2012 BMW M3 Coupe Jerez Black: My first attempt at paint correction

SamS

New member
First off, special thanks to forum members MuttGrunt and Envious Eric for providing valuable guidance and insight into the paint correction process.



I picked up my 2012 M3 via European Delivery in October, and redelivery via BMW's Performance Center Delivery in December. Throughout every step, I did my very best to ensure the paint on the car would remain pristine. Despite my best efforts, my car picked up swirling and other light defects somewhere between pick up in Munich, and re-delivery in Spartanburg, SC. Once I got home, I made sure to follow the proper two bucket procedure, etc. Since the car is not my daily, I'm able to keep the engine bay, interior, and wheels in pretty good shape. But, I knew it was time to tackle the minor scratches that made their way into my paint.



I basically had two days to do the job. I had previously ordered a Porter Cable 7424XP, pads and compound, and had done enough reading to know what I was getting into. My goal was only to get the paint back to something nice to look at. Interior is great (car only has 2200 miles), and I had removed the wheels and done a deep clean on them last month. I'll share some pictures from a sunny day a few months ago, when I first began to understand the extent of my problem.



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Besides the hood, the worst part was the trunk lid, ughh:



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So, I spent a couple of hours washing with Chemical Guys Citrus Wash, and drying. I had clayed a few weeks ago, there was not much embedded debris on the paint. I got to taping, armed with leftover 3M Scotch tape from my road trip back from PDC.



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Tape and other prep-work took a long time! I decided to call it a day to get a fresh start with correction the following day.



My plan of attack was as follows:

  • Menzerna Power Finish on White LC pad
  • wipe down with micro fiber towel
  • Menzerna SF4000 (this is called 106??) on Black LC pad
  • wipe down with micro fiber towel
  • IPA wipe down (ended up with 60/40 alcohol to water mix)
  • Menzerna Power Lock Sealant on Blue LC pad
  • wipe down with micro fiber towel
  • Pete's 53' carnuba wax
  • wipe down with micro fiber towel



This was a lot more work than I was expecting! It took around 3-4 hours just for the first step with Power Finish. About 3/4 of the way through, I switched to a fresh White pad, as I could tell I was getting too much specks of compound, and not much cut. On a few problem areas, I had to switch to an Orange pad with Power Finish. If I couldn't get the small marks to disappear with the Orange, I just left them. Not comfortable enough to go any more aggressive on my first attempt.



After the White (and occasional Orange), I could tell I got 90-95% of all scratches. Yes, I could still spot a few per panel, if I looked very close with the halogen work lamps. And, I knew I only had about 8 hours to do this correction, so best not to drive myself batty or into serious fatigue. This stuff can kill your back! :D I moved on to the SF4000 with black, which I couldn't honestly tell gave me a lot of improvement. Although I realize I needed to go with this finer pad/compound before LSP. I proceeded to remove the painter's tape. The IPA wipe down was a total cinch. I moved on to the Power Lock with Blue pad. This too was easy, as Power Lock goes on with no problem. I just used a setting of 2 on the PC, to get coverage on the paint. No pressure. Finally, I applied the Pete's 53'. This is my first "boutique" wax in a long long time. It seemed to apply OK, and smelled nice. My only complaint was working with the occasional "crumbles". I guess this is common with carnubas? I had to make sure not to apply too much, as it was tougher to wipe out a thicker layer.



A couple of observations after it was all done:

  • The sealant + wax left the most slippery surface! Incredible. Of course it was not like these even picking up at BMW Welt.
  • The shadowline trim looks absolutely amazing now that it is virtually free of scratches.
  • The carbon fiber roof really pops with a coat of wax. It didn't have many defects on it before I started, but it sure stands out, now.
  • You could spend all day, just on the hood. I don't know if it's because it's a bigger area, or if you can catch the scratches in the light better. I got 95% of the defects, but damn if another won't crop up if a bug lands on my hood wrong.
  • For the few marks where even an Orange + Power Finish wouldn't take out... I could actually see the scratches were actually tiny "dents" in the clear coat, when you view at a certain angle. This is hard to describe. But I know if I wanted to get these out, I'd have to go pretty deep, based on what I see. These are all minor marks, that you can only spot if you know exactly where to look.
  • I briefly mentioned the interior - I do give this serious attention! It keep it spotless (vacuum carpets after every trip), and gave the leather lots of love with Leather Master soft cleaner and protectant.
  • I also detailed much of the undercarriage last month when I had the tires off. Suspension components, wheel wells, etc. got a good dose of P21S TAW and brush/wipe down.
  • To really make the most of the paint correction process, I really think you needed a dedicated work space, with serious lighting, and maybe even a lift. Obviously, I did mine in an open garage, with just halogen work lamps. This means I was competing against bugs, dust, moving the lights, tripping over cords, etc. I am sure I could have been more effective in a more controlled environment.



