Is some one can tell me how to remove the top lid to access the rear subwoofer on a BMW Z3 year 2000?

SOURCE: Will the wheels from a BMW Z3 M fit a 1999 BMW Z3 2.8 ltr roadster?

yes they will you just may need to use a wheel spacer

SOURCE: 2000 BMW Z3 -- lost owner's manual

I don't have a manual for 2000 but I do have a manual for a 2002. If you'd like a copy send me an e-mail and I'll send it to you.

SOURCE: how to replace rear plastic window of my 1999 BMW

Ths is an excellent DIY by wynlover, it is in pdf format for download.

http://www.zscca.org/techtopics/images/z3rearwindowinstallationinstructions.pdf

SOURCE: I have a 2000 BMW Z3 roadster. The switch for the

This is a problem with your wiring harness near the cab/trunk line. I've been trying to diagnose my faulty top (looks like all mine is sensor problems) and I came accross this problem many times on bimmerfourms.com There is lots of useful information there.

SOURCE: 2000 BMW Z3 convertible top stopped moving with motor

I just had the same problem. There is a hydraulic fluid reservoir in the trunk on the left wheel well. It should be filled to the little dot inside a circle on the tank. If not, turn the T-handle on the motor, just above the reservoir, counterclockwise. Unscrew the plug with an allen wrench and fill to appropriate level with hydraulic fluid. Replace cap and then turn T-handle clockwise and secure tightly. If tank was completely empty, it will take a few lifts back and forth of the top with button to build up good pressure. Thank goodness it is a cheap and easy fix. Its kind of difficult to get the fluid in the little hole though. I used a small turkey baster.