Had a similar issue with a scratch on the rear bumper cover on my 95 SL320.
It appears that the clear coat makes it appear darker. I wiped off the bad
touch up job with thinner right away and used only the basic grey metallic
touch up paint. It looked like a better match. After a few months you can't
tell it has been touched up.
I had the same problem, and it turned out that I did not shake the
tube well enough to properly suspend the metallic particles in the
paint. When you keep shaking it for several minutes, the colour
lightens, and it should match the vehicles original paint when ready.
There are two anthracite grey metallic paint
colors. The old one from 1955 to 1998 has a
touch of green to it. The newer grey paint
has a touch of blue in it.
Perhaps you bought the old color grey paint?
Take the paint, and your VIN number, back to the
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