Sorry I don't have any sun pics. The weekend weather in Dallas was all clouds and rain, until late today. Even when the sun came out, it would have mean driving through some puddles to get any sun shots.



The first pic is a 50/50 after a single pass with the Power Finish + White pad. The rest of the "after" pics don't really tell you much, I know. But understand this... what you see on the hood are actual reflections from my garage ceiling. The attic door, imperfections in the ceiling drywall, etc. I thought something was wrong with my lens when I originally took the pictures! Nope, it really is that shiny :D



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So, final thoughts.... this was about as difficult as I expected. I certainly wouldn't want to try to do this entire process in a single day. I would have actually rather spread out the compounding over two entire days, but hey, there is life to live after all. I can see why this would have cost ~$1000 for a pro to do. It is a lot of physical work, and takes a lot of patience. I'm sure I spent at least $500 just to get the supplies to allow me to give this a shot. The good thing is, I can tackle any minor problems that crop up in the future, myself.



Final question for the pros: Now that I've got a pristine car, how to maintain? Of course I do the two-bucket wash method, and car is always garaged, and would never be exposed to the elements. After a half-dozen washes, will I need another coat of wax, or sealant? Or, clay bar, IPA wipe-down and both sealant/wax?



Thanks for reading, I'll try to get some sun pics one day.
 
nice work!



maintenance wise - i would wash, ipa wipedown, then apply 2 coats of opti-coat. this is a permenant resin coating that will last the life of the car. it beads like no other, keeps the car cleaner, and i've heard it keeps the swirls at bay since its tough and not much dirt sticks to the car. something to think about in the future



nice job, again! :wow:
 
Thanks!



I appreciate the suggestion of Opti-coat. What are the drawbacks? I read it's just like another layer of clear coat. So, in reality (in the future), I'd probably do an IPA wipedown, then another run with Menzerna SF4000 + Black pad, or whatever is needed at the time. Won't the Opti-coat pick up scratches, too? I guess I need to live with this detail for a few months and just see how well I avoid any marks in the paint. Like I said, it's not my daily driver, and I'm ultra-careful with my hand washing. Theoretically (!) it should stay this good for a long time.
 
Car looks really good in the afters! Roads are dry now, shouldn't be a problem getting some sun shots-though I'd wait until 30 minutes before sunset to take pics, that's usually the best light to show off your work.



I 2nd the Opti-Coat suggestion, with proper washing it will minimize future scratching and swirls. I'd also switch to ONR for your regular washes, it will save you a ton of time and when it finally gets hot here, you will not have to rush to get the sides dry before they spot like you would with conventional washing.



Weekend weather has been pretty bad the last few weeks, hasn't it? Storms seem to be waiting for the end of the week to mess everything up.
 
Thank you Scott. I've watched videos about ONR, but it is still hard to wrap my brain around such a concept vs. the traditional method I've used all these years. Yes, black car is tough to wash in the summer! I've been known to start at 7am, though ;)



If I can't get to sun shots tonight, I'll try tomorrow. I actually wrote my original post yesterday so the timeline may not have made sense. Ya, the rain sucks, but I like the cool weather :D
 
Hi again. I was a bit rushed tonight, but wanted to snap a few pics before the sun went down. Keep in mind this is two full days after correction, the car is a bit dusty and I only saw it in "real" sunlight today. Wish I could have touched it up a bit more! But, you do get to see how I was able to remove the fine scratches. Loving it!



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Outstanding! Glad things went well once again Sam and I love your post. Great job and I look forward to staying in touch.
 
Great job Sam, especially for your first one! Marc and Eric are good guys and are definitely going to point you in the right direction. Well written post and photos look very good as well. Enjoy that super low miles M3, its gorgeous!
 
Thanks guys! I learn a lot from this place. I've (obviously) not posted much, but lurk all the time, and love learning from all the pros here.
 
Simply awesome for your first correction......especially for it being black!! How much time did you spend from start to finish? Keep up the great work!
 
DieselMDX said:
wow awesome car and paint choice!



Appreciate it! Yes, Jerez is pretty incredible. I ordered the car, so I had my pick of the colors. I definitely appreciate the choice even more, now :-)



Underdawg736GTC said:
Simply awesome for your first correction......especially for it being black!! How much time did you spend from start to finish? Keep up the great work!



Thanks!



The first day I did wash and prep, about 5 hours. The second day was pure compounding/polishing, and that took a solid 8 hours. I was really hustling for all 8 hours because I had fixed amount of time.
 
Very nice work, especially for your first time. Looks like you got the hang of it, now it's all about trying new products and seeing what works best for you.
 
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