So I'm not sure whether it was pre-existing (doubtful, I would have noticed it) or whether they occurred from heating the headlight to install the Rockblocker on them but my driver's side headlight has a series of small stress cracks in it now. I could actually see them through the film, which I removed the other day because I drove through a rainstorm a few weeks ago and the lack of light output was VERY noticeable. I'll try to get some pics up at lunch today to give you an idea.

Question: Have any of you guys ever repaired stress cracks in a headlight that you can feel with your fingers? It doesn't look like the cracks go all the way through the light. I've refinished headlights by wetsanding / Plastic-X / buffing but the cracks weren't quite as deep as these. Any recommendations on grits I should use? Thanks

 

Here we go, here are some crappy camera phone pics I took.

 

Hmmm?

Are you sure those are cracks (as opposed to, say, left over adhesive)?

If they are, I say don't even fool with 'em. Straight to the dealer for replacement.

Any other mods you might be concerned with regards a possible/probable warranty repair?

I'll double check mine and post back later - same car, same environment, w/Blue Batmobile Overlays.

 

I think the hairdryer caused the stress cracks. If you did this in your garage where the headlight is say, 75f ... going all the way up to 130 / 140f in an instant would probably be the culprit.

I just took off my headlight tint and what do you know, stress cracks

 

Yeah they're definitely cracks, I can feel them with my finger nail. No other mods to the car other than some LEDs in the license plate lights...

 

Nobody's tried to fix cracks like this before?

 

hmmm wetsanding might make them less noticeable


ive baked over 20+ sets of headlights in the over for clearing/blacking... never seen that before! even seen a set thats been opened up 2 or 3 times

 

I'm interested as well.

@WRX, I have about 6x more stress cracks than you do.

 

has anyone ever done anything about the stress cracks? I took mine off for my yearly inspection...and bam...stress cracks galore