charliedurrant
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- Broadstairs, Kent, UK
"I was kindly directed by Saint as to the ability to display hidden information for the car. There are a number of guides on the web but I thought I would write something with formatting and images"
BMW Engined 2002-2005 Hidden Menus / Functions
Instrument cluster menus
The first set of hidden menus are displayed on the LCD (contained within the instrument cluster) below the rev counter and speedometer.
They menus are by default locked and initially (and after battery disconnection) you have to unlock them.
This is achieved by pressing the buttons on the instrument cluster (one of them is the one you use to reset the mile/km counter)
So, how to unlock the menus!
- Turn the Ignition key to 'off'.
- Press and hold the right button (as shown above) and turn the ignition key to the first position
- You will first see "Check Control OK", some seconds later you will see "Test Nr.01"
Push the left button to see the car's identification number. Add the 5 right numbers (not 6) together and write down that number, you will need it for unlocking all the functions. For example:
A123457 will lead to 2+3+4+5+7 = 21 (note 1 is not included in the sum)
- Push the right button until you see "Test Nr.19"
- Push left button until you see the number that is equal to the one you calculated above
- Push right button again
The menus are now unlocked:
- Turn the Ignition key to 'off'.
- Press and hold the right button and turn the ignition key to the first position.
- You will first see "Check Control OK", some seconds later you will see "Test Nr.01"
- Press the right button to cycle through the tests, then the left button to execute the test:
- Display Car's identification number, HW/SW version, construction date
- Instrument cluster self test. Will light up all lights and run all gauges
- Current consumption (litres/hour)
- Average consumption (litres/100 km)
- Current range
- Remaining fuel in tank. Three sets of numbers: A/B/C. C=total amount.
- Engine RPM / Coolant Temp (C)
- Current Speed (kph)
- System voltage at Term. "R" (Battery Voltage)
- Country/Language (UK, US, Spa, Ger, Jap, etc.)
- Units am/pm
- Average Speed
- ETA
- Date of Software Mask
- Production Diagnosis
- ?
- Display Vehicle Specific Data
- Alarm Changeover (cont. vs. intermittent OBC chime)
- Lock/Unlock
- Correction factor for fuel consumption (nicht ändern!)
- Reset all defect codes
The tests that are particularly useful are:
7 - Coolant temp - this is the actual temp not what the gauge shows. The gauge will stay in the middle if the coolant temp is between 75oC and 113oC !
9 - System voltage
21 - Reset all defect codes - great if you have for example had some parts changed by a garage that have caused faults or the highly common Air Suspension Inactive warning.
References:
