty wiring
Once you've checked the bulbs, filaments, and fuses for defects but you find them in good condition, then the reason for the tail light failure is a faulty wiring. When the wires get damaged, loose, or corroded, they will impede the flow of electric current. If you suspect this issue, simply check the wiring and connections if they are secured tightly and are not corroded.