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Outside temp and roof opening ?

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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buzyg
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Outside temp and roof opening ?

Post by buzyg » Fri Nov 02, 2018 8:02 pm

Only recall lowering the soft top once on a frosty morning. That was a few winters back. No issues, didn't give it a thought at the time. Tis usually tucked up in a nice warm garage, when it's cold. :wink:
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Nick9one1
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Outside temp and roof opening ?

Post by Nick9one1 » Fri Nov 02, 2018 8:08 pm

I think there is a bit of misunderstanding about gummi pflege.. it literally translates to 'rubber care'.

In my experience it works well, and its my go to product for seals. But its basically the same as anything sold as 'rubber seal treatment'.

The only things to avoid are lubricates/sprays like wd40 that aren't specifically for seals - They will deteriorate the rubber over time.
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Busterboo
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Outside temp and roof opening ?

Post by Busterboo » Fri Nov 02, 2018 11:30 pm

djstan wrote: Fri Nov 02, 2018 5:32 pm Is gummi pflege better than a standard silicone lubricant spray?
Better than, I don't know, but it's very good.
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Outside temp and roof opening ?

Post by Busterboo » Fri Nov 02, 2018 11:34 pm

sars wrote: Fri Nov 02, 2018 5:26 pm A few years back, 2011 I think, we had the coldest day that I can ever recall, I had to leave home at 05:30 to get to Birmingham airport for a flight. Cleared all the windows, sprayed de-icer etcetera but the doors refused to open because the windows were completely welded closed with ice. Thought about the warm water trick but the temperature differential would have been huge so as a last resort I operated the hood mechanism such that it un-sealed the windows and then I could get in the car.

It was -17 C

The roof didn't close fully afterwards so it was a tad drafty, but after an hour I stopped and closed it properly and there was absolutely no damage and I had no issues afterwards for the whole time I owned the car.
A really good, interesting, relevant and useful post.
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BigAlC
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Outside temp and roof opening ?

Post by BigAlC » Fri Nov 02, 2018 11:46 pm

From my E89 days. Was a cold one, car was brand new that day.
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Bing
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Outside temp and roof opening ?

Post by Bing » Sat Nov 03, 2018 1:11 pm

BigAlC wrote: Fri Nov 02, 2018 11:46 pm From my E89 days. Was a cold one, car was brand new that day. FB_IMG_1524901044493.jpg
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sars
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Outside temp and roof opening ?

Post by sars » Sat Nov 03, 2018 3:23 pm

Busterboo wrote: Fri Nov 02, 2018 11:34 pm
sars wrote: Fri Nov 02, 2018 5:26 pm A few years back, 2011 I think, we had the coldest day that I can ever recall, I had to leave home at 05:30 to get to Birmingham airport for a flight. Cleared all the windows, sprayed de-icer etcetera but the doors refused to open because the windows were completely welded closed with ice. Thought about the warm water trick but the temperature differential would have been huge so as a last resort I operated the hood mechanism such that it un-sealed the windows and then I could get in the car.

It was -17 C

The roof didn't close fully afterwards so it was a tad drafty, but after an hour I stopped and closed it properly and there was absolutely no damage and I had no issues afterwards for the whole time I owned the car.
A really good, interesting, relevant and useful post.
Thank you kind sir :thumbsup:
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Gone 2017 Iridium SL400, 2015 435d xDrive Convertible, 2012 E350 CDi Convertible, 2010 DSB Z4 sdrive30i, 2008 Audi A4 Cabriolet, 2006 Phoenix Yellow Z4 2.5Si, 2003 Saab 9-3 Convertible

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