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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 12-25-2010, 04:43 PM   #1
cowbell
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Join Date: May 2010
Location: Schenectady
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My Ride: 2002 SG M3 coupe
SMG Warning light on 02 M3

soo i've been gone from my car 3 weeks and after admiring my lights for a little too long last night i killed my battery.. (please don't let that story stop yall from helping )

jump started about an hour ago and my smg warning light is on...anyone have any ideas why this would occur? i hear it can be an early indicator of battery/alternator failure?

some help? thanks folks
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Old 12-25-2010, 11:30 PM   #2
IFX
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is it driving ok?
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Old 12-25-2010, 11:40 PM   #3
Cazz
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The light can get triggered at low voltages. If it is driving fine, see if it clears on its own.

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Old 12-26-2010, 08:04 AM   #4
cowbell
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its driving fine, ill take it for another spin today-thanks guys

EDIT: cleared! thanks!
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Last edited by cowbell; 12-26-2010 at 10:53 AM.
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Old 07-22-2012, 02:19 AM   #5
Jmar
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I know this is 2 years plus old, but did the light clear on its own? My battery also dies and after jumping it my SMG light (little yellow gear) is on and driving me nuts. Car drives normal, but havnt gone far out of fear of being left stuck.
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Old 07-22-2012, 01:34 PM   #6
sakumaxp
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Quote:
Originally Posted by Jmar View Post
I know this is 2 years plus old, but did the light clear on its own? My battery also dies and after jumping it my SMG light (little yellow gear) is on and driving me nuts. Car drives normal, but havnt gone far out of fear of being left stuck.
its always a good idea to buy a salmon relay and put it in a little baggy and stuff it in your glove compartment, this way if your relay goes out while youre on the road, youre prepared. i have one but i never had to use it yet *knock on wood*
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Old 07-22-2012, 08:46 PM   #7
Jmar
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What are the symptoms of a bad salmon relay? My gear light (number) does not flash, I hear the prime pump when I unlock the doors, which btw always thought and still think that is the fuel pump being my 02' M3 made the same sound and it was a 6 speed. And have no other issues other then the little yellow gear looking light on my dash. Again,this first happened after having my battery die on me. As far as I know there's no such thing as a relay " on it's way out", it's either good or bad, like a fuse it can only be good or blown, no in between...... Please advise, thanks guys!
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Old 07-23-2012, 01:18 PM   #8
sakumaxp
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some things a bad relay can do are damage other parts that are more expensive to fix, instead of payin 20 bucks for a relay you might have to pay 100 times that amount, now im not sure but if i remember correctly i read something about having a bad relay can send false electrical signals and cause the pump to fail or something along the lines of that, dont quote me on that one though.
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