About 3/4 of the times I put up or lower my convertible top it needs manual help or I can turn the motor off and position the top in the right place then turn the motor back on and it will move alittle more or continue its cycle. Where is the motor, how do I check the hydraulic fluid and what fluid does it use, am I barking up the wrong tree? Where should I start and what can I do?
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Re: 01 m3 convertible top slow or needs manual help
Hi, the convertable hood motor is located inside the boot on the left hand side under the trim panel , once this is removed you will see a grey coloured foam insulation , the motor is housed in this , to check the fluid level , with the roof closed the resivior sould be approxamately 3/4 full . if this is low check for leaks on the pipe work under the storage compartment lid , hope this helps regards mark
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All three wire showing 3 it should be all 4 wires, In the back of the rear seat is the convertable top module, the yelloow black wire should go ground to bring it down.Other than that a new module will be needed,this gets its command from the window main switch so see if yellow/black wire switches over
you can change to manual operation by pulling the releasse lever under the l/r seat and this deactivate the moters the roof will open and close manual but you will have to comvert the rear lid when open to secuer the resar lid when the roof is open and this to hold it down.two ruber hold downs like you would use a a beash buggy bonnet
I have a 2004 Saab 9-3 Arc convertible that had the same problem. The spring on the hinge assembly for the package shelf latch assembly was broken. The part itself is over $300. If you have someone remove the spring, your top will work again. You'll just have to put up with the top shelf hanging down in your trunk about 1 foot, but you can still manually move it to place things inside like your luggage or golf clubs.
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.