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Steve, BMW Expert
Category: BMW
Satisfied Customers: 24175
Experience:  BMW Expert
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I have a 2009 bmw z4. The convertible hard top will not go

Customer Question

I have a 2009 bmw z4. The convertible hard top will not go down. When I press and hold the down button the windows go down and I here a click from the front an back. Nothing moves and there is no motor sound. The buttons stay green and I have checked all the common issues.
Submitted: 11 months ago.
Category: BMW
Expert:  Steve replied 11 months ago.
Hello and welcome,
My name is ***** ***** it will be my pleasure to assist you today.
What question did you have about this? What did you want to know?
Customer: replied 11 months ago.
What is the common cause of this issue
Expert:  Steve replied 11 months ago.

the answer to your question "What is the common cause of this issue"

is that the common cause is a failed hydraulic unit

Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.

Customer: replied 11 months ago.
Steve I have do e my research, and you are supposed to be the expert. What do I need to check to confirm what you suggest.
Expert:  Steve replied 11 months ago.
I can only answer the question that is asked.... expecting me to infer some other question is unfair.
The only way to confirm is with a BMW scan tool. As the question has been answered please Kindly click on a positive rating to ensure I receive proper credit for my time and answer.