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D2 - Body and Exterior Bumpers, bonnets, glass, trims - Everything outside

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  #1  
Old 24th June 2010, 05:25 PM
alefustec
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Default chrome trim has gone milky?

I have just had the S8 3 weeks now and tidying up trim etc - one thing is bugging me though, the chrome trim has white spots/milky look to it. Tried polishing and some of the marks faded but didn't really make much difference. Looked around the forum and seen that spraying them black is an option, but the car is silver and think it would ruin the look (plus want to keep it as original as possible).

Any ideas of how to bring them back to thier former glory? (obvioulsy buying all new trim sounds like it would be a VERY expensive option)?
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Old 24th June 2010, 10:44 PM
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Same problem here. I didn't see any write up how to change them. Heard changing those door chrome trims require complete doors disassembly from the inside, which is nightmare.

I wonder if this milky stuff is just a buildup on top of chrome (which should be washable or removable mechanically) or is it permanent damage to chrome, i.e. we actually see white plastic basement under the chrome?
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Old 25th June 2010, 05:27 AM
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What you have is polished aluminium that has been anodised and covered with a lacquer. The milkyness is moisture getting into or under the lacquer. The only permanent method is to change or paint the trim.
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2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
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Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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Old 25th June 2010, 09:01 PM
alefustec
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Quote:
Originally Posted by Conan_the_Librarian View Post
What you have is polished aluminium that has been anodised and covered with a lacquer. The milkyness is moisture getting into or under the lacquer. The only permanent method is to change or paint the trim.
thanks, that saved me many fruitless hours polishing to no avail!!

I wonder if i can get them chromed (not sure if its possible with aluminium?), but it sounds like removing them from the car is 'fun'.........hmmm could be a 'live with it' or back to the paint option.....i'm guessing this is a common problem?
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Old 26th June 2010, 05:47 AM
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it is very common on cars that have spent a lot of time outdoors. Darrenjoe90 has done a thread on his attempts to cure the problem.
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Conan (the Librarian)

Watch it if you dare

Currently,
2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
2005 C5 Allroad 2.5TDi FE - Grey - Workhorse.
2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter.

Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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  #6  
Old 20th August 2011, 07:42 PM
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Nollywood Nollywood is offline
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The only way to get the trims shiny once more, is to remove the protective lacquer, then polish the raw aluminium to a bright finish.

The problem is once the lacquer's removed, you'll have to keep on top of your polishing. It may however be possible to purchase clear vinyl, and cover the fresh aluminium, protecting it from the elements. (Audi use it on lower areas of the rear wheel arches on certain models vulnerable to stone / grit chipping).
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Old 20th August 2011, 09:23 PM
SilverS8 SilverS8 is offline
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Hi.

Got the same issue on mine 2... I did the metall polish and it looks great for a while then its back to the polish again..

Since black wont match a silver car i'm woundering about Gun Metall grey.. Maybe someone with good skills could do Photoshop of Silver A8/S8 from the side with gun metall grey trims?

Hm...Would 3M Carbon on all that trim be to much F&F ?
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  #8  
Old 21st August 2011, 07:04 PM
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I'm just wondering if a rub on 'gun blue' from your local armoury would work, just a thought...
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  #9  
Old 22nd August 2011, 08:02 AM
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Quote:
Originally Posted by Nollywood View Post
The only way to get the trims shiny once more, is to remove the protective lacquer, then polish the raw aluminium to a bright finish.

The problem is once the lacquer's removed, you'll have to keep on top of your polishing. It may however be possible to purchase clear vinyl, and cover the fresh aluminium, protecting it from the elements. (Audi use it on lower areas of the rear wheel arches on certain models vulnerable to stone / grit chipping).
Varnish it, International Yacht Varnish or similar
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Old 22nd August 2011, 08:11 AM
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Quote:
Originally Posted by Dezzy View Post
Varnish it, International Yacht Varnish or similar
You'll be putting stripey boarding on the bonnet and boot next!!
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