S4 tailight colors....what gives? - Alfa Romeo Bulletin Board & Forums
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post #1 of 13 (permalink) Old 04-16-2019, 08:11 AM Thread Starter
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S4 tailight colors....what gives?

So this S4 I just bought, has two different colored tail lights......

The left side, the turn signal area is pure white, while the right side seems either faded or old, almost a yellowish color to it. Obviously one of them has been replaced.

I have also seen some of them, where the white area is actually totally clear, maybe those are for the non U.S. market.

Are their three versions of these tail lights?

Also, the AR emblem on the hood, is it an actual emblem, or just a sticker?
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Last edited by rettilieno; 04-16-2019 at 08:15 AM. Reason: correction
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post #2 of 13 (permalink) Old 04-16-2019, 09:12 AM
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one light is a replacement.
the ones with the bright white lines suit the car best, imo.
Maybe try find a good used (either type) to match them up

badge on trunk is a badge, not a sticker (should be at least!)

here a 10 year old advert with various S4 light types....can get confusing
https://www.alfabb.com/bb/forums/549383-post1.html
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post #3 of 13 (permalink) Old 04-16-2019, 11:31 AM
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I bought my '91 S4 new, and it had the original style lamps with the pure white lower band. I believe sometime in the '92 production run, they switched over to an all red lens (or at least, two different tones of red). Over time, the white band will yellow if left outdoors exposed to UV light.

I also think some of the European aftermarket lenses have an amber turn signal section, based on some of the photos I've seen. But I may be wrong on that detail...

My car now has a slight mismatch due to replacement of the driver side lamp about three years ago. See photo...

Rettilieno, if you want to match your tail lights up and go with the newer (and more available) all-red style, would you be willing to sell me your driver side lens assembly? It looks to be a nice bright white, which is what I would like to go back to if possible. Thanks regardless.
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post #4 of 13 (permalink) Old 04-16-2019, 07:13 PM
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Quote:
Originally Posted by rettilieno View Post
So this S4 I just bought, has two different colored tail lights......

The left side, the turn signal area is pure white, while the right side seems either faded or old, almost a yellowish color to it. Obviously one of them has been replaced.

I have also seen some of them, where the white area is actually totally clear, maybe those are for the non U.S. market.

Are their three versions of these tail lights?

Also, the AR emblem on the hood, is it an actual emblem, or just a sticker?
This is very common.

I hate the way it looks.

I bought a new replacement set from alfissimo.com

1992 Alfa Romeo Spider Veloce, 2017 Alfa Romeo Giulia, 2018 Volkswagen Tiguan SEL Premium
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post #5 of 13 (permalink) Old 04-16-2019, 07:16 PM
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https://www.alfabb.com/bb/forums/spi...ssimo-com.html

1992 Alfa Romeo Spider Veloce, 2017 Alfa Romeo Giulia, 2018 Volkswagen Tiguan SEL Premium
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post #6 of 13 (permalink) Old 04-17-2019, 08:56 AM
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My S4 had mis-matched and cracked tail light lenses when I bought it. I replaced both light units with a pair from Classic Alfa in the U.K. at a price of about $460 US. The shipping was reasonable and very fast.

The lighting in the photo does not show it well but the lenses are an identical match. I've noticed that some have a nearly white segment like alfaloco mentioned but that was not an issue for me.
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1991 S4 Spider "Gabriela", 2017 VW Golf R, 2018 VW GTI,

Previous obsessions; 2006 Mustang GT, 2006 BMW Z4M, 5 other Bimmers, Capri V6, Renault 5, Lotus Cortina, Sunbeam Alpine, Ducati Diana Mk 3, Norton Commando
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post #7 of 13 (permalink) Old 04-17-2019, 10:30 AM
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From what I understand, turn signals need to be amber in England and, perhaps, in other European countries as well.
As far as I know there is no standard for turn signals in N. America as I have seen white, red and amber.
Why we get white and not amber is beyond me.
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post #8 of 13 (permalink) Old 04-17-2019, 11:42 AM
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Quote:
Originally Posted by alfaloco View Post
Over time, the white band will yellow if left outdoors exposed to UV light.
You can usually improve that by sanding off the yellowed/hazed layer, polishing, and then recoating with something protective. UV cure headlight coatings work the best, but in a pinch I've read that clear spar urethane is a good option.
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post #9 of 13 (permalink) Old 04-17-2019, 12:23 PM
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Thanks Tom, I'll try a headlight sanding/cleaning kit.

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post #10 of 13 (permalink) Old 04-17-2019, 12:35 PM
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Lite Rite is the fastest & easiest stuff I've used for headlights. It's UV cure so you let it self level in your garage and then stick it in the sun to cure. No reason it wouldn't work on the taillights, I think.

https://www.ryderfleetproducts.com/s...ol-p-sat-lrc12

All you should need beyond that is some sandpaper to wet sand with.

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post #11 of 13 (permalink) Old 04-17-2019, 02:06 PM
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I believe the real issue in the mystery of the discoloration is that moisture is wicking into the tail light assembly, oxidizing the bulb seats in the housing and causing some rust. This i find erodes the white bands on the lense and leaves that brownish discoloration. Most times if you open and rinse the lens with some mild dish detergent and wipe, it may do the trick if the "white coating" is still in tact.
hope this helps
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post #12 of 13 (permalink) Old 04-17-2019, 07:53 PM Thread Starter
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I checked the Alfissimo site and they sell both the USA version, and the EURO version. They must be using the same pic for both because I can't tell them apart.

Personally, with the red car I prefer the white stripe.
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post #13 of 13 (permalink) Old 04-18-2019, 04:47 PM
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my theory has always been that acid fumes from the battery directly in front of the passenger side deteriorate it. On my Spider I am pretty sure both lights are original and there is a marked difference between the two. Of course, there are different versions out there too which can also be the cause.
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