Digital Speed Correction?

theinfamousdrew · 05-30-2021, 05:36 AM

Hey guys,
Has anyone found a way to correct our speedometers?
There are several threads for E90s but I haven't been able to find the correct settings for ours.

My speedo is about 4-5% higher than actual speed.

Here is a thread I was trying to use as a reference...

https://www.e90post.com/forums/showthread.php?t=1696407
https://www.m5board.com/threads/corr...coding.430570/

CatalinP · 05-31-2021, 02:51 AM

You can code it with carly or bimmercode to show gps speed.

theinfamousdrew · 05-31-2021, 04:12 AM

Quote:

Originally Posted by CatalinP

You can code it with carly or bimmercode to show gps speed.

I haven't seen that option. Do you have more info on that?

theinfamousdrew · 06-03-2021, 02:09 PM

Anyone......

CanadianLurker · 06-03-2021, 07:11 PM

Interested as well. Don't mind it being 1-2% high side but 3-4% seems too much.

RED_Y_ · 06-03-2021, 08:36 PM

I swear it used to be on the coding cheat sheet, try do dig in the coding thread but it is definitely possible.

theinfamousdrew · 06-04-2021, 03:59 AM

Quote:

Originally Posted by RED_Y_

I swear it used to be on the coding cheat sheet, try do dig in the coding thread but it is definitely possible.

Yea I thought so too. Apparently not for the F15/F85 though.

RED_Y_ · 06-04-2021, 10:51 AM

It was for F15, I don't use bimmercode but it was possible with E-sys.

RED_Y_ · 10-14-2021, 09:19 PM

theinfamousdrew
Found in this thread:
https://f15.bimmerpost.com/forums/sh....php?t=1553999
According to Maverik259

Quote:

Found it under:
Kombi>3000 Anzeige>BC_V_KORREKTUR
for those that have BimmerCode

MrJayhawk85 · 10-16-2021, 04:02 PM

Well, I coded it last night in my 18 3.5x and it didnt fix it completely. It did help some, my HUD speed is now right at 2mph over what my Garmin reads at 70mph+ which is closer than it was.

///d · 10-18-2021, 07:08 AM

Speedometers are always programmed to read fast from the factory. IIRC its typically 7-11% fast from factory. This is to ensure that the vehicle should not ever be going faster than indicated with changes in tires, pressures, ect.

GPS speed readings are great if you are on straight, flat roads with no tree coverage. As soon as you start getting on hilly or windy roads, your GPS speed will start losing accuracy. GPS Satellites don't realize you're on curves/hills/mountains so it can't compensate for actual road speed, it can only calculate distance covered in X amount of time. If you're going downhill on a 10% grade, your ground speed will be higher than what GPS calculates you at because of your angle of descent.

Now, how much will it be affected? No idea.

CatalinP · 10-18-2021, 08:16 AM

I wander if this correction would also affect the odometer...

lonestar22 · 10-21-2021, 06:17 PM

i'm fine with it reading fast. less likely to be going too fast when i come up on a cop with his radar out.

Autostocks · 04-05-2022, 11:20 AM

Dug this thread up because I rented an X3 for a couple of days and the speedo was 4-5 mph high at highway speeds. Kind of ridiculous. My X5 is 2 mph high, and I've just learned to adjust for it when setting the cruise.

Is this just a BMW thing? I've never seen such a disparity in any other car I've owned. You'd think the Germans would be more precise.

Variante Alta · 04-05-2022, 05:12 PM

Funny, my 2015 F15 35d shows about 6-8 km/ hr lower than actual based on GPS…seems to be unusual and I'd like to fix it. I'll try the suggestion above. When I tried to address the same issue with my F31 I found the speed displayed was lower than what I set with cruise control (in both the cluster and HUD) by 1 km/hr…I didn't love that either. Maybe there's a better way.

