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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 09-19-2009, 08:10 AM
Smashcbn Smashcbn is offline
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Location: Upstate New York
 
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Mein Auto: 1999 Z3 2.8
Gear looking light on dash

Hello all, I'm asking for a friend of mine who has a 3 series with a light on the dash that looks like a gear or a cog. What does that mean? Is the transmission going? Thanks!
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  #2  
Old 09-19-2009, 08:47 AM
dsuraci dsuraci is offline
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Mein Auto: 2013 328 M Sport Coupe
Brake pad wear sensor...
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  #3  
Old 09-19-2009, 01:26 PM
CalRick CalRick is offline
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Location: Southern California & Monterey
 
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Mein Auto: 2007 Z4MC & 95M3 Tracktoy
On the Z4, that's the auto trans overheat light; I would expect it would be the same for a 3 (assuming it has an auto trans....) The brakepad light looks like an old drum brake - (0)
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  #4  
Old 09-19-2009, 01:46 PM
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Hogie Hogie is offline
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Location: Liv'n where I am
 
Join Date: Dec 2006
Posts: 622
Mein Auto: 330i, Z3 2.8L, 545i
Light

I have a '00 Z3 and I have posted about this light many times. If it is the gear with an exclamation mark in the center then it si related to the tranny. The light can illuminate for several reasons.

If a true tranny failure or detected failure ( error) the tranny will go into limp mode which is like 2nd gear or so.

In my case I had the light from time to time over the last year. I finally took it to have the DME codes read, not the OBDII. It was the brake switch!!

THe brake switch is multi pole and one thing it does is send a signal to the torque converter that the brakes are being applied ( if you have an automatic)

Is yours going into limp mode?
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  #5  
Old 09-19-2009, 08:14 PM
Smashcbn Smashcbn is offline
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Location: Upstate New York
 
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Mein Auto: 1999 Z3 2.8
No the car seems to go forward and reverse fine.
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  #6  
Old 09-20-2009, 04:35 AM
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Hogie Hogie is offline
It's 5 O'clock Somwhere
Location: Liv'n where I am
 
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Mein Auto: 330i, Z3 2.8L, 545i
ok - sounds like it may not be a true tranny fault if it is shifting as it should with the light on. On mine, when the light illuminated the only option that stopped working was cruise control. Brake light and all worked fine.

You can have the DME codes read ny an independent BMW mechanic for probably around 75 bucks or so. If the switch you might get the whole job done for about 125.00 including the switch. I opted to pay the 75.00 bucks and buy my own switch.

The switch was nearly 60 bucks at the dealer and I spent an agonizing contorted hour trying to replace it ( which I did.) I would gladly pay the mechanic 125.00 the next time.

Anyway its a shot in the dark without the code but not too expensive just to replace. In my case the light cleared on its own after replacing the switch after a couple of operations.
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  #7  
Old 09-22-2009, 05:37 PM
Smashcbn Smashcbn is offline
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Mein Auto: 1999 Z3 2.8
OK Thanks
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