Remove those drain grommets for good.  The risk of the drain getting clogged is far worse than an insect crawling up it.

For BMW it's all about moving down the assembly line, install everything at one time. Let the customer deal with the crappy design. My daughter has a 2003 Z4 purchased new and I have had the top out more than I want, motors are now running over $600.00, one guy used a 09-14 Mustang pump motor, however it appears to sell for the BMW price. I have located the motor to the trunk. Nice video, people don't realize how much work it is to put together a decent video.

Excellent content.   Very informative.   Thank you.

Great job!

Great video - Really informative 👍👌

good job

To add insult to injury, the pre and post 5/2006 motors have the two hydraulic and the two electrical connectors swapped locations.  the older motors did not number the hydraulic connectors but the newer have the cable number stamped on the motor (and corresponding number on the cable if not worn off)... Also, no sure 'full' mean that the entire reservoir is filled to the brim but look that up before filling.

would be more interesting if you showed step by step
thanks

Very helpful thanks

I relocated my roof motor to the trunk, or boot, for brit speak I do love my Z4.

Why can't the motor be completely sealed and waterproof? The 10 or 15 seconds is going to run operating the top will not overheat that motor!

Madnesses to put it back in there, lt  will fail again in the future. It’s now well known that you move the motor to the boot where it’s dry

What gears can wear out and or strip out? 2. Do you wave a video on total rooftop removal

Hi!
Tanks for your educattional video, Iwonder if you can help me, my cabb doesn't lock when I open it, so the red light keeps flashing all time, what's wrong? thanks in advance! Greetin Iradj

Why not make the drain hole bigger and move the motor out of the water passage??????????

My z4 top wasn’t working properly seem like it was low on fluid. I managed to remove the motor from behind the back seat, I’m 61 and not as agile as I used to be but still got it out and fixed it without removing the top or the rear tray.

would it cause water to pool in the boot

does all the z4 versions drain hole can get access from the underneath of the car? and what can you suggest to make the cleaning more easy maybe just take out the rubber grommets off so the dirty water can flow. thanks for help.

2 questions what happens if you connect the two wires in the bottom of the motor wrong? I did not mount everything back before I tested, but did not work I could hear the electric motor spool but no movement.. same thing when I had the whole convertible out and I tried with a car battery, no movement of the pistons just heard the electric motor spool. Please help me out

How did you get the u-frame back into the clips inside? Ive got everything else done and working, just cant seem to push it down into those damned clips!