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Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Anyone done it? What did you use?
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Are you talking about the four black plastic vent inserts?

I've had good success cleaning & reconditioning other automotive plastic parts (Porsche and others) using the 3M Plastic Cleaner product, but haven't tried it specifically on the vent inserts.

Which brings up a related question. I have two sets of black plastic inserts, the ones installed in my 941 (which is based on a 1980 931) and a set I recovered from a 1981 931. The earlier ones are sort of smooth and glossy, while the later ones have more of a satin finish with kind of a texture to them. Any ideas on that? I've been wondering if both sets were OEM, was there a specific difference between series I and series II cars, were there ever aftermarket units available, etc. Any ideas on that?
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erstwhile owner of just about every 924 variant ever made

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Mine are the latter, not at all glossy. In looking at them closely, I concluded they weren't smooth because they were shedding material (a fine black dust).

What I was thinking was trying to sand them smooth and then painting them with something. But, I dunno.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

tuurbo · Posted: Fri Jul 11, 2008 7:06 am Post subject:

Sheesh talk about anal. Mine are on my passenger seat.

Anyway I use the same stuff I use on the rear spoiler. Seems to work.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

Smoothie · Posted: Fri Jul 11, 2008 11:34 am Post subject:

If I'm remembering correctly, I just sprayed mine with a flat black enamel.
-Shows how much thought went into it...only two years ago and I can barely remember.
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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

emoore924 · Joined: 13 Apr 2004 Posts: 2822

No Brainer.

Lexol Vinylex

Same stuff used to remove wax residue from all those black parts (spoiler, mirror trim, nose vents, bumper shrouds, etc.)

Does an INCREDIBLE job.

Paul · Posted: Thu Aug 14, 2008 9:04 am Post subject:

Vinylex is great!!!!
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.