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F10 / F11 (2011 - Current)
The new chapter in the highly successful story of the BMW 5 Series Sedan (F10) and wagon (F11)

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  #1  
Old 11-13-2012, 07:42 AM
milepig milepig is offline
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Damage to hood due to leaky pipe

I need advice. I park my 535 in my owned place in my condo garage. The garage ceiling is covered with drain pipes, one of which is right over the front of my car (you can see where this is going.)

I got home from a trip last week to find that the pipe had been dripping some substance onto the hood while I was gone.

There was chatter on the the building email list about plumbing problems, backed up drains in people's kichens, etc. and that "some water' had found it's way into the garage." Given the look of the mark on my car, my best guess is that what dripped on the car included drano.

Some of it splattered onto the windshield, and I was able to get it off with some window cleaner, but the stuff on the hood won't budge using normal mild cleaning substances. It "looks" like it's etched in, but when I rub my fingers over it you can tell it's raised making me think that the substance might actually be caked onto the hood rather than etched into it. Before I jump to conclusions I'm willing to try a couple more things in hope it will come off, and am looking for advice.

I'm attaching a picture of the spot, and fear I'm looking at a total hood repaint (on my 4 month old car.) From previous experience, I know the board will worm their way out of any responsibility, so this will likely wind up being my problem.
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  #2  
Old 11-13-2012, 08:07 AM
jjsC6 jjsC6 is offline
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Take pictures and document it with the complex before you do anything. Also before doing anything take it to both a dealer and a professional detailer and get a written estimate to present to the complex.

I personally would have no problem trying some various compounds on it with an electric buffer as I have a fair amount of experience. But I would not touch it until you do the above so that they can't blame any of the damage on your efforts to get it our yourself. The first thing I would try is a clay bar. Then I always work my way up starting with mild polishes and progressively up to something a little more aggressive. At some point you have to know you limitations and let the pros work on it.

Good luck.
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  #3  
Old 11-13-2012, 08:16 AM
watchurself watchurself is offline
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That sux - I hope they make good on your hood cause it seems like no fault on your part IMO!!!
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  #4  
Old 11-13-2012, 08:21 AM
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Needsdecaf Needsdecaf is offline
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THis will be covered by your condo's insurance policy. Make sure that the building manager or management agency is made aware. Take pictures of the pipe and the car parked underneath. Don't try to remove it yourself before contacting them.

As others have said, get an estimate and present it to them. Don't have them try to do any work, have them cut you the check.
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  #5  
Old 11-13-2012, 08:25 AM
Kar Don Kar Don is offline
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i would definitely clay the hood. Blue clay magic available at autozone. That should do the trick. I personally would polish the hood with buffer and apply a sealant after.
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  #6  
Old 11-13-2012, 08:30 AM
milepig milepig is offline
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Thanks for the input so far. I've already contacted the building management company and attached pictures. Waiting a response.
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  #7  
Old 11-13-2012, 08:37 AM
FastMarkA FastMarkA is offline
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In general, parking under pipes is bad, bad, bad. Of course, it sounds like you have no choice in the matter since you own the spot.

Agree w/ everybody else and the path you have started: Building management > estimate > check > you manage the repair.
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  #8  
Old 11-13-2012, 08:48 AM
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Agree with the above on documenting.

If you want to try a home remedy less severe than buffing or claying try a little goof off on the edge of the streak.

It has taken all sorts of stuff off my cars and won't harm the paint.
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  #9  
Old 11-13-2012, 09:30 AM
milepig milepig is offline
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Quote:
Originally Posted by laser View Post
Agree with the above on documenting.

If you want to try a home remedy less severe than buffing or claying try a little goof off on the edge of the streak.

It has taken all sorts of stuff off my cars and won't harm the paint.
Thanks, I'll put Goof Off on my shopping list along with that tarp I plan to buy on the way home from work tonight.

