Car won't turn on! HELP!!!

Ssgohan434 · 10-04-2012, 02:39 AM

My 08 e92 M3 has been acting weird lately. It's needed a jump start a few days ago and I took it for a nice 30 min drive to recharge the battery after. 2 days later the battery died again and I got a jump start from my neighbor. This morning the car wouldn't start again and I tried getting a jump start, but that didn't work either. The car just goes "click" once and won't start. & I don't believe it's the battery as all the ignition stuff works and the headlights are able to be turned on. Please help??

ClutchThese · 10-04-2012, 02:49 AM

Lights can still turn on even with a low battery. I would suggest taking the battery somewhere and replacing it. They can also test the battery if you have time for that. If a battery doesn't solvethe problem, look into an alternator. But, since you were able to drive for 30 min, i would think the alternator is fine.

SenorFunkyPants · 10-04-2012, 03:10 AM

The battery is probably knackered - go for an OEM or OEM pattern replacement.
You may well have to have a BMW dealer to code in the replacement...at least you would in the UK (don't know in the USA) as we use an energy recovery system that requires a particular type of battery that can take a high recharge rate - the battery monitor system also accounts for loss of battery efficiency with time, which requires a reset (recode) when a new battery is fitted.

ole85 · 10-04-2012, 03:48 AM

starter motor

Mike Benvo · 10-04-2012, 06:26 AM

New battery.

Either that or something is wrong with the alternator/IBS system.

9 times out of 10 - battery.

nbennettksu · 10-04-2012, 07:31 AM

battery.

THE TECH · 10-04-2012, 08:42 AM

+3 on the battery.

FYI it takes a lot more juice to crank a motor than to run the headlights.

schnell325 · 10-04-2012, 10:18 AM

And I don't think a 30 minute drive would help much recharging the battery if she's already failing.

THE TECH · 10-04-2012, 10:24 AM

Quote:

Originally Posted by schnell325

And I don't think a 30 minute drive would help much recharging the battery if she's already failing.

This is correct.

Nuke818 · 10-04-2012, 12:09 PM

Definitely the battery but if your unsure its the battery take it somewhere and have them check out how many amps its putting out. Chances are its probably around 2 or 3 and should be putting out double digits. I just had the same thing happen to me on a non BMW I got the oil changed and when the battery was tested it was putting out 3 amps. Decided not to change not to change it. Two days later went to start the car and it wouldn't start. Everything else would come on.

robbiedawg · 10-04-2012, 12:17 PM

if it's the original battery,it's time.my 08 got a new one last spring.

turn out the lights,the party's over....

catherinelam · 10-05-2012, 07:10 AM

I had the same problem with my e90! my lights and radio were on but it didn't start so it's your battery !!

Ssgohan434 · 10-05-2012, 10:37 PM

Hooked up the jumper cables for 5 mins or so and was able to start the car right up today. So it likely is the battery dying from the short trips I normally take. Hooked up the car to a CTEK 7002 to possible charge & recondition the battery.

10-04-2012, 02:39 AM	#1
Ssgohan434 Private Drives: 350z Join Date: Jul 2011 Location: Washington Posts: 63 iTrader: (0)	Car won't turn on! HELP!!! My 08 e92 M3 has been acting weird lately. It's needed a jump start a few days ago and I took it for a nice 30 min drive to recharge the battery after. 2 days later the battery died again and I got a jump start from my neighbor. This morning the car wouldn't start again and I tried getting a jump start, but that didn't work either. The car just goes "click" once and won't start. & I don't believe it's the battery as all the ignition stuff works and the headlights are able to be turned on. Please help??
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10-04-2012, 02:49 AM	#2
ClutchThese Private Drives: 2008 BMW M3 Join Date: Oct 2011 Location: Amerikuh Posts: 72 iTrader: (0)	Lights can still turn on even with a low battery. I would suggest taking the battery somewhere and replacing it. They can also test the battery if you have time for that. If a battery doesn't solvethe problem, look into an alternator. But, since you were able to drive for 30 min, i would think the alternator is fine. __________________ Gamer \| Modder?StealthyGaming

