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06-05-2020, 06:41 PM | #1 |
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![]() Hello, My 2009 BMW Z4 has that problem.If i push it it works but in other try it's happening again.What should i do? |
06-06-2020, 03:05 AM | #2 |
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Looks like hydraulics are not powerful enough to lift the roof... So i would look into that... Hydraulics fluid level can be checked. Maybe its low?
Saw this in repair manual: https://www.newtis.info/tisv2/a/en/e...e-top/8Izcdy22 If that shows fluid level being OK... Maybe pump itself not creating pressure? Hydraulic cylinders not actuating under pressure? Lines not sending pressure to cylinders? Damaged line. Maybe one side has pressure to actuate but other side doesnt. There are two cyllinders doing the job: left and right. http://bmwfans.info/parts-catalog/E8...op/hydraulics/
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2009 35i DCT Havana brown with ivory white interior. Mods: Cobb stage 1+FMIC, Wagner EVO1 FMIC, BMS DCI, KW V3 suspension, M3 front control arms, Hardrace RTAB, Michelin Pilot Sport 4S tires.
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06-06-2020, 04:57 PM | #3 |
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Drives: BMW Z4 E89 sDrive 30i
Join Date: Jan 2018
Location: Munich, Bavaria (Home of BMW)
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Does there exist a history of roof issues? I.e. did anybody do some repairs in the past.
What about the repeatedly lifting of the roof shell: does it "dance" itself like on the video or do you press a button repeatedly? |
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06-06-2020, 08:16 PM | #4 |
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Operate your roof only with the engine running
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA. |
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06-07-2020, 03:14 AM | #5 |
Call me "Dr. Bob"
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Drives: BMW Z4 E89 sDrive 30i
Join Date: Jan 2018
Location: Munich, Bavaria (Home of BMW)
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Nonsense. Thats only an option, if the battery is weak and has not been replaced in the last 10 years.
![]() Last edited by RobbiZ4; 06-10-2020 at 01:20 PM.. |
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bmwz4, convertible, hardtop, problem, stuck |
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