Hi,

I bought a used car and the dealership offered me free headlight cover replacement but I have to leave my car overnight for them to do the replacement.

Is it normal? I thought headlight cover replacement is quite fast... I'm not sure why they need to do it overnight...

Any ideas?

what car?

1. the glue need to set
2. too many cars need to do

I see. he told me the glue needed to leave overnight.

why replace the cover? cracked? calar?
third party headlamp usually will yellow very fast

usually yellow ald

polish it still better than replace. factory original is still the best

a bit blur and lot of scratches...

^this... might not end up 100% perfect but its can be done up pretty nicely

wow, replace whole cover is not cheap considering a quick polish & restore could result in same (provided the plastic is not already beyond saving)

must be making a nice margin from the sale =P

either this place is really honest, or they restore only but request over night so have lots of time to allocate your 15min job haha

what car?
some cars especially conti do sell lens cover, those are not expensive
for what japs, rarely can find replacement lens cover
most important is what material the replacement is, good or not, easy to become yellow? and the glue for water proofing is also very important. you dont want to have water or vapor in your headlamp

Polish and coating before and after, all in took about 3 hrs including for the coating to cure. Just sharing.

Done before CNY last year, til today still good.





This post has been edited by dares: May 27 2020, 05:01 PM

Mazda

wow ... impressive... 3M brand?

Dunno what brand the shop use lol

what was the damage?

RM80 for both sides.

i'm very confused after i read your post many times
as i know there are no "cover replacement"
it is either replace the whole headlight(minus the lighting assembly)
or
dissamble the headlamp....melt the glue and clean it from the inside thn glue it back thn put it back onto the car

I went for sanding, polish and coating by AK Coating for my car's yellowish headlamp. 2 years warranty.

It is possible to buy replacement lenses for some cars... Whether the quality will be as good as the OEM piece is another matter though!

mazda headlamps are notoriously expensive. i really suggest go for polish only. if opened and not seal correctly, water go in and create tons of problem.

Assuming the dealer 'honestly' will replace the lens(cover), then yes it will take some time to heat and soften the adhesive, carefully pry separate the lens from the back assembly, clean and polish, then reapply adhesive and reassemble.

However that said, most will not open the light unit unless something inside or the lens is wrong or needs an upgrade (eg. add aftermarket projector/DRL, or the reflector has spoilt), and instead mask the surroundings, then sand and polish on the car. A more detailed work will involve removing the light assembly, sand and polish then coat it with plastic compatible lacquer for a more even job.

first time ever i head of cover replacement *doubt*
if got scratch / yellow can be polished, although its not perfect but you wont notice unless you see it from 10cm away.

better make sure the cover is really replaced tho.

the workshop told me the glue is not dried yet... let's see how it's done later...