2011 z4 top stuck up :(

froggomatic · 07-26-2011, 09:13 AM

While putting my top down, it stopped with the trunk standing open. It wouldn\'t move with either up or down button. The down button is red?

F87LUV · 07-26-2011, 09:26 AM

Is that "shelf" looking thing in the trunk snapped into place? It wont go down if its not.

Mick70 · 07-26-2011, 10:26 AM

Have you a "Smart-Top" module installed?

According to a German forum (the interesting posts start on page 7 with # 164), the manufacturer has confirmed that older models may disable the canbus and thus impair the roof mechanism due to voltage peaks. Apparently a transient voltage suppressor diode within the Smart-Top module may short-circuit the canbus causing a non-resettable poly fuse to blow.

However, it is told that this issue is remedied in newer modules (e.g. 1054-U v4).

Best regards

Mick

richard in NC · 07-26-2011, 05:34 PM

I had an issue once with a tall item ahead of the shelf. The top wouldn't drop all the way in and the trunk stayed up. The light flashed red and neither up nor down worked. I thought I was screwed. I shut off the car, restarted it and pressed "top up". It reversed and put the top back up. I resolved the issue with the item in the trunk and was able to put the top down. No issues since.

marcw · 07-26-2011, 07:41 PM

I had a similar issues once. I put a regular umbrella in the trunk with our luggage. The partition came down fine as did the roof. Once the roof started to exert pressure onto the partition the umbrella moved causing the partition to pop up. I wasn't able to move the roof up or down since the partition no longer had contact. I spent an agonizing 20 minutes trying to get the partition to snap back in which I finally did. This allowed me to raise the roof again. Since then absolutely no more umbrellas in the trunk!

Quote:

Originally Posted by richard in NC

I had an issue once with a tall item ahead of the shelf. The top wouldn't drop all the way in and the trunk stayed up. The light flashed red and neither up nor down worked. I thought I was screwed. I shut off the car, restarted it and pressed "top up". It reversed and put the top back up. I resolved the issue with the item in the trunk and was able to put the top down. No issues since.

Tamman69 · 07-27-2011, 01:36 AM

It is often user error but not always. Mine got stuck halfway a few months back. A lady had rear-ended me gently in a traffic queue (she paid for new rear panel which was already scratched so it ended well!). It loosened some of the wiring you can see by the pivoting struts that move the mechanism. Needed a garage to fix it, a bugger to get to!

07-26-2011, 09:13 AM	#1
froggomatic Froggomatic 1 Rep 6 Posts Drives: 2011 Z4 35i Deep Sea Blue Join Date: Jul 2011 Location: Florida iTrader: (0)	2011 z4 top stuck up :( While putting my top down, it stopped with the trunk standing open. It wouldn\'t move with either up or down button. The down button is red?
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07-26-2011, 09:26 AM	#2
F87LUV Lieutenant General 3689 Rep 15,082 Posts Drives: '16 M2, '23 GT4 Join Date: May 2007 Location: NJ iTrader: (4) Garage List 2023 Porsche GT4 [5.00] 2016 BMW M2 [8.66]	Is that "shelf" looking thing in the trunk snapped into place? It wont go down if its not.
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07-26-2011, 10:26 AM	#3
Mick70 Private First Class 9 Rep 157 Posts Drives: Z4 sdrive35i (before: 23i) Join Date: Nov 2009 Location: Germany iTrader: (0)	Have you a "Smart-Top" module installed? According to a German forum (the interesting posts start on page 7 with # 164), the manufacturer has confirmed that older models may disable the canbus and thus impair the roof mechanism due to voltage peaks. Apparently a transient voltage suppressor diode within the Smart-Top module may short-circuit the canbus causing a non-resettable poly fuse to blow. However, it is told that this issue is remedied in newer modules (e.g. 1054-U v4). Best regards Mick
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07-26-2011, 05:34 PM	#4
richard in NC Colonel 1232 Rep 2,602 Posts Drives: 2009 Z4 35i Join Date: Jul 2009 Location: Charlotte, NC iTrader: (0)	I had an issue once with a tall item ahead of the shelf. The top wouldn't drop all the way in and the trunk stayed up. The light flashed red and neither up nor down worked. I thought I was screwed. I shut off the car, restarted it and pressed "top up". It reversed and put the top back up. I resolved the issue with the item in the trunk and was able to put the top down. No issues since. __________________ 2020 X3M non-comp, Alpine White over black : Exec Pkg, ventilated M Sport seats, 20"s 2020 M2 Comp, Sunset Orange/Blk: Orange stitching, DCT, exec pkg, bicolor rims Gone '18 M550i, '16 X4 M40i, '15 M5, '13 X3 35i, '12 335is, '11 X5 50i, '09 Z4 35i, '08 550i, 06 X3, 06 650i, '02 M5, '99 540i
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07-27-2011, 01:36 AM	#6
Tamman69 Private First Class 10 Rep 119 Posts Drives: Z4 2009 SDrive23i Join Date: Aug 2009 Location: UK iTrader: (0)	It is often user error but not always. Mine got stuck halfway a few months back. A lady had rear-ended me gently in a traffic queue (she paid for new rear panel which was already scratched so it ended well!). It loosened some of the wiring you can see by the pivoting struts that move the mechanism. Needed a garage to fix it, a bugger to get to!
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