2005 Subaru Chronic Headlamp Burnout

subaru

#1

Since the car was new, I have had to replace either the right or left hadlamp every 4 months or so. Anyone have any diagnoses or suggestions?


#2

First check the voltage. It should never be above 14V. generally around 13.5V when the engine is running.

Next check for mounting causing vibration or corroded/wet connections.

Are you using standard lamps or one of those extra bight lamps, which last a lot less time.

#3

Also, make sure you wipe the bulb with alcohol (the drug store kind, not beer) before installation. Even the slightest fingerprint on the bulb can cause rapid failure.


#4

We had to replace ours at 1.5 years/22k miles.

If your under 3yrs/36k the dealer replaces them for free under warranty.


#5

Is there any condensation in the headlight housing, this can lead to early failures. I pull the left headlight housing off my 2000 Blazer remove the bulbs out and use a hair dryer to dry out the inside.

Ed B.