05-30-2021, 05:36 AM	#1
theinfamousdrew I'm The Captain Now 503 Rep 1,811 Posts Drives: X5M/X7 Join Date: Sep 2010 Location: Charlotte iTrader: (12) Garage List 2021 BMW X7 MSport ... [0.00] 2018 Raptor [0.00] 2015 X5M (SOLD) [0.00] 2014 BMW M5 (SOLD) [10.00] 2014 BMW M5 Totaled [10.00] 2014 Jeep SRT (SOLD) [0.00] 2012 C63 AMG (SOLD) [0.00] 2015 BMW M4 (SOLD) [0.00] 2011 Porsche Cayenn ... [0.00] 2007 911 Turbo (997 ... [0.00] 2013 335i M Sport ( ... [0.00] 2002 Porsche 911 Tu ... [0.00] 2008 BMW 135i (SOLD) [6.00] 2002 BMW M3 SOLD [10.00]	Digital Speed Correction? Hey guys, Has anyone found a way to correct our speedometers? There are several threads for E90s but I haven't been able to find the correct settings for ours. My speedo is about 4-5% higher than actual speed. Here is a thread I was trying to use as a reference... https://www.e90post.com/forums/showthread.php?t=1696407 https://www.m5board.com/threads/corr...coding.430570/ __________________ Turn on. Tune in. Drop out. IG: @InfamousCarGuy
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05-31-2021, 02:51 AM	#2
CatalinP Major 591 Rep 1,270 Posts Drives: BMW X5 F15 2014 3.0xd Join Date: Aug 2017 Location: RO iTrader: (0)	You can code it with carly or bimmercode to show gps speed.
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06-03-2021, 02:09 PM	#4
theinfamousdrew I'm The Captain Now 503 Rep 1,811 Posts Drives: X5M/X7 Join Date: Sep 2010 Location: Charlotte iTrader: (12) Garage List 2021 BMW X7 MSport ... [0.00] 2018 Raptor [0.00] 2015 X5M (SOLD) [0.00] 2014 BMW M5 (SOLD) [10.00] 2014 BMW M5 Totaled [10.00] 2014 Jeep SRT (SOLD) [0.00] 2012 C63 AMG (SOLD) [0.00] 2015 BMW M4 (SOLD) [0.00] 2011 Porsche Cayenn ... [0.00] 2007 911 Turbo (997 ... [0.00] 2013 335i M Sport ( ... [0.00] 2002 Porsche 911 Tu ... [0.00] 2008 BMW 135i (SOLD) [6.00] 2002 BMW M3 SOLD [10.00]	Anyone...... __________________ Turn on. Tune in. Drop out. IG: @InfamousCarGuy
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06-03-2021, 07:11 PM	#5
CanadianLurker Private First Class 41 Rep 108 Posts Drives: 2018 X5 xDrive35d Join Date: Jan 2019 Location: Toronto, Ontario, Canada iTrader: (0)	Interested as well. Don't mind it being 1-2% high side but 3-4% seems too much.
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06-03-2021, 08:36 PM	#6
RED_Y_ Colonel 1062 Rep 2,520 Posts Drives: 2014 X5 3.5d Join Date: Sep 2017 Location: SF Bay Area iTrader: (0)	I swear it used to be on the coding cheat sheet, try do dig in the coding thread but it is definitely possible.
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		BMW X5 and X6 Forum (F15/F16) > BMW X5 (F15) and BMW X6 (F16) Forum > BMW X5 and X6 (F15/F16) Forum
Digital Speed Correction?

06-04-2021, 10:51 AM	#8
RED_Y_ Colonel 1062 Rep 2,520 Posts Drives: 2014 X5 3.5d Join Date: Sep 2017 Location: SF Bay Area iTrader: (0)	It was for F15, I don't use bimmercode but it was possible with E-sys.
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10-16-2021, 04:02 PM	#10
MrJayhawk85 New Member 4 Rep 27 Posts Drives: 2018 X5 Join Date: Dec 2018 Location: Kansas iTrader: (0)	Well, I coded it last night in my 18 3.5x and it didnt fix it completely. It did help some, my HUD speed is now right at 2mph over what my Garmin reads at 70mph+ which is closer than it was.
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10-18-2021, 07:08 AM	#11
///d Captain 1824 Rep 612 Posts Drives: F15 35d M Sport Join Date: Jan 2017 Location: Minne-snow-ta iTrader: (0)	Speedometers are always programmed to read fast from the factory. IIRC its typically 7-11% fast from factory. This is to ensure that the vehicle should not ever be going faster than indicated with changes in tires, pressures, ect. GPS speed readings are great if you are on straight, flat roads with no tree coverage. As soon as you start getting on hilly or windy roads, your GPS speed will start losing accuracy. GPS Satellites don't realize you're on curves/hills/mountains so it can't compensate for actual road speed, it can only calculate distance covered in X amount of time. If you're going downhill on a 10% grade, your ground speed will be higher than what GPS calculates you at because of your angle of descent. Now, how much will it be affected? No idea.
	Appreciate 0 Quote

10-18-2021, 08:16 AM	#12
CatalinP Major 591 Rep 1,270 Posts Drives: BMW X5 F15 2014 3.0xd Join Date: Aug 2017 Location: RO iTrader: (0)	I wander if this correction would also affect the odometer...
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10-21-2021, 06:17 PM	#13
lonestar22 Ground Clearance? 235 Rep 1,654 Posts Drives: 540i & X5 Join Date: Jul 2009 Location: DFW iTrader: (-1)	i'm fine with it reading fast. less likely to be going too fast when i come up on a cop with his radar out. __________________ E90 330i - E90 335i - E92 335i
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04-05-2022, 11:20 AM	#14
Autostocks New Member 9 Rep 14 Posts Drives: BMW X5d Join Date: Nov 2021 Location: Michigan/Florida iTrader: (0)	Dug this thread up because I rented an X3 for a couple of days and the speedo was 4-5 mph high at highway speeds. Kind of ridiculous. My X5 is 2 mph high, and I've just learned to adjust for it when setting the cruise. Is this just a BMW thing? I've never seen such a disparity in any other car I've owned. You'd think the Germans would be more precise.
	Appreciate 0 Quote

04-05-2022, 05:12 PM	#15
Variante Alta Second Lieutenant 96 Rep 270 Posts Drives: 2015 X5d M Sport Metallic Whit Join Date: Feb 2015 Location: Woodstock, Ontario iTrader: (2)	Funny, my 2015 F15 35d shows about 6-8 km/ hr lower than actual based on GPS…seems to be unusual and I'd like to fix it. I'll try the suggestion above. When I tried to address the same issue with my F31 I found the speed displayed was lower than what I set with cruise control (in both the cluster and HUD) by 1 km/hr…I didn't love that either. Maybe there's a better way.
	Appreciate 0 Quote