Left the car with BMW service dept. for 2 weeks because of this....
http://www.f30post.com/forums/showth...=699664&page=3
Went to pick the car up and I noticed some stains on the hood and roof.. the car was outside for 2 weeks in the hot sun. Here's my math...
Acidic bird poop + hot sun - indoor car storage = etched in bird poop stains.
They re-washed and buffed but if i look on an angle up close I can still see small things that resemble watermarks on the hood. How do I get rid of it...
see pic