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BMW Z3 A Pillar Leak Repair

hard top

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The M44 Massive
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hard top submitted a new resource:

A Pillar Leak Repair - A Pillar Leak Repair

Some of you were so kind as to help me with a leak problem at the A*****ar seal on my 2001 Roadster. The possibility was raised that the rubber had shrunken and needed to be restored with Gummi-Phlege (sp?) or something similar. I did that, with only modest improvement in the situation. Then I followed another recommendation of tightening the roof latch. That apeared to "fix" the problem, at least for the moment.

Then I got my new/used...
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CliveB

Regular Member
British Zeds
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Aug 10, 2018
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40
Location
Essex
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Z3M 3.2 S50
Just tried your fix, fingers crossed it will solve my occasional drip before it gets any worse
 

Phil T

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British Zeds
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Feb 17, 2015
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Newcastle, Staffordshire
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Z3 3.0
I actually tried this with gorilla glue. Limited success, but the glue doesn't seem particularly malleable so the improvement is temporary. What product did you use & are you still watertight?
 

jonco

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I actually tried this with gorilla glue. Limited success, but the glue doesn't seem particularly malleable so the improvement is temporary. What product did you use & are you still watertight?
I used black silicone rubber seal from Halfords - can't remember exact brand. I never removed the actual plugs but just dug old sealant out with a small screwdriver. Squirted new in and wiped off residual.
Seven years ago and still ok :thumbsup:(damn shouldn't have said last bit ;)). Agree glue will not flex enough. When you have fixed it check foam under carpets - it will be soaking if you've had a long-term leak.
 

Grumps

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I just pushed the original grommets in and filled both pillars out with clear silicone and cleaned off to leave a tidy finish. It's never leaked since.
 

Phil T

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Feb 17, 2015
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Newcastle, Staffordshire
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Z3 3.0
Hi both,

Many thanks for this. The leak is small & I've been under the carpet looking for part of the wiring loom in the last couple of weeks so I know its dry (luckily). I shall purchase a sealant & have a go.

Two specialists have advised a new roof as the only cure, but it's red & a special edition so I didn't want to do that if I could help it. Funnily enough, both companies offered replacement soft tops...:shifty:
 

Grumps

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Hi both,

Many thanks for this. The leak is small & I've been under the carpet looking for part of the wiring loom in the last couple of weeks so I know its dry (luckily). I shall purchase a sealant & have a go.

Two specialists have advised a new roof as the only cure, but it's red & a special edition so I didn't want to do that if I could help it. Funnily enough, both companies offered replacement soft tops...:shifty:
Funny that. A new roof won't guarantee to correct the problem. Shrunk rubbers, bent basket etc could all cause leaks.
 
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Althulas

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Jun 14, 2014
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North Oxfordshire
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M Roadster
I tried the gorilla glue approach worked for a while but eventually came unstuck so applied some black silicone second time around which worked a treat.
 

Crystal Skull

Regular Member
American Zeds
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Mar 13, 2018
Messages
11
Location
West Palm Beach
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2.8 Roadster Conv
Great advice all around. I saw the original post on Bimmerfest and I saw where one member actually took the plugs completely out of the gasket. I asked him what tool he used and how difficult they were to remove....but no reply. So does anyone have any info you can share about the the plugs? Looking forward to digging into this thing. I'd appreciate any assistance.
 
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