Battery drainng Issues

t4ure4n · 09-06-2023, 09:04 AM

I have BMW X1 2016, which I had bought recently. I had to replace the battery as it was completely flat and jump starting didn't help. I have replaced it with BOSCH same spec battery and also registered it with ISTA+ software.

The issue I am having is that if the car isn't driven for few 2-3 days the battery drains to half confirmed by using a battery tester. After driving the car for few miles, it shows the charge is back to full.

What can i do to confirm what's draining the battery whilst it is parked?

PS. I have used ISTA+ to check error codes and there are two showing up. can these be the reason of battery drain?

2BAD00 - Exhaust gas sensor temperature sensor upstream of diesel particulate filter signal: Open or short to B+
9390DC - Seat belt buckle contact, rear centre, open circuit

mDrive2 · 09-07-2023, 07:31 AM

Hi, this is quite problematic to diagnose. I mean it takes a long time.
This could be an issue - 9390DC - Seat belt buckle contact, rear centre, open circuit
Also, check the standby current with ISTA if this is a real problem. My car shows 80mA.
Good luck with this.

09-06-2023, 09:04 AM	#1
t4ure4n Private First Class 31 Rep 120 Posts Drives: 2016 BMW X3 xdrive 20d Join Date: Jan 2017 Location: London iTrader: (0)	Battery drainng Issues I have BMW X1 2016, which I had bought recently. I had to replace the battery as it was completely flat and jump starting didn't help. I have replaced it with BOSCH same spec battery and also registered it with ISTA+ software. The issue I am having is that if the car isn't driven for few 2-3 days the battery drains to half confirmed by using a battery tester. After driving the car for few miles, it shows the charge is back to full. What can i do to confirm what's draining the battery whilst it is parked? PS. I have used ISTA+ to check error codes and there are two showing up. can these be the reason of battery drain? 2BAD00 - Exhaust gas sensor temperature sensor upstream of diesel particulate filter signal: Open or short to B+ 9390DC - Seat belt buckle contact, rear centre, open circuit
	Appreciate 0 Tweet Quote

09-07-2023, 07:31 AM	#2
mDrive2 New Member 3 Rep 17 Posts Drives: x1 Join Date: Oct 2020 Location: Canada iTrader: (0)	Hi, this is quite problematic to diagnose. I mean it takes a long time. This could be an issue - 9390DC - Seat belt buckle contact, rear centre, open circuit Also, check the standby current with ISTA if this is a real problem. My car shows 80mA. Good luck with this. Attached Images
	Appreciate 0 Quote