Last edited by milepig; 11-13-2012 at 12:39 PM. Reason: fat fingers
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  #10  
Old 11-13-2012, 11:22 AM
The X Men The X Men is offline
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If its drano, that stuff usually have a very pH, try some white Vinegar or something with a low pH.
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  #11  
Old 11-13-2012, 11:34 AM
jjsC6 jjsC6 is offline
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Quote:
Originally Posted by The X Men View Post
If its drano, that stuff usually have a very pH, try some white Vinegar or something with a low pH.
Good advice that I didn't think of earlier. I have had good success using vinegar on waters spots that would not come out easily.
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  #12  
Old 11-13-2012, 01:31 PM
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Stealth.Pilot Stealth.Pilot is offline
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This may help. A detailer may also be able to remove it by polishing the paint.

http://www.3dproducts.com/Eraser-Wat...16-Oz-Gel.html
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  #13  
Old 11-13-2012, 06:14 PM
milepig milepig is offline
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You guys rock. I tried vinegar first, and it took half an hour, but it worked. I'll still have a chat with my detail guy, but so far so good.
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Old 11-13-2012, 06:42 PM
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Love the old home remedies! Glad you found the key.
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  #15  
Old 11-14-2012, 05:50 AM
The X Men The X Men is offline
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Quote:
Originally Posted by milepig View Post
You guys rock. I tried vinegar first, and it took half an hour, but it worked. I'll still have a chat with my detail guy, but so far so good.

Make sure you rinse the vinegar off good, its a mild acid. Glad everything work out for you.
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  #16  
Old 11-14-2012, 07:20 AM
milepig milepig is offline
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We rinsed it well, and I'm making an apointment with my detail guy (car needs it anyway) to have him look it over and to specially check the area.

New question. I bought a big tarp so I can begin to cover the car when parked. Is it OK to cover the car immediately after parking, or will the engine not cool down properly. The only effective way to cover is the entire hood area, including the front air intakes. I would rather avoid making a separate trip down the elevator just to cover the baby.
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  #17  
Old 11-14-2012, 07:55 AM
jjsC6 jjsC6 is offline
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I'd be concerned with covering the car as well, although I understand your reasons. I've noticed that the top of my hood stays pretty hot for a while after turning the car off. Also, be prepared for the tarp leaving marks on the finish of the car. Not likely to do any real damage, but might not look so good where you pull the tarp on and off.
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  #18  
Old 11-14-2012, 08:18 AM
The X Men The X Men is offline
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I agree, these BMW turbo engines run very hot, I would not cover up the vents when it is hot.
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  #19  
Old 11-14-2012, 08:46 AM
jgscott987 jgscott987 is offline
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Instead of trying to cover your car, you might think instead about putting up some kind of 'ceiling' between the pipe and your car. Could be a plastic tarp, sheet of plywood, sheet of corrugated plastic etc. Set it up so that any leak from the pipe would run off away from your car.
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  #20  
Old 11-14-2012, 08:52 AM
watchurself watchurself is offline
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OR have the building mgmt fix the leak issue -so you dont have to go thru with this again!!!

JMHO

Quote:
Originally Posted by jgscott987 View Post
Instead of trying to cover your car, you might think instead about putting up some kind of 'ceiling' between the pipe and your car. Could be a plastic tarp, sheet of plywood, sheet of corrugated plastic etc. Set it up so that any leak from the pipe would run off away from your car.
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  #21  
Old 11-14-2012, 08:53 AM
milepig milepig is offline
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Quote:
Originally Posted by jgscott987 View Post
Instead of trying to cover your car, you might think instead about putting up some kind of 'ceiling' between the pipe and your car. Could be a plastic tarp, sheet of plywood, sheet of corrugated plastic etc. Set it up so that any leak from the pipe would run off away from your car.
Yeah - but that would be a non-starter with the building - not that they've ever done anything to FIX the situation...
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  #22  
Old 11-14-2012, 01:11 PM
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The culprit doesn't have necessarily to be a leaky pipe... if (rain)water somehow finds its way through a concrete garage ceiling via tiny cracks or cavities and ends up dripping for several hours on your car, then the result will look exactly like the OP's picture.

This happened to me once on the hood of my previous BMW. After coming home, I was able to quickly dissolve those calcium/lime-type residues with a few drops of... pure lemon juice! Yep, the stuff you'd use in the kitchen on your meals which often comes in those small plastic bottles. Squeezing a slice of fresh lemon should work exactly as well. As it's a mild acid too, its effect is probably very similar to vinegar.
Of course I rinsed the lemon juice well and couldn't spot any traces or residues later.
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  #23  
Old 11-14-2012, 01:20 PM
jgscott987 jgscott987 is offline
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Quote:
Originally Posted by milepig View Post
Yeah - but that would be a non-starter with the building - not that they've ever done anything to FIX the situation...
If it were my car/building, I'd just go in there on a Saturday afternoon and put something up. I don't know the details of the location, but my guess is it could be done in an hour for $20 or less.
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