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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 06-13-2013, 02:15 PM
rtbergman rtbergman is offline
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Location: Wenatchee, WA
 
Join Date: Jun 2013
Posts: 4
Mein Auto: 1998 Z3M Roadster
Problems with retractable top

My wife recently bought a '98 Z3M Roadster. First the brake light didn't work, so I replaced the switch under the brake pedal. Looking back, that was easy to figure out and fix.

We have had issues with the retractable top. The top motor only kicks in sporadically when opening or closing. Typically, when we push the button on the console, nothing happens. Other times it works on the first try. Occasionally, after multiple pushes, it will suddenly work. Next time we try it, however, same results. No obvious pattern. Sometimes it goes down, but won't go up, or vise versa.

The fuse is good, hydraulic fluid level is fine, etc. I replaced the top switch in the console, near the shift lever, thinking that might be the problem, but no such luck.

I've read about the microswitch in the hinge on the left side of the top being a problem. I hear it "click" when it is pushed up, etc. but have no way of knowing whether or not to replace that too. We live about 150 miles from a dealer, so I'm looking for things I can handle myself.

Advice?

Last edited by rtbergman; 06-14-2013 at 08:14 AM.
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  #2  
Old 06-15-2013, 05:16 PM
rtbergman rtbergman is offline
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Location: Wenatchee, WA
 
Join Date: Jun 2013
Posts: 4
Mein Auto: 1998 Z3M Roadster
I may be on the right track

Found info on this site about relay switches, located in the trunk next to the motor. Took them out (there are 2 of them) and brought them to a local auto parts shop, where they were able to test them. They were dead.
New switches ordered. Will post results.
Attachments show where these are located and what they look like. They are next to motor, in the trunk, between it and the rear panel. Easy to remove.

In the first picture they are at the 10 o'clock position, and are seen just behind the motor.

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Last edited by rtbergman; 06-15-2013 at 05:19 PM.
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  #3  
Old 06-18-2013, 02:59 PM
rtbergman rtbergman is offline
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Location: Wenatchee, WA
 
Join Date: Jun 2013
Posts: 4
Mein Auto: 1998 Z3M Roadster
I believe it is fixed!

Replaced the relays, in the trunk next to the motor, and it works beautifully! See attached pictures. Cost $42 for both. Keeping fingers crossed that this take care of the problem.
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  #4  
Old 06-19-2013, 11:56 AM
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Zedfor Zedfor is offline
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Location: Steinhaus, VA
 
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Posts: 216
Mein Auto: 2003 Z4, 2007 X3
Quote:
Originally Posted by rtbergman View Post
Replaced the relays, in the trunk next to the motor, and it works beautifully! See attached pictures. Cost $42 for both. Keeping fingers crossed that this take care of the problem.
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