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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Wed, Oct-21-2009, 07:51:09 PM   #1
BlueAngel M3
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Default How do u use the fuel consumption on the OBC

I'm trying to figure it out but had little trouble. Someone please tell me how u set the fuel consumption on the OBC? Thank you.
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Old Wed, Oct-21-2009, 07:53:05 PM   #2
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Assuming you filled your tank up
1. you just select Consump 1 or 2 and press the set/rest hold it and it will turn zero.
2. then on the odo you set the trip to zero and that is about it

i guess that answers your question
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Old Wed, Oct-21-2009, 08:03:32 PM   #3
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Are you trying to compensate for when it's inaccurate? You have to unlock the OBC.

http://www.bimmerinfo.com/E36_OBC_tricks.htm
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Old Wed, Oct-21-2009, 08:11:01 PM   #4
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Quote:
Originally Posted by Aavi View Post
Assuming you filled your tank up
1. you just select Consump 1 or 2 and press the set/rest hold it and it will turn zero.
2. then on the odo you set the trip to zero and that is about it

i guess that answers your question
Thank you!
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Originally Posted by M3n00b View Post
Are you trying to compensate for when it's inaccurate? You have to unlock the OBC.

http://www.bimmerinfo.com/E36_OBC_tricks.htm
No, I wanted to see what I average a day, but thank you.
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Old Wed, Oct-21-2009, 11:26:25 PM   #5
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if you want to find out what you average a day:
-Reset Consump 1 or 2 everyday the first time you drive your car.
-Better reset consump 1 for everyday and reset consump 2 only on full tank.

Shhh! dont tell'em i told you....its a secret.

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Old Thu, Oct-22-2009, 12:40:18 AM   #6
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Quote:
Originally Posted by Aavi View Post
if you want to find out what you average a day:
-Reset Consump 1 or 2 everyday the first time you drive your car.
-Better reset consump 1 for everyday and reset consump 2 only on full tank.

Shhh! dont tell'em i told you....its a secret.

Will do! Thats much for your kind help.
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Old Thu, Oct-22-2009, 12:50:19 AM   #7
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My ODC average is always about 2 MPG higher than actual (23 vs 21 actual), so don't put a lot of faith in the reading until you've recalibrated the ODC.
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Old Thu, Oct-22-2009, 01:13:17 AM   #8
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Originally Posted by Samon8ive View Post
My ODC average is always about 2 MPG higher than actual (23 vs 21 actual), so don't put a lot of faith in the reading until you've recalibrated the ODC.
I don't know if its accurate. How do u calibrate it?
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Old Thu, Oct-22-2009, 01:13:03 PM   #9
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Count miles and divide by gallons. That is what you are getting. Compare that # to what the OBC is telling you. Find the % difference +-.

Unlock the OBC functions, and adjust the correction factor by the % you calculated.

Example, If the OBC is off by +2%, and calibration # is 1100, subtract 2% of 1100 (22) and enter the new factor 1078

At least I think I remember that correctly.

I think Ron Styger's site www.unofficialbmw.com/e36.html has the procedure, but that is the jest.
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Old Fri, Oct-23-2009, 01:53:17 AM   #10
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Originally Posted by Richardsperry View Post
Count miles and divide by gallons. That is what you are getting. Compare that # to what the OBC is telling you. Find the % difference +-.

Unlock the OBC functions, and adjust the correction factor by the % you calculated.

Example, If the OBC is off by +2%, and calibration # is 1100, subtract 2% of 1100 (22) and enter the new factor 1078

At least I think I remember that correctly.

I think Ron Styger's site www.unofficialbmw.com/e36.html has the procedure, but that is the jest.
Thank you for the helpful information!
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Discussing How do u use the fuel consumption on the OBC in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)