roof drain holes

Hi, yes it's not difficult to check the drains are clear. If you pour a little water slowly down the side of the roof on a dry day you should see it exit from behind the sills. If it doesn't pour out the drains are blocked & need clearing.
If you use the search facility there's about a million posts on it :thumbsup:
Rob
 
It may help to remove the drainage bungs on the underside of the car, if lots of water and/or mud comes out its another sign they are blocked: http://www.z4-forum.com/forum/viewtopic.php?f=2&t=79188&hilit=drain+holes
 
If your roof motor is still lurking in the pit where BMW fitted it, I would really consider getting it moved to the boot. :thumbsup:
 
firebobby said:
If your roof motor is still lurking in the pit where BMW fitted it, I would really consider getting it moved to the boot. :thumbsup:

Agreed, or this can happen...
https://youtu.be/iiA0J5rKoE4
Rob
 
After the first drain clean you will find that it is possible to carry this out without removing the wheel. This helps speed the process up and can be done more regularly.
Happy cleaning. Like the others have said. Relocating the motor removes this chore altogether.
 
In my experience the guides to drain cleaning don't help much. The main problem seems to be that muck accumulates between the motor housing and the bottom of the bucket it sits in. You can't really clean this from the bottom and doing it from the top is difficult at best. Cleaning from the bottom is worth doing but is only a small part of the issue.
 
Here is a link to a pdf guide that will show you what to do. http://www.bimmerfest.com/forums/showthread.php?t=756548

Although I did do it a few months ago following Marlon's advice on his link above and it worked like a charm :thumbsup:
Yes, you can't see what you are doing but it's not very difficult to find the bungs, remove them and clean the holes out by just feeling for them. I've moved my motor to the boot now, but still intend to do this every now and then just to keep them clear.
 
Geezah said:
Pick out the bungs....then throw them away!
+1
Durham Dave's son Cory removed mine saying 'I'll chook these away fe ye then?'
I said 'go ed den lar'. lol
between geordie and scouse we both managed to concur on the uselessness of the roof-drain plugs.
:lol:
 
Chris_D said:
Geezah said:
Pick out the bungs....then throw them away!
+1
Durham Dave's son Cory removed mine saying 'I'll chook these away fe ye then?'
I said 'go ed den lar'. lol
between geordie and scouse we both managed to concur on the uselessness of the roof-drain plugs.
:lol:

Eh? How are the Essex massive sposed to understand that! Its foreign innnnit :lol:
Rob
 
Cleaned mine out a few weeks ago found the best gizmo to use being curtain wire which is a perfect fit for the drain holes and pliable.
 
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