BMW Z4

255 messages,  Last post on May 18, 2013 at 8:35 AM

You are in the BMW Z4 Forum.

What is this discussion about? BMW Z4, Convertible

#231 of 255 Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top by lpapadopoulos

Nov 03, 2008 (4:48 pm)

I have been told by word of mouth that the Z4 2004 has a problem taking in water through the seal in the Left Rear Side. At the moment, because of the water leak, my amp burned out and my motor for the top has been burned. I have been told that the bag that seals the motor is not water tight? Can this be true?
 
Does anyone one where i can find literature regarding this common defect so I can slap it into BMW face when I see them?

#232 of 255 Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top by lpapadopoulos

Nov 03, 2008 (4:51 pm)

I have been told by word of mouth that the Z4 2004 has a problem taking in water through the seal in the Left Rear Side. At the moment, because of the water leak, my amp burned out and my motor for the top has been burned. I have been told that the bag that seals the motor is not water tight? Can this be true?
 
Does anyone one where i can find literature regarding this common defect so I can slap it into BMW face when I see them?
 
There is no current Recall regarding this issue, as far as I have seen online.
 
Thank you, Lee.

#233 of 255 Low gears in 2004 Z4 2.5 5spd man by poodlefakir

Apr 19, 2009 (7:45 am)

Is anyone else bothered by the low gears in the Z4? I'm reving 3.5Krpm on the freeway just to do 70mph to keep up with traffik. Was wondering if anyone had tried taller tires???? Or any other ideas? Just rev her?
I need a 6 spd tranny! Or maybe change out the rear end. Probably spendy...
Thanks!

#234 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [lpapadopoulos] by bod2

Apr 26, 2009 (4:24 pm)

Replying to: lpapadopoulos (Nov 03, 2008 4:51 pm)
I bought my Z4 new in November, 2002 - just before BMW started its "Land Shark" commercials that introduced the vehicle. For the most part, I've loved the car. BUT starting last spring, I first noticed that the trunk would get wet after rains. I finally got it back to the dealer in time to replace the amplifier AND the motor for the top since both items had shorted out. The warranty had just expired, so I was out over $4K. I thought the problem with the wet trunk was fixed, but that problem came right back. Took the car to an independent mechanic who I trusted, and thought the problem was fixed. He did mention something about leaking through the taillight(?). I thought it was fixed last summer, but now (spring, 2009) the trunk is wet again.
Has anyone else had this problem?

#235 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [bod2] by robgski

Jun 02, 2009 (10:36 am)

Replying to: bod2 (Apr 26, 2009 4:24 pm)
Yes! I have a 2003 Z4, and this year for the first time, I also have a leak in my trunk, and had to replace the fried amp and other wiring for a lot of money (not covered by my extended warranty because of water damage. Unfortunately, it is still leaking and the dealer is baffled. The little well in the rear trunk driver's side fills up totally with water when it rains, and then the entire carpet gets saturated, dripping water into the electronics bin under the trunk mat. Today a convertible top guy is looking at it. Wonder how widespread this issue is...

#236 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [robgski] by mukkbo

May 26, 2010 (2:41 pm)

Replying to: robgski (Jun 02, 2009 10:36 am)
hi..
I'm having the same problem
recently with all these rain in CA, My trunk leaked water into the battery /AMP compartment and burned out my AMP.
Did the dealer take any responsibility for it or did u have to fix it out of your pocket?
As of now, my warranty has expired.
 
also, was it just the amp that you had to replace or did it affect any of the wires/ connection for the audio system?

#237 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [robgski] by mukkbo

May 26, 2010 (2:41 pm)

Replying to: robgski (Jun 02, 2009 10:36 am)
hi..
I'm having the same problem
recently with all these rain in CA, My trunk leaked water into the battery /AMP compartment and burned out my AMP.
Did the dealer take any responsibility for it or did u have to fix it out of your pocket?
As of now, my warranty has expired.
  
also, was it just the amp that you had to replace or did it affect any of the wires/ connection for the audio system?

#238 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [mukkbo] by lduggan

Nov 12, 2010 (7:55 am)

Replying to: mukkbo (May 26, 2010 2:41 pm)
I havb a 2004 Z4 currently in the shop for this very problem, a burned out amp and probably the convertible top motor because of water in the trunk and battery well. The problem was discovered when the audio system quit working and 3 days later the car would not start. Guessing it was might be a fuse and the battery, I discovered 1 /12 inches of water in the well area of the trunk which stores the battery and the amp. I've given the ok for the amp to be replaced but now I'm second guessing that decission if the problem will reoccur. The speculation is rain water through the rear tail light. Also it was suggested that the small drain in the convertible top's well, where it folds down, is clogged giving the water no where to go but in the trunk. Neither has been confirmed as the cause for the water.

#239 of 255 Tires by cliff23

Aug 24, 2011 (12:04 pm)

I own a 2005 Z-4 with the sports package (18" wheels). Love it! But, what is the most quiet, smoothest tire I can replace the original Bridgestone Run flats with, to achieve the most comfortable ride?

#240 of 255 Re: Z4 2004 - Leak from Top into Trunk - Burned Receiver and Motor for Conv Top [lduggan] by bod2

Aug 29, 2011 (6:16 pm)

Replying to: lduggan (Nov 12, 2010 7:55 am)
mokkbo - I had the same set of problems with my 2003 Z4, and had to replace the amp twice, and the battery at least once while the local BMW dealer fiddled with water in the trunk. Various remedies were performed - replacing the rear tail light, cleaning out the drain - but the problem wasn't solved until the roof was replaced(!). After incurring several thousand dollars in costs (the amps alone were over $1000 each), they did the roof for free.
 
That was about three years ago. My concern is that I recently found water in the well again. In posts on other blogs, I've found other Z4 owners with the same problem. Sounds like a design flaw to me. Time for a class action suit?
 
Let me know if your situation has been resolved, and if so, how.
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