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      08-22-2008, 10:40 PM   #1
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hood intake during car wash?

when you are going through a car wash
what happens to the water that goes into the hood intake?
is there an outlet for this water?
what about the fake intake? does that get filled up or does it leak into the engine bay?

might be a crazy question but it just crossed my mind today
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      08-22-2008, 10:45 PM   #2
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the same thing that happens when it rains...
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      08-22-2008, 10:46 PM   #3
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Goes into cylinder #1...

Hmm maybe I'm wrong, I used search and found this.

http://www.m3post.com/forums/showthr...ght=hood+drain
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      08-22-2008, 10:47 PM   #4
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the engine explodes.
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      08-22-2008, 11:42 PM   #5
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Quote:
Originally Posted by gadget View Post
the engine explodes.
Naw, engine revs to 8,900 rpm, then explodes
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      08-23-2008, 12:32 AM   #6
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Theres a vent that drains the water
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      08-23-2008, 01:51 AM   #7
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Quote:
Originally Posted by FifthStreetz View Post
Theres a vent that drains the water
das right
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      08-23-2008, 03:19 AM   #8
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do you really drive an M3 through a car wash?
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      08-23-2008, 05:44 AM   #9
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Quote:
Originally Posted by serven7 View Post
do you really drive an M3 through a car wash?
well..um. i don't technichally own an M3 yet
i owned an '88 M3
but i am in the process of buying a new one
found it with the exact options i want
will buy it at invoice
but i have to sell my 3 month old Audi A5 yet before i can buy the M3
but yeah when i get it i will take it through the car wash
we have a very good one close to our house that uses foam brushes
washed all my cars there and never got swirl marks or any damage
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      08-23-2008, 05:48 AM   #10
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you'll be fine. don't believe for a second that it wasn't accounted for in design. but besides that, i know from personal experience.
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      08-23-2008, 08:49 AM   #11
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Quote:
Originally Posted by FifthStreetz View Post
Theres a vent that drains the water
True that. There's a small hole in the bottom of the airbox. If you got a LOT of water in there it would simply drain out the airdamn vent in the front bumper and even then it wouldn't get close to the air filter.
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      08-23-2008, 08:58 AM   #12
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Quote:
Originally Posted by serven7 View Post
do you really drive an M3 through a car wash?
never
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      08-23-2008, 09:06 AM   #13
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Quote:
Originally Posted by serven7 View Post
do you really drive an M3 through a car wash?
There will be a time in the car's lifetime that it will go through the car wash (spray water type only). The first time before I dropped the car in HARMS for shipping back home and maybe in winter when it is too cold (after snow to clean off the salt). But most of the time it will be hand wash but still water will go in the vent.
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      08-23-2008, 12:26 PM   #14
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There is another thread that have the same dilemma. It has some diagrams, explaining where the water will drain out.
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      08-23-2008, 01:08 PM   #15
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even in the winter I'd never take my car through a mechanical or even hand wash.
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      08-23-2008, 01:53 PM   #16
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Quote:
Originally Posted by eatrach73 View Post
There is another thread that have the same dilemma. It has some diagrams, explaining where the water will drain out.
Can someone post a link to that thread please... I tried but I guess I suck at searching.

Does the fake vent drain also? or is it like driving around with a cup of water on your hood after some rain.
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      08-23-2008, 08:23 PM   #17
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Quote:
Originally Posted by ihyln View Post
even in the winter I'd never take my car through a mechanical or even hand wash.
Why? I used to run a high end car detail business, and everyone thinks that cloth car washes (brushless) still will hurt/scratch the paint. But, newsflash, any car that is driven more than once a month and without any dust on it will get tiny, beyond your sight hairline scratches. And if you own a SSII car you will never see the scratches. NEVER. But avoiding the car wash won't avoid these little hairline scratches, you want to avoid them, leave the car in the garage.

Sorry, after being in the business and people asking us how to avoid it or how they don't trust anyone or any mechanical car wash, I got tired of taking their "scratchless" car out into the sun, turned their head and eyes to the right angle and showed them the ever so light surface scratches. But it takes time and patience to see some of them. Nothing anyone will ever see. I am willing to bet any amount of money that with many color cars if you take two cars of the same color, start with them brand new and drive them both as a daily driver taking one to a VERY good soft cloth car wash and the other washing yourself with micro-fiber towels and stuff (both cars being washed the same amount of times) at the end of two years or so take them out into the sun, both after being washed, and you won't know the difference and won't even be able to pick it up in a HD picture.

Sorry to OP for going OT.....
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Last edited by e46e92love; 08-24-2008 at 02:33 AM.
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      08-23-2008, 09:13 PM   #18
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Quote:
Originally Posted by e46e92love View Post
Why? I used to run a high end car detail business, and everyone things that cloth car washes (brushless) ones still will hurt/scratch the paint. But, newsflash, any car that is driven more than once a month and without any dust on it will get tiny, beyond your site hairline scratches. And if you own a SSII car you will never see the scratches. NEVER. But avoiding teh car wash won't avoid this little hairline scratches, you want to avoid them, leave the car in the garage.

Sorry, after being in the business and people asking us how to avoid it or how they don't trust anyone or any mechanical car wash, I got tired of taking their "scratchless" car out into the sun, turned their head and eyes to the right angle and showed them the ever so light surface scratches. But it takes time and patience to see if some of them. Nothing anyone will ever see. I am willing to bet any amount of money that with many color cars if you take two cars of the same color, start with them brand new and drive them both as a daily driver taking one to a VERY good soft cloth car wash and the other washing yourself with micro-fiber towels and stuff (both cars being washed the same amount of times) at the end of two years or so take them out into the sun, both after being washed, and you won't know the difference and won't even be able to pick it up in a HD picture.

Sorry to OP for going OT.....
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      08-23-2008, 09:54 PM   #19
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http://www.m3post.com/forums/showthread.php?t=124541

And... for the record... I've taken my car through the car wash twice since taking delivery. I don't see what all the fuss is about. It's technically a "hand wash" car wash. A conveyor nudges the car along while several guys bathe it in soap with soft cloth gloves.
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      08-24-2008, 01:11 AM   #20
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car wash FTL!!!!!
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      08-24-2008, 04:51 AM   #21
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I take my car through a carwash occasionally, and I've yet to see any issue with the paint. IMO life is way too short to spend it being all paranoid about how my car is detailed.
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      08-24-2008, 11:51 AM   #22
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Quote:
Originally Posted by Kadarin View Post
I take my car through a carwash occasionally, and I've yet to see any issue with the paint. IMO life is way too short to spend it being all paranoid about how my car is detailed.
+1, my cars are smooth as glass because of proper claybar and spray wax use (non-silicon base) and not EXCESSIVE waxing. I use car washes because I would rather be doing a million other things than washing my car every week. I have learned a bunch of things back when Iw as detailing and my cars both look AND FEEL like glass with no visible scratches or marks (other than a few rocks chips in front after a few years) and I haven't hand washed one more than a few times in years. That being said, I do have an unbelievable car wash near me that if I didn't have I might be hand washing it myself.
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