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during my cars MOT last may the examiner mentioned the fact that the headlights had started to yellow, something to do with the plastic material and the heat from the bulbs...has any one here had any similar experience with such matters?
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There's a thread here somewhere about polishing headlamp lenses. Do a search, you've nothing to lose but some old yellow headlamps. ;>)
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thanks for the reply bt, my headlamps are sealed units so polishing may be a problem, seen a pair on flea bay 30 notes a piece ...il keep looking..thanks
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Eh... sealed units but you polish the outside. Suggest you look at the link at least.
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hang on...the yellowing is on the inside of the sealed unit... not the outside, my question was if any one had a similar problem thats all
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Sorry Zoekeeper - really I am. If the yellowing is inside then a new light unit (or two) might be needed.
Rob
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As I commented on the other thread, the inner lens on my o/s Mondeo headlight has yellowed badly and it only just scraped through the MoT last year. I am going to have a go at cleaning it up tomorrow.
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you can buy new lenses for mk1 mondeos or you could,they arent worth trying to get right once they have tarnished
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you can buy new lenses for mk1 mondeos or you could they arent worth trying to get right once they have tarnished
You certainly can, bell boy. £33+VAT for a little square of plastic!
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i didnt pay that for new headlights
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ive an idea RR , would changing to more powerful headlight bulbs mask the yellowing effect for MOT purposes? how does the MOT headlight tester actually test the yellowing, any one know?
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ive an idea RR would changing to more powerful headlight bulbs mask the yellowing effect for MOT purposes? how does the MOT headlight tester actually test the yellowing any one know?
I think they go by the beam pattern when they check the alignment. That would show whether output is reduced.
I would think using a more powerful bulb might make the situation worse with a plastic lens. I got rid of most of the yellowing on mine today using toothpaste and an old brush.
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