why do E30 Sunroofs rust?

Post Wed Oct 24, 2012 8:45 pm

Is it condensation/poor rustproofing?
Hot air rising?

Other equivalent aged cars are not so prone.

Post Wed Oct 24, 2012 8:59 pm

The sunroof panel panel rots because the is no paint or protection on the inside, moisture gets trapped between the outer skin and the frame and rots it from the inside out!! It is much the same story with the roof itself, moisture gets in where the sunroof tray is bonded to the roof and festers away unnoticed.

Post Wed Oct 24, 2012 10:47 pm

penton08 wrote:The sunroof panel panel rots because the is no paint or protection on the inside, moisture gets trapped between the outer skin and the frame and rots it from the inside out!! It is much the same story with the roof itself, moisture gets in where the sunroof tray is bonded to the roof and festers away unnoticed.

Thank you

My Golf Mk 1 GTi did the same. but I have had loads of 190E's and never seen the sun roof panel rot.

Post Thu Oct 25, 2012 10:16 am

You can see here it's only partially painted:

Post Thu Oct 25, 2012 11:00 am

The sunroof rusts because EVERYTHING else around it rusts!!!

I apologise... I lost control of my senses.

My e30 and I are going through a rough patch in our relationship

Post Thu Oct 25, 2012 10:30 pm

bab-91 wrote:The sunroof rusts because EVERYTHING else around it rusts!!!

I apologise... I lost control of my senses.

My e30 and I are going through a rough patch in our relationship

Attach some Zinc to it... Sacrificial Protection.....

Post Thu Oct 25, 2012 10:54 pm

bab-91 wrote:The sunroof rusts because EVERYTHING else around it rusts!!!

I apologise... I lost control of my senses.

My e30 and I are going through a rough patch in our relationship

I was going to say it rusts because it's attached to an E30, but in the circs I'll keep that to myself.

Check out the farmer selling his E30 in external ads, that'll cheer you right up!

Post Fri Oct 26, 2012 12:58 am

I doubt it, I can show the little surprise's my car had for me