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      10-04-2019, 05:16 AM   #155
RobbiZ4
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Quote:
Originally Posted by RobbiZ4 View Post
...
At least, there are only 4 hinges in the parallelogram of the roof shell. With opened pressure screws (max.1 - 1.5 turns) the roof shell should be movable by 2 persons in parallel without any sticking. I will give it a try on my car asap.

In addition, I will get checked if the bolts of the hinges can be opened and cleaned by yourself...
Got it checked:
- the roof shell moves absolutely smoothly without any sticking, no additional grease should be required for a correct working roof
- the bolts of the 4 hinges should not get touched by U
- check for misplaced zips

Last edited by RobbiZ4; 10-06-2019 at 03:21 AM..
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      10-06-2019, 10:21 PM   #156
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Thanks Robbi. We're going to have a closer look as soon as my mechanic has some time. I'll let you know what we determine. There is definitely something interfering with the travel. As you say, possibly a zip tie in the wrong location or possibly some debris that made its way into the area and is now possibly causing an obstruction.
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      10-19-2019, 12:02 PM   #157
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Robbi, I think I might have discovered the problem. I operated the roof several times today and watched the operation very closely. The roof seems to "stick" in the same two spots consistently. So, I stopped the operation at the points in which it sticks and compared the right side (where the problem is) to the left side. I examined the snap ties, to see if any of the ones on the right side are in different locations than the left side as this could possibly indicate an obstruction as you previously suggested. One seems to be in a different location however I don't believe that it is making a difference. Then, I noticed an orange coloured washer. It appears to be a lock washer and it is located at a joint. The one on the right side is very loose. I can move it easily with my finger. The one on the left side is tight. I believe the mechanism may be slipping at two points during the travel, possibly because of a broken or loose lock washer. Please look at the pictures that I have posted and let me know if you think this could be the problem and if so what do you believe would be the procedure to replace or tighten that.
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      10-19-2019, 12:06 PM   #158
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Roof Problem

Robbi, here are the pictures. Please let me know what you think. Paolo
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      10-20-2019, 03:31 AM   #159
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Ciao Paolo,

Unfortunately I cant identify the location you mentioned, as I've never seen this problem before. Can you point me to the exakt position by an arrow on the pics or post a more sharpened photo?

On the last photo it looks a bit oily, doesn't it?

Last edited by RobbiZ4; 10-20-2019 at 09:02 AM..
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      10-20-2019, 12:41 PM   #160
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Got the videos, thanks. Will have a closer look at it tonight.
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      09-18-2020, 04:24 AM   #161
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Ciao Paolo,
how did you solve your roof issue?

Last edited by RobbiZ4; 12-01-2020 at 03:53 AM..
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      12-01-2020, 01:44 AM   #162
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Thanks for the great posts. What is the name of the shop you used? I'm in Cali now but headed back to the midwest after the new year. My Z4 leaks and the dealership gave me a crazy quote.
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      02-05-2021, 06:15 AM   #163
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Great post, just what I need, I have the same problem, many thanks!
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      02-05-2021, 06:19 AM   #164
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Thanks Sanyam89

Thanks Sanyam89, I have the same leak in my e89, just what I need to fix it!
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      02-09-2021, 04:08 PM   #165
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Bmw extended warranty covers just drivetrain

Had a 2014 and 2016 Z4. Want to keep it, but extended warranty is horrible. Read fine Print. It used to be great years ago. not anymore. I got the new one
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      04-04-2022, 05:55 AM   #166
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do you operate the roof with the car in motion or do you always stay parked until the the roof has completed it's cycle ? . .

Last edited by tasanersur; 04-06-2022 at 01:50 AM..
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      04-14-2022, 12:46 PM   #167
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I'll move with the top in motion assuming it's in a straight line, on level enough ground, not over bumps, etc. Just be aware that the default speed before the roof will stop on its own is something like 5 mph (might be higher on later models) but can be coded higher. I coded mine to 20 mph with Carly; later versions that are supposed to have some stronger components are said to be safe up to 30 mph.

Also what's with the survey links in your post?
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      04-14-2022, 02:22 PM   #168
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Quote:
Originally Posted by Tangent View Post
...later versions that are supposed to have some stronger components are said to be safe up to 30 mph.
To be honest, this isn't correct.
There was only a minor modification on the hydraulic pump in 2012 (and in the wiring to it as well as in the CTM), but no improvements on any other component:
=>
https://www.zroadster.com/forum/thre...4/post-3110861
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      04-14-2022, 04:49 PM   #169
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That's good to know though I would be curious about what technical changes to the pump were made and if that changes line pressures and the ability to deal with more airflow during operation.
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      04-18-2022, 03:36 PM   #170
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Has this problem been resolved yet? I'd like to know for the record.
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      06-12-2022, 10:37 AM   #171
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Quote:
Originally Posted by sanyam89 View Post
I also noticed the hydraulic line leak issue on the passenger side while opening the top last week. And I used 2 hose couplers from Cabriolet Hydraulics and 1-1.5 feet hose to fix the leak.

There are 2 hoses. One is pressurized while the top is opening and then other one when the top is closing. The crack was where the hose bends while the hardtop is in closed position. So, I cut the hose 6-8 inches before and after the crack and put the couplers with the new hose there so that the hose can still bend freely.

Fortunately the process was simple and costed me just $100 for everything. I hope this helps someone who struggles with this in the future.
Hi I have the same issue and wish to do the same repair process as you, we're did you purchase the small length of hose from ? Cheers
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      06-13-2022, 01:54 AM   #172
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Quote:
Originally Posted by Samdunn_97 View Post
Hi I have the same issue and wish to do the same repair process as you, we're did you purchase the small length of hose from ? Cheers
Did you havew a look at his last activity on this forum?
"Last Activity: 10-24-2017 01:09 PM"

I am not convinced of these couplings, since ALL 4 hydraulic lines in the upper bend can already be broken on most E89s. To completely repair the lines, 8 expensive couplings are needed.

I think a roof renovation with a new hydraulic wiring harness makes more sense.
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