VW Bora headlights

[DIYspanner]

The glass lenses have fogged quite a bit which seems a common problem on Boras.

Anyone got any tricks they've used to clean and clear the glass?

Already tried fine Wet n Dry followed up with glass polish but no real improvement.

 

[Burnerman]

Plastic lenses often get slightly opaque if a car wash is used frequently.....no problem with that but if they do interfere with the head lamp beam projection then it can be an MOT failure.
John

 

[Belle427]

I read somewhere brasso is good for this but i cant see it personally.
Maybe try a polish with a cutting action but i think when they are too far gone replacement is the only option.

 

[Mursal]

I heard toothpaste, but not tried that yet. Polishing compound available in the motor factors , I think. Have a wee look here, might be something?

http://bit.ly/16Lcge5

 

[Peter.N.]

I would think the old rubbing compound used on cellulose would do it - if you can still get it, otherwise some very fine wet & dry followed by an abrasive paste. I had this problem with some BMW lights, tried a few mild abrasives to no or little effect - then I sold it.

Peter

 

[Dave54]

Brasso works well to polish acrylic like Perspex. That's assuming the plastic used behaves similarly. At a guess anything mildly abrasive would do the trick. As always try it on a small non essential bit first if possible, and don't be tempted to use a polishing mop or whatever as it's very easy to overheat and melt.

 

[mfarrow]

There's some stuff about this on the web. Basically, modern light clusters have a tendancy to get foggy due to the heat of the beam. This is why the same thing doesn't happen to rear light clusters.

 

[DIYspanner]

I've used 2500 grit wet'n dry then 3000 grit wet'n dry and that's improved the lenses somewhat.

I think I can get the lenses even clearer with some fine cutting past and polish using a power buffer - there's only such much possible with elbow grease.