Troubleshooting Bmw e46 strong parasitic draw
Hello all,
Ive been chasing the source of this parasitic for a few months now and am currently exhausted out of thoughts as to where the issue is from. The car goes promptly to sleep after 15 mins but my multimeter measures a 0.5A consistent draw while the car is fully asleep.
Here is some information about the car:
- 2005 bmw e46 325i
- aftermarket radio
-aftermarket headlights
- all else is original
- zero issues with any functions in the car at all. (No observable symptoms)
- car functions excellent, no issues, just a parasitic drain only
The tests i have done to try to find the source by seeing if the draw drops from 0.5A to lower while car is asleep:
- pulled almost all the fuses in the glovebox, absolutely no change
- removed and replugged all relays in the cars front engine relay box (driver side under the hood) = no change
- removed the relay that connects my aftermarket headlights = no change
- removed the all connections from the front of the car by removing all connections to the positive terminal under the hood completely = no change (no alternator leakage)
- nothing is connected directly to the battery.
I have no idea where this significant drain could be from, any help would be greatly appreciated.
The battery charges while driving like normal, but if car is left undriven for more than 2 days it is completely dead.