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Met a dude who tends to hoard mostly Mercedes stuff and found out he had a few remaining body panels from a 928 he disassembled.
Well, I've been on a search for nearly 5 years to find an original paint S4 drivers fender in Gran Prix White.
Turns out this guy had the fender I needed and a back hatch (for an experiment I'll be conducting possibly before SITM 2016).
My existing fender was a poor respray, repair on what is an otherwise original paint 1990 S4.
This picture shows the newly acquired fender on the ground and the 928 in the air for the MM, OPG and WYAIT activities I'm undertaking.
Hopefully, you can see the "yellowish" hue on the fender on the car. I owned a detailing business as a young adult and alot of times these kind of details drive me crazy
Remarkably, even though the guy marked on the fender with a blue paint pen, the paint correction I applied was quite good to get the fender into a usable, without painting, state.
All in all, I'm stoked and given I've been pursuing this for many years, I can say goodbye soon to the poorly repaired and resprayed fender...
I washed the panel in an 8 to 1 ratio of water to Purple Power degreaser (it was pretty dirty).
I then proceeded to do as follows (Meguiar's, Mother's, Griot's, etc... all have good products)
1. Used a compounding pad on my buffer with a "Pre-Wax" Cleaner (2 passes in general and concentrated effort to remove MOST of the blue writing)
2. Retained the compounding pad and used a Liquid Compound Product to knock out most of the obvious scratches and slightly deeper imperfections. (2 passes)
3. Used 2000 grit sandpaper to finish off a few small dots of blue paint (did this procedure WET with a final detail spray product as the lubricant)
4. Switched to a polishing pad and used a Liquid Polishing Product to restore luster. (3-4 passes)
5. Applied two generous coats of carnauba wax by hand and machine polished (with a pad change)
The whole process took me a couple of hours. I tend to try to correct with the least abrasive product possible and rely more on elbow grease (i.e. used microfiber towels to hand buff panels between every pass).
Next time try some brake fluid to wipe off that blue paint.
I spent years looking for an original paint black rear bumper cover in excellent shape. I fully understand how you feel. A strong sense of accomplishment and reward for the patient yet determined struggle.
I washed the panel in an 8 to 1 ratio of water to Purple Power degreaser (it was pretty dirty).
I then proceeded to do as follows (Meguiar's, Mother's, Griot's, etc... all have good products)
1. Used a compounding pad on my buffer with a "Pre-Wax" Cleaner (2 passes in general and concentrated effort to remove MOST of the blue writing)
2. Retained the compounding pad and used a Liquid Compound Product to knock out most of the obvious scratches and slightly deeper imperfections. (2 passes)
3. Used 2000 grit sandpaper to finish off a few small dots of blue paint (did this procedure WET with a final detail spray product as the lubricant)
4. Switched to a polishing pad and used a Liquid Polishing Product to restore luster. (3-4 passes)
5. Applied two generous coats of carnauba wax by hand and machine polished (with a pad change)
The whole process took me a couple of hours. I tend to try to correct with the least abrasive product possible and rely more on elbow grease (i.e. used microfiber towels to hand buff panels between every pass).