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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > One type of E93 roof drain fix



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      12-22-2019, 07:18 PM   #1
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One type of E93 roof drain fix

Turns out there are more than one drain fix for the E93 roofs. This might be your problem and it may not. Here is my own experience that may help you find resources if you have the same issue. On each side of the roof you will find these drains where the needle valve inserts itself into a grommet hole. That's simple enough, but look inside the grommet hole and you will find a small part that pushes the needle valve back to open it. Without the small piece inside the pin valve never opens, and water will NOT drain as designed. Take a look at these pictures. One picture will show you the piece inside and the other will show it missing. Now go to the next post where I continue to show how to replace the part...
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      12-22-2019, 07:21 PM   #2
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There is a BMW kit that includes the drain parts for replacement. I bought mine off Amazon.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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      12-22-2019, 07:26 PM   #3
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You will need to partial open your roof to easily access your drains and then remove the inside panel to make the drain socket replacement. There is one screw on the inside of the panel and then lift up to unsnap it from the interior.
The repair is pretty straight forward once you get into it.
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      12-22-2019, 07:32 PM   #4
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The fix was easier than I expected in the beginning. Hopefully this will give you and idea what to look for if your E93 roof drains are not working. This could be one of the causes. The needle valves will not be opened with the little piece missing in the drain socket. Mine were fine until I stuck a metal air nozzle into the left side to check to see if the drain was clear. My own air nozzle stuck in that socket is what broke mine. I never knew it was there until I broke it. So maybe I will save you from the same fate as my original mistake. Have a nice day!
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      12-22-2019, 09:00 PM   #5
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Thanks for the heads up.
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      12-27-2019, 05:43 PM   #6
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Will have to check out.
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      01-13-2020, 06:23 PM   #7
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Milkmaster, before you did the fix with the new parts, what were the symptoms?

Where did water accumulate?

Great info!
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      01-14-2020, 07:26 PM   #8
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I was doing a drain check to make sure the drain lines were clear. I stuck my metal air nozzle into the "cup" and felt something give way. It turned out to be the little piece inside that cup "shown in the pictures" that pushes the needle valve open when the roof closes. That's when I bought the parts and replaced it before any problems came about. If that little piece is NOT there, then the needle valve will not open and allow the water to drain into the lower tube and out the bottom of the car onto the ground beneath the running board. Hope this helps.
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      01-14-2020, 07:57 PM   #9
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Thanks, very clear. I will look in that area to make sure the cups are there. Everything about this car is new to me.
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      09-07-2020, 06:45 AM   #10
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Hello,

It seems that I have a similar issue, but somehow different. The valve on my rear left side is loose, would it be possible to share a photo with the valve fixing or some guidance. I am sorry, but struggling to understand how it needs to be put in place from previous photos. Thank you in advance for your help.
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      09-07-2020, 12:06 PM   #11
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Adding this to my list

Water Drains
https://www.e90post.com/forums/showt...hlight=battery
https://www.e90post.com/forums/showthread.php?t=1566005
https://www.e90post.com/forums/showthread.php?t=1680103

The lower exit point getting clogged is often a problem in al 3's
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      09-07-2020, 02:33 PM   #12
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Quote:
Originally Posted by Alex878787 View Post
Hello,

It seems that I have a similar issue, but somehow different. The valve on my rear left side is loose, would it be possible to share a photo with the valve fixing or some guidance. I am sorry, but struggling to understand how it needs to be put in place from previous photos. Thank you in advance for your help.
Sorry but I am not sure what exactly you are asking. The needle valve is the portion that sitcks into the socket. The socket must have the small disc inside it to push back the needle and allow the water to go into the lower socket portion and then out the bottom of the car. The needle valve will not function if the small disc is missing and NOT in the socket to open the valve,
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