10-04-2012, 03:10 AM	#3
SenorFunkyPants Major Drives: E92 DCT M3 Join Date: Mar 2009 Location: UK Posts: 1,316 iTrader: (0)	The battery is probably knackered - go for an OEM or OEM pattern replacement. You may well have to have a BMW dealer to code in the replacement...at least you would in the UK (don't know in the USA) as we use an energy recovery system that requires a particular type of battery that can take a high recharge rate - the battery monitor system also accounts for loss of battery efficiency with time, which requires a reset (recode) when a new battery is fitted. __________________

10-04-2012, 06:26 AM	#5
Mike Benvo BimmerPost Supporting Vendor Drives: BPMSport M3 / 7 Series Join Date: Apr 2008 Location: SoCal Posts: 3,210 iTrader: (6)	New battery. Either that or something is wrong with the alternator/IBS system. 9 times out of 10 - battery. __________________ -----\| Like us on Facebook \| Instagram \|\| Tuning Information \| Remote Coding \|----- ----Visit us at www.BPMSport.com - Emotion. Driven. \| Toll Free: (888) 557-5133----

10-04-2012, 08:42 AM	#7
THE TECH BimmerPost Supporting Vendor Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas Posts: 11,919 iTrader: (39)	+3 on the battery. FYI it takes a lot more juice to crank a motor than to run the headlights. __________________ Check us out on Facebook at BPMsportLabs

10-04-2012, 03:48 AM	#4
ole85 Second Lieutenant Drives: e92 m3/ Ferrari360 Join Date: Apr 2010 Location: melbourne Posts: 208 iTrader: (0)	starter motor

10-04-2012, 10:18 AM	#8
schnell325 Bored at work.... Drives: '08 M3,'11 335xi Join Date: Aug 2007 Location: BC Posts: 3,400 iTrader: (5)	And I don't think a 30 minute drive would help much recharging the battery if she's already failing. __________________ 2008 SG E92 M3 6MT AA Stage 2 w/ Meth 2011 SG E90 335xi 6MT 2007 SG E70 X5 4.8is

10-04-2012, 12:09 PM	#10
Nuke818 Private First Class Drives: 2013 E92 M3 Join Date: Sep 2012 Location: Tucson, AZ Posts: 101 iTrader: (0)	Definitely the battery but if your unsure its the battery take it somewhere and have them check out how many amps its putting out. Chances are its probably around 2 or 3 and should be putting out double digits. I just had the same thing happen to me on a non BMW I got the oil changed and when the battery was tested it was putting out 3 amps. Decided not to change not to change it. Two days later went to start the car and it wouldn't start. Everything else would come on. __________________ 2013 E92 M3 Space Grey/Fox Red Novillo

10-04-2012, 12:17 PM	#11
robbiedawg First Lieutenant Drives: 2008 ib e90 m3, 1995 acura nsx Join Date: Jan 2012 Location: chapel hill, nc Posts: 353 iTrader: (0) Garage List 2008 BMW M3 [0.00] 1995 ACURA NSX-T [0.00]	if it's the original battery,it's time.my 08 got a new one last spring. turn out the lights,the party's over.... Last edited by robbiedawg; 10-04-2012 at 01:18 PM.

10-05-2012, 07:10 AM	#12
catherinelam Captain Drives: E90 Join Date: Sep 2012 Location: Montreal, Canada Posts: 698 iTrader: (0)	I had the same problem with my e90! my lights and radio were on but it didn't start so it's your battery !!

10-05-2012, 10:37 PM	#13
Ssgohan434 Private Drives: 350z Join Date: Jul 2011 Location: Washington Posts: 63 iTrader: (0)	Hooked up the jumper cables for 5 mins or so and was able to start the car right up today. So it likely is the battery dying from the short trips I normally take. Hooked up the car to a CTEK 7002 to possible charge & recondition the battery.

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