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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 08-21-2009, 12:27 PM
racingxtsy racingxtsy is offline
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Location: Toronto
 
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Arrow Z4: Unclog the drains on the soft-top?

We just had tons of rain in Toronto, ON and I am hearing the sound of water when driving. I quickly checked the luggage compartment / trunk and there is no water in there.

I found these instructions to unclog the drains on the soft-top: http://www.zpost.com/forums/showthread.php?t=63033

It sounds like I am on a boat

Does this sound like I need to unclog the drains on the soft-top to let water escape, or is this normal after it rains a lot?

Any tips or advice, etc. would be greatly appreciated. Thanks!
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  #2  
Old 08-21-2009, 01:59 PM
12thBMW 12thBMW is offline
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Don't Need to Remove Splash Guard

The last poster on the Z-Post Thread said that you can see and reach the drains through a rectangular hole on the splash guard. Is that true ? (my Z4's in the shop, so I can't check right now). If it is, racingxtsy when you get under there, takes some clear, well-lit pictures of it and post them for the rest of us. Thanks....
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  #3  
Old 08-21-2009, 02:59 PM
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shipkiller shipkiller is offline
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You can see the right side drain holes but NOT the left side. The left side is hidden under the hydraulic motor.

Here is a couple of pics of the holes with the top out of the car..

Right Side:




Left Side:
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Old 08-21-2009, 08:23 PM
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jsc jsc is offline
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Quote:
Originally Posted by 12thBMW View Post
The last poster on the Z-Post Thread said that you can see and reach the drains through a rectangular hole on the splash guard. Is that true ? (my Z4's in the shop, so I can't check right now). If it is, racingxtsy when you get under there, takes some clear, well-lit pictures of it and post them for the rest of us. Thanks....
Yes, you can see the drains from underneath, the outlet is the rubber "star' like object you can see if you look through the rectangular hole in the splash guard at the right angle, in front of the rear wheel. A soft pipe cleaner or similar can be fed in from underneath, if you bend it the right way.
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  #5  
Old 08-22-2009, 01:44 PM
racingxtsy racingxtsy is offline
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Yes, you don't have to take any plastic covers off to remove the drain plug underneath. This should save people from breaking and replacing the rivets.

Just jack the car up using a low profile jack (mine barely made it) and use jack stands (1) to secure the vehicle.

Crawl underneath and look for a rectangular shaped cut-out in the plastic, right by the rear wheel.

At the right angle you should see a black round drain plug in the top left hand corner. You can see a picture of it in the link I posted above. Pull the drain plug straight out. Some leaves and crap should come out.

If you have a pipe cleaner you can fish it up there to free up any debris, and allow for the proper flow of water. I didn't have any pipe cleaners, so I used a nice thin, strong branch from my mulberry tree!

If you can use compressed air (or vacuum cleaner in reverse mode) it would work best, just follow the directions in the post above, but don't bother removing the plastics - it's a waste of time.

In the end, I think I overreacted and the "water noise" I heard was likely the gas in the gas tank.

Thanks for your helpful responses.

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  #6  
Old 08-22-2009, 02:06 PM
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shipkiller shipkiller is offline
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Here is a link for a How-To.

http://www.zpost.com/forums/showthread.php?t=63033
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams
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Old 08-22-2009, 10:43 PM
cruisingdog cruisingdog is offline
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Has anyone tried a can of 'air' like the ones used for cleaning computer keyboards and the like. It might be the easy solution ! Either that or a pressure hose to force the debris down.

I have a question about the star thingy. Why is it there (I'm guessing to stop the crap from flowing upward from the road whilst driving) . There must be a better solution. Maybe an open hole (open rubber tubing) with a splash guard over it to stop the upward thrust of road water from the wheels.
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Last edited by cruisingdog; 08-22-2009 at 10:54 PM.
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  #8  
Old 08-23-2009, 12:28 PM
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shipkiller shipkiller is offline
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Quote:
Originally Posted by cruisingdog View Post
Has anyone tried a can of 'air' like the ones used for cleaning computer keyboards and the like. It might be the easy solution ! Either that or a pressure hose to force the debris down.

I have a question about the star thingy. Why is it there (I'm guessing to stop the crap from flowing upward from the road whilst driving) . There must be a better solution. Maybe an open hole (open rubber tubing) with a splash guard over it to stop the upward thrust of road water from the wheels.

Canned Air is not powerful enough, at least to me. I used my air compressor..along with flushing the debris out with water.
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams
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  #9  
Old 01-09-2012, 12:46 PM
BZN Z3 BZN Z3 is offline
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Any chance of re-posting with the pictures, or e-mail to bwmoffit@hotmail.com?
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  #10  
Old 01-09-2012, 01:49 PM
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shipkiller shipkiller is offline
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http://www.shipkiller.com/General_Info_Page.html
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How does something immoral, when done privately, become moral when it is done collectively?
Furthermore, does legality establish morality?
Slavery was legal; apartheid was legal; Stalinist, Nazi, and Maoist purges were legal. Clearly, the fact of legality does not justify these crimes. Legality, alone, cannot be the talisman of morel people. - Walter E. Williams
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  #11  
Old 01-09-2012, 04:02 PM
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jmanscotch jmanscotch is offline
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THANKS a million, Shipkiller, been looking for more detailed photos for a while.
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