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View Full Version : sunroof drains + other to be checked, pics..locations



shogun
01-30-2012, 11:02 PM
Refers to E32 and E34
The drain hoses are going thru the A-pillar and in the rear thru the C-pillar, here pics from an sliced E32 where you can see it
http://twrite.org/shogunnew/upgrades&fun/cutestuff.html#Sliced_and_dicced_E32:

Then there are drain holes in the area under the wiper motor area to drain off the water which comes thru the fresh air grills above the blower motor

http://i44.servimg.com/u/f44/14/94/56/00/ablauf10.jpg
One of the drain holes in the sunroof area
http://i64.servimg.com/u/f64/14/94/56/00/dsc01510.jpg
To check if the area under the doors in rocker panel area is full of water or if the drain holes are clogged, you can remove the door sill cover and check here with a flashlight

http://i34.servimg.com/u/f34/14/94/56/00/korros10.jpg
Sliced area to show where the drain hole ends in rocker panels right and left
http://s71.photobucket.com/albums/i155/shogun_bucket/?action=view&current=SchiebedachablaufSchweller.jpg

Another thing to check the drain hole inside the e-box at the lowest point (where DME etc are located in engine room), there have been reports that these drain holes got clogged and expensive electronic devices like DME got damaged.
Drain from area where wiper motor is located, here the IHKA unit is also going thru the firewall into interior room, if these holes are clogged, you get water into the interior. Pic from E34
http://i44.servimg.com/u/f44/14/94/56/00/affnun10.jpg

Drain hose connections sunroof
http://bmwfans.info/parts/catalog/E32/Sedan/Europe/750iL-M70/LHD/A/1988/november/browse/sliding_roof_folding_top/sliding_lifting_roof_drive/

The hole in the firewall for IHKA and also the drain hole outside is shown here
http://www.bimmerboard.com/members/take/P1030372.jpg

rubber plugs in floor can slip out
http://www.bimmerboard.com/members/take/original/P1020853.jpg

here better to be seen, as well as one of the 2 drain holes for the IHKA under center console
http://www.bimmerboard.com/members/take/original/P1020855.jpg
holes towards engine room and the second drain hole IHKA seen from driver side.
http://www.bimmerboard.com/members/take/original/P1020859.jpg

If someone has more pics or hints where to check for clogged drain holes etc., please post them, then we have a detailed list.

another solution, drain ;-)
http://www.bilder-speicher.de/12013104931345.gratis-foto-hosting-page.html


In the trunk bottom on left side towards fender of my E32 are rubber flaps which lead the air from interior room thru the holes under the rear parcel shelf thru the trunk to the outside. Have no pics of these flaps.

And sunroof metal rusted, water dripped on seats, here our fix with pics
http://twrite.org/shogunnew/fixes/body.html#Clearing_the_sunroof_drains