Anone know what error code 1A04 - Extra electrical heater means? the error is returned when testing the DDE unit using Carsoft 6.5 SP1.
I clear the error and re-read the the control unit to find that it has been cleared. However I have come across this error on a number of occasions when I run diagnostics on its, clearing the error and re-reading the unit always clears the unit.
Would be interested to find out what it is,
Car is a 2002 330d SE Saloon.