How to enter hidden diagnostic menu in #BMW 1-Series (F20) to perform tests and view live data from various sensors. Check needles, indicators, display, sound chime, view coolant and oil temperature, battery voltage, fuel level sensors, read DTC codes od the instrument cluster module, adjust correction factor of the fuel consumption and tank range estimations.

ℹ️ Make sure that doors are closed, turn the ignition on, press and hold trip reset button (in the bottom left corner of the instrument cluster) and keep it pressed until you see #hiddenMenu.
Browse the menu with short presses. Enter and exit submenus with long press.

🔓 To unlock all options, go to menu 01 Identification, submenu 1.10 VIN, and add up 5 last digits of the VIN number. This is your unlock code. Now go to menu 04 Unlock, enter the code, go back to main menu and check if additional options have been unlocked.

ℹ️ This hidden menu tutorial was made in BMW #F20, but the same method should work in other BMW cars from similar time period.

0:00 BMW 1-Series F20
0:15 Entering hidden menu
0:42 Unlock all menu options
2:07 Instrument cluster test
2:35 Engine temperature
3:00 Battery voltage readout
3:15 Sound chime test
3:30 KOMBI DTCs
3:40 Exit the menu

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