Transfer case calibration procedure

Burnaby · 09-17-2019, 11:03 AM

Hi fellows,

More than one month ago I drained the fluid and filled fresh BMW fluid. Immediately after that the car started shifting badly. Then I drove for week or two and then calibrated the VTG in ISTA. I noticed the value was 29 before and 0 after, so basically it was reset. That procedure made the shifting smooth and I was very satisfied.
When the procedure was done the average consumption on my dash that was average around 12l per 100km went to 17 on the spot without even starting the engine. Driving for several days made that go down to 14l, but not anymore. Most of you are in US, so the equivalent will be from 19mpg to change to 16.

I think that this is the new normal now for my car, but I was wondering if anyone experienced this after VTG calibration?

F30ed · 09-25-2019, 08:22 PM

I did re-calibration after oil change and adjustment went from -12.5 degrees to 0.0. I did not feel a thing.. No noticeable mpg change.

theboxsaysno · 10-05-2019, 09:43 PM

I also did the calibration after flush using ISTA +. Said my calibration value was 11.1 with an adjustment of -0.1 degrees. I did this all in one step before takingt he car for a test drive. Didn't notice any change in mpg.

Burnaby · 10-18-2019, 11:41 PM

The problem with the fuel consumption is resolved after new pump, thermostat and fresh coolant. The calibration coincided with water pump problem. The fan was running on max most of the time plus very bad shifting I guess limp mode.

Glene · 09-06-2023, 05:38 AM

Replacing the transfer case in the neighbor's 2006 X3 with a used one removed from 2008 X3. After replacement, the vehicle is grinding and popping and not drivable. We believe it needs to be recalibrated. Anyone in the Detroit area (48315) would be able to help us with this? We'll pay for your time.
Thanks,

Glene · 09-09-2023, 06:36 PM

I think that this is the new normal now for my car, but I was wondering if anyone experienced this after VTG calibration?[/QUOTE]

I replaced the transfer case in 2006 X3 with another used transfer case and motor removed from 2008 X3. After replacement, the car makes a loud popping sound when the transfer case engages. Then I reset both transfer case and motor to zero, but problem still exists. Any suggestion?

09-17-2019, 11:03 AM	#1
Burnaby New Member 9 Rep 21 Posts Drives: 2011 X3 F25 N55 Join Date: Jul 2019 Location: Burnaby iTrader: (0)	Transfer case calibration procedure Hi fellows, More than one month ago I drained the fluid and filled fresh BMW fluid. Immediately after that the car started shifting badly. Then I drove for week or two and then calibrated the VTG in ISTA. I noticed the value was 29 before and 0 after, so basically it was reset. That procedure made the shifting smooth and I was very satisfied. When the procedure was done the average consumption on my dash that was average around 12l per 100km went to 17 on the spot without even starting the engine. Driving for several days made that go down to 14l, but not anymore. Most of you are in US, so the equivalent will be from 19mpg to change to 16. I think that this is the new normal now for my car, but I was wondering if anyone experienced this after VTG calibration?
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09-25-2019, 08:22 PM	#2
F30ed Second Lieutenant 71 Rep 230 Posts Drives: F30 328i, X3 35M Join Date: Sep 2015 Location: Chicago iTrader: (0)	I did re-calibration after oil change and adjustment went from -12.5 degrees to 0.0. I did not feel a thing.. No noticeable mpg change.
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10-05-2019, 09:43 PM	#3
theboxsaysno New Member 18 Rep 11 Posts Drives: BMW E36, E38, F25, F30, G05 Join Date: Oct 2019 Location: Cleveland iTrader: (0)	I also did the calibration after flush using ISTA +. Said my calibration value was 11.1 with an adjustment of -0.1 degrees. I did this all in one step before takingt he car for a test drive. Didn't notice any change in mpg.
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10-18-2019, 11:41 PM	#4
Burnaby New Member 9 Rep 21 Posts Drives: 2011 X3 F25 N55 Join Date: Jul 2019 Location: Burnaby iTrader: (0)	The problem with the fuel consumption is resolved after new pump, thermostat and fresh coolant. The calibration coincided with water pump problem. The fan was running on max most of the time plus very bad shifting I guess limp mode.
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09-06-2023, 05:38 AM	#5
Glene First Lieutenant 63 Rep 323 Posts Drives: 335is Join Date: Dec 2018 Location: Michigan iTrader: (0)	Calibration after transfer case replacement Replacing the transfer case in the neighbor's 2006 X3 with a used one removed from 2008 X3. After replacement, the vehicle is grinding and popping and not drivable. We believe it needs to be recalibrated. Anyone in the Detroit area (48315) would be able to help us with this? We'll pay for your time. Thanks,
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09-09-2023, 06:36 PM	#6
Glene First Lieutenant 63 Rep 323 Posts Drives: 335is Join Date: Dec 2018 Location: Michigan iTrader: (0)	I think that this is the new normal now for my car, but I was wondering if anyone experienced this after VTG calibration?[/QUOTE] I replaced the transfer case in 2006 X3 with another used transfer case and motor removed from 2008 X3. After replacement, the car makes a loud popping sound when the transfer case engages. Then I reset both transfer case and motor to zero, but problem still exists. Any suggestion?
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