When did you replace the battery?

AWF10M5 · 11-22-2018, 02:04 AM

I have a 13 M5 with the original battery for the last 5 years. Car driven everyday.

recently I noticed sometimes if you sit in the car with engine off but everything on within 15-20 min the car will show a battery discharge message and then will take a long time to start up after cranking and failing (2-3 times) along with the following issues

No sound
Drivetrain malfunction
No steering
No lights
The heat/ac only blow low speed

Another restart all errors go away and the steering back. Sometimes sound takes a few hours to come back.

I think my battery needs replacement. Did anyone have similar issues when the battery dying

mrtt · 11-22-2018, 01:01 PM

check your battery with multimeter?

Chauncey.Bishop · 11-22-2018, 06:16 PM

5 years sounds about correct for a battery replacement. I just replaced mine and the car is four years old. Look into your car's secret menu so you can see voltage with the car off and voltage with the car on. Those two things will tell you everything you need to know about your battery's life.

11-22-2018, 02:04 AM	#1
AWF10M5 Banned 224 Rep 553 Posts Drives: f10 m5 Join Date: Dec 2016 Location: Bikini bottom iTrader: (7)	I have a 13 M5 with the original battery for the last 5 years. Car driven everyday. recently I noticed sometimes if you sit in the car with engine off but everything on within 15-20 min the car will show a battery discharge message and then will take a long time to start up after cranking and failing (2-3 times) along with the following issues No sound Drivetrain malfunction No steering No lights The heat/ac only blow low speed Another restart all errors go away and the steering back. Sometimes sound takes a few hours to come back. I think my battery needs replacement. Did anyone have similar issues when the battery dying
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11-22-2018, 01:01 PM	#2
mrtt Private First Class 38 Rep 179 Posts Drives: E46/E60/E92/F10/E55 Join Date: Jan 2013 Location: Jersey iTrader: (1)	check your battery with multimeter?
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11-22-2018, 06:16 PM	#3
Chauncey.Bishop Big girls don't cry. 125 Rep 506 Posts Drives: E46 M3 Join Date: Sep 2010 Location: Chicago, IL iTrader: (5)	5 years sounds about correct for a battery replacement. I just replaced mine and the car is four years old. Look into your car's secret menu so you can see voltage with the car off and voltage with the car on. Those two things will tell you everything you need to know about your battery's life. __________________ 2003 E46 M3 COUPE - With "bolt-ons"
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