I have the car almost 2 years (2006 model with 90000 klm)
Change my battery 1 year after i buy it with Bosch S5A15 AGM because the previous owner has it 6 years.
Τhe reason I changed it , was because each 2 or 3 days without moving the car High battery drain appear to Idrive.
After one week the same ....until now , that every single day the same problem....scan the car....no specific problems except error 5002 at egs the last days.....strange error for me because i see it first time.
Change the SMG relay ( only the black one ) without luck....
3 days after a strange sound start from my gearbox...... like a grinding
only the time i start move the car!! Steady sound only with gear engage .I can hear it at low revs only because the exhaust sound .
I have an audio clip that i record and the sound is clear from 00:02 until 00:09.
I have icom to check everything if needed .
I dont think the warning message is similar with smg problem ( just timing i believe) but with this complex car we have everything is possible!!
Voltage regulator is new
My only thought is the Gsm alarm that i have and the current during sleeping time of the car
The techincal characteristics
Maximum current draw in idle mode 10 mA
Maximum current draw in operational mode 1,5 A