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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 11-07-2009, 10:09 PM   #1
zero assault
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Join Date: Nov 2006
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My Ride: 2012 BMW M3
Unplugged negative terminal on the battery, and now my dash is a xmas tree

Title says it all, I unplugged the negative terminal on my battery, plug it back in and most of my dash is lit up. How do I reset this? I really don't remember this happening any other time I did work on the car. Is it because I didn't leave it unplugged long enough?
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Old 11-07-2009, 10:55 PM   #2
zero assault
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So I went out and unplugged it again and left it off for about 45 minutes and still nothing, so I can rule that out. I posted the original post rather quickly so I'll add in some more details. Basically I unplugged the negative terminal on the battery for about 30 seconds to reset the computer, I plug it back in and now the BRAKE, ABS, DSC lights are lit up in yellow on my dash. How do I get this to go away?

(Mods if this is in the wrong section, my apologies, please move it to the correct section)
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Old 11-08-2009, 12:30 AM   #3
xi_ter
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You need to drive the car and the brake related lights BRAKE,ABS and DSC will go out.
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Old 11-08-2009, 02:25 AM   #4
zero assault
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Quote:
Originally Posted by xi_ter View Post
You need to drive the car and the brake related lights BRAKE,ABS and DSC will go out.
Yeah, I went back out there and turned the car on and they were off. I was a little frustrated but at least now I know for next time.
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Old 11-10-2013, 11:16 PM   #5
wentworth3
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Massive thanks for this post! Just did a oil filter gasket change, replaced coolant tank, and replaced both belts. Removed the negative terminal from the battery overnight. Was massively stressing after brake, abs & dsc lights came on after i got it all back together! All of which shut off after i pulled out of the garage.
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