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      07-06-2020, 01:34 PM   #1
Sarreguin85
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Bleeding of Soft Top Hydraulics?

Hey everyone, so recently, my Z4 fell victim to the infamous hydraulic pump failure. I'm looking to install a new one I got for it, but in the process, I lost a lot of hydraulic fluid. I have a bottle of the stuff, but I'm curious if anyone knows of a way to bleed to system in the car? I've read other people say to run the motor through the procedures a few times with the bypass valve open but I don't see how this would bleed it... Any help would be appreciated!
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      07-14-2020, 04:09 PM   #2
belcom
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Please don't quote me on that as I have not done the job myself however in one of the top motor threads recently someone had mentioned that the hydraulics for the top motor are self-bleeding.

I had an issue personally where the top stopped operating even though the motor was replaced. At some point in time I had just pushed the button and held it pressed for a long time. In a minute or so I started hearing the fluid rushing through the lines and the roof had activated and working since. Felt like it was a problem with air in the hydraulics.
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      07-15-2020, 09:31 AM   #3
rsutoratosu
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Thats one of the reason I haven't done mine.. I couldnt find the info on bleeding also.
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      07-21-2020, 08:41 PM   #4
BobR07Z
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Quote:
Originally Posted by rsutoratosu View Post
Thats one of the reason I haven't done mine.. I couldnt find the info on bleeding also.
Not sure if you replaced the motor yet or not but I recently did and will tell you to fill the reservoir 3/4 and manually raise and lower the top once or twice checking the fluid level and then run the motor as it will self bleed out. Just keep an eye on the fluid level at least 1/2 - 3/4 filled at the end.
Good luck!
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      07-22-2020, 01:00 PM   #5
rsutoratosu
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I couldnt find this to reply the other day.

I haven't done mine yet.. still sourcing motor, etc.. need to find time to do it, etc..


https://www.zpost.com/forums/showpos...86&postcount=6
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