Question about 2005 BMW 325Ci Convertible
I tried the convertible button after a car wash and it did not function. I wonder if it may be a fuse but I do not know which one.
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Posted on Jan 02, 2017
Had the same problem with my '03 330xi. Navigation worked fine but radio and CD did not work at all. I opened the fuse box located in the glove compartment to check the three fuses associated with the navigation system and radio. #7, #39, and #41. All three fuses were intact so I put them back in. I then put the key into the ignition, turned it to position 2 and miraculously the radio came to life. I guess it acted as some type of reset?
Posted on Nov 21, 2008
I have this same vehicle and have had some problems with my top as well. Apparently, it is pretty common as I was recently talking to a shop owner with the same model and I were comparing notes. First thing to check is that the two "nobs" in the trunk are not rotated. The two nobs I am referring to are located on the top of the trunk when opened and when moved, either drop or lower the compartment into which the convertible top drops into when lowered. If these nobs are not turned so that the compartment is available, the top will not work. I have always wondered why they even installed those, but I was told it was so that we could have that extra 3" of storage space if absolutely needed. If the nobs are in the right position and your top is still not working, you can manually drop or bring up the top by turning the red handle (also located in the trunk near the convertible top storage) so that it is no longer flush, but turned so that you can see the 'O' shape. This has been my only option when my top started acting up in the middle of a Florida thunderstorm. Fantastic timing these things have. I hope this was helpful. If you are like most others who own the z4, or any bmw (or even a vw), you know that the mechanics (engine, etc.) are great in the fact that they rarely, if ever, cause any issues, but silly things like the stupid cup holders (don't get me started) and eventually bigger, but still aesthetic, items liek the top are the first to go. Would still never trade the z4 for a sedan.
Posted on Jun 07, 2009
In general, without any testing or diagnosis, you could be dealing with any of the following:
* Open relay - Located at the pump unit
* Close relay - Located at the pump unit
* End position micro-switch
* The operating switch itself
* An issue with the pump unit, but I doubt this, due to the intermittent nature. However, do check the hydraulic fluid level.
The windows do not have to be down for the system to run.
The brake pedal must be pressed while operating the switch. There is a switch at the pedal that signals the convertible top system, but if your brake lights are functioning, the brake switch will not be at fault.
The system is pretty simple and some quick electrical tests should locate the faulty item.
The Bentley repair manual for the Z3 has all of the electrical wiring diagrams, for use in the diagnostics. You can purchase this at Bavarian Autosport 800-535-2002.
Posted on Sep 03, 2009
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