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BMW fuel consumption readout correction in trip computer

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How to correct your BMW trip computer so the fuel consumption readout is exactly the same as your actual. You need to calculate new correction value based on the current estimation and your fuel usage over last hundreds of kilometers. Then you need to enter #BMW instrument cluster #hiddenMenu and input that new correction value into the system.
From now on the estimated fuel consumption in your BMW trip computer should match real world values.
To enter hidden menu you need to press and hold trip reset button for about 10 seconds. First screen called 01.00 should show you last 7 characters of your VIN.
You need to add-up last 5 digits, so for example with characters AB24680 you should calculate 2+4+6+8+0=20. This value (20 in this example) is the lock code to unlock hidden menu.
Now press and hold trip reset button until you see 01.__.
Release the button and the press couple times, until you reach menu index 19.__ with LOCK: ON message.
Press trip reset button to enter lock code (in this example it's 20), wait few seconds for the menu to go back to index 01.__.
Again go to index 19.__, to confirm that there's LOCK: OFF message.
Now navigate to 20.__, where 20.00 should show you your current correction value.
Use trip reset button to enter new correction value the way it's shown in this video.
From now on the estimated fuel consumption in your BMW trip computer should match real world values.
To enter hidden menu you need to press and hold trip reset button for about 10 seconds. First screen called 01.00 should show you last 7 characters of your VIN.
You need to add-up last 5 digits, so for example with characters AB24680 you should calculate 2+4+6+8+0=20. This value (20 in this example) is the lock code to unlock hidden menu.
Now press and hold trip reset button until you see 01.__.
Release the button and the press couple times, until you reach menu index 19.__ with LOCK: ON message.
Press trip reset button to enter lock code (in this example it's 20), wait few seconds for the menu to go back to index 01.__.
Again go to index 19.__, to confirm that there's LOCK: OFF message.
Now navigate to 20.__, where 20.00 should show you your current correction value.
Use trip reset button to enter new correction value the way it's shown in this video.
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