Water in wells of the Boot?

General E30 related discussions -
Please put technical questions in E30 Tech Help forum below

Moderator: martauto

Post Reply
bedumon
E30 Zone Regular
E30 Zone Regular
Posts: 387
Joined: Mon Sep 07, 2009 11:00 pm
Location: Birmingham

Sat Jan 30, 2010 1:58 pm

I've opened the boot and had a look in the wells to get the jack out and there's alot of water in both sides....BUT the cars been sitting on the drive for the last month. I'm quite confused cause I've read before the water comes from holes in the arches when the car has been driven.

Maybe new boot rubbers would do the trick? :?

Cheers.
Nay
Channel Island Crew
Channel Island Crew
Posts: 3988
Joined: Wed Aug 13, 2008 11:00 pm

Sat Jan 30, 2010 2:03 pm

We found a leak in the spoiler holes on mine. Otherwise boot seals are a possible cause.

Urm, have you tried waiting for it all to dry (not necessarily the water in the wells) and running water over it, then quickly opening the boot to catch the culprit red handed?
Image

Uni is killing the project.
capri_rob
Married to the E30 Zone
Married to the E30 Zone
Posts: 9681
Joined: Tue Feb 19, 2008 11:00 pm
Location: South Staffordshire

Sat Jan 30, 2010 2:36 pm

Boot seal, Rear light seals and spoiler holes are the usual culprits.

If you can't find the leak and you want a proper bodge just drill a small hole at the lowest point of each well, and then paint the bare metal where you've drilled with hammerite or similar to stop it rusting - that way the water can't collect there and will simply drain away. :D
Image

e30topless said : Proper BMW's have 4 headlights, last of the run was the E30 and E34/E32 anything after that is just complete shite
oakey
E30 Zone Addict
E30 Zone Addict
Posts: 4891
Joined: Fri Feb 10, 2006 11:00 pm
Location: Surrey

Sat Jan 30, 2010 3:06 pm

I'd guess at rear light seals. Mine were letting through water that was collecting in the boot wells. Easy and cheap to replace. Bootlid seal is less likely to drip water into the wells.
Image
DaveD
E30Zone Wiki Specialist
Posts: 5129
Joined: Tue Jan 11, 2005 11:00 pm
Location: Sheffield

Sat Jan 30, 2010 6:24 pm

capri_rob wrote:Boot seal, Rear light seals and spoiler holes are the usual culprits.

If you can't find the leak and you want a proper bodge just drill a small hole at the lowest point of each well, and then paint the bare metal where you've drilled with hammerite or similar to stop it rusting - that way the water can't collect there and will simply drain away. :D
there is a factory drain hole there already ...just needs clearing out
Image
shimsheemer
E30 Zone Regular
E30 Zone Regular
Posts: 533
Joined: Sun Oct 08, 2006 11:00 pm
Location: South

Sat Jan 30, 2010 6:42 pm

Sometimes the rear sunroof drains (which run out of the vent ellipses) allow water out. If I remember rightly they are held on with single position jubilee type clips. I have also had trouble with the rear light seals and boot seal. The holes in the wells is a quick fix that an independent technician did for me, but I'd leave it until you've done the other fixes and checked the original drains. Worth checking under the rear seat bench too as the sunroof and rear quarter-lights love sending water under there too...

Open the boot after a spot of rain and hunt for water traces/trickles - they do show up sometimes...
User avatar
mc_hawkings24
E30 Zone Regular
E30 Zone Regular
Posts: 534
Joined: Mon Jul 06, 2009 11:00 pm
Location: surrey

Sun Jan 31, 2010 11:00 am

best thing to do is get in the boot and have a (trusting) friend use a hose over the boot.
I had to do this to find out where water was coming in. I'd replaced the boot sill but not the rear light sills which were buggered.

£10 for two at your dealer
bedumon
E30 Zone Regular
E30 Zone Regular
Posts: 387
Joined: Mon Sep 07, 2009 11:00 pm
Location: Birmingham

Sun Jan 31, 2010 1:45 pm

Cheers guys. Now for some detective work to try an hunt down the leaky bit. :)
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Sun Jan 31, 2010 4:39 pm

Talcum powder is the way to track down the point of entry!
Sprinkle it around, and the water will wash a track in it where it comes in.
cypriot_boy_2k7
E30 Zone Squatter
E30 Zone Squatter
Posts: 1641
Joined: Mon Jan 29, 2007 11:00 pm
Contact:

Sun Jan 31, 2010 5:21 pm

check the arial hole to mate
bedumon
E30 Zone Regular
E30 Zone Regular
Posts: 387
Joined: Mon Sep 07, 2009 11:00 pm
Location: Birmingham

Mon Feb 01, 2010 1:43 pm

Should I remove the carpet in the boot and then try talcum powder because I don't think its running over the carpet? :?
ade36
E30 Zone Newbie
E30 Zone Newbie
Posts: 222
Joined: Wed Feb 04, 2009 11:00 pm
Location: Herne Bay

Mon Feb 01, 2010 1:50 pm

If you can't find the leak and you want a proper bodge just drill a small hole at the lowest point of each well, and then paint the bare metal where you've drilled with hammerite or similar to stop it rusting - that way the water can't collect there and will simply drain away.
This worked for me last year!
Image
User avatar
Kos
E30 Zone Team Member
E30 Zone Team Member
Posts: 15546
Joined: Tue Jul 12, 2005 11:00 pm
Location: London / Cyprus
Contact:

Mon Feb 01, 2010 2:03 pm

rear boot seal and rear light seals are the usual culprate , however new ones may not cure the problem.

the lip of metal the boot seal goes on to can rust away, and water can still seep in and collect into the boot.
PUKAR DESIGNS - Reproduction BMW Decals Labels Sticker & Number Plates
www.pukardesigns.com
www.facebook.com/pukar.designs/
IG Pukar.Designs
safedave
E30 Zone Regular
E30 Zone Regular
Posts: 324
Joined: Fri Apr 04, 2008 11:00 pm
Location: halesowen

Mon Feb 01, 2010 2:06 pm

i had same problem, then noticed i had condensation on my rear passenger lights, now sorted with new seal for light!!!
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Mon Feb 01, 2010 2:35 pm

bedumon wrote:Should I remove the carpet in the boot and then try talcum powder because I don't think its running over the carpet? :?
Take the carpet and the side liners out. Be very suspicious of any slight orange stains anywhere on the inner wheel arches, however small - they are probably rust holes!
kdevitt
E30 Zone Regular
E30 Zone Regular
Posts: 576
Joined: Sun Feb 05, 2006 11:00 pm
Location: Dublin
Contact:

Mon Feb 01, 2010 2:54 pm

Brianmoooore wrote:Talcum powder is the way to track down the point of entry!
Sprinkle it around, and the water will wash a track in it where it comes in.
+1 - used this successfully myself, worked a treat

Mine was drenched at the weekend - rear lights hadn't been tightened up by the guys who did my respray, its fine since - including after a power washing.
Post Reply