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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 05-14-2014, 12:42 PM
Benoit Benoit is offline
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Jump start

I have an 09 328i lately I had to jump start my car Sunday may 11 and again Today Wednesday may 14. Twice in a week don't seem Normal. There is a recall on the battery cable under dash it was taken care of six months ago. Is there a chance might need new battery soon if so what battery you recommend thanks .
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  #2  
Old 05-14-2014, 01:12 PM
ctuna ctuna is online now
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Measure the battery voltage and the alternator

Measure the battery voltage and the alternator
voltage . If you are letting the car sit for long periods of time
or not driving very far a battery tender is suggested for
use with these cars as they are battery hogs.
Any of the major brand battery that matchs or exceeds the specs are fine.
Do not use battery backup when changing especially through the OBD port as it
will blow the fuse for the OBD and instrument cluster.(Fuse 58 or 74 depending on the car)
I have a Interstate MTP49/H8.

Last edited by ctuna; 05-14-2014 at 01:17 PM.
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  #3  
Old 05-14-2014, 01:19 PM
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DSXMachina DSXMachina is offline
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Quote:
Originally Posted by ctuna View Post
Measure the battery voltage and the alternator
voltage . If you are letting the car sit for long periods of time
or not driving very far a battery tender is suggested for
use with these cars as they are battery hogs.
Any of the major brand battery that matchs or exceeds the specs are fine.
Do not use battery backup when changing especially through the OBD port as it
will blow the fuse for the OBD and instrument cluster.(Fuse 58 or 74 depending on the car)
I have a Interstate MTP49/H8.
What he said. It is not rare for a five year old battery to fail depending on its history.
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Old 05-14-2014, 01:22 PM
Benoit Benoit is offline
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Thanks the car don't sit I'm constantly in it. I just stop the car for a few minuets and twich had to get a jump. Also fail to mention I was using an iPhone car charger
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Old 05-15-2014, 11:55 AM
AndrewHA AndrewHA is offline
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make sure you register the battery or it will go flop
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Old 05-15-2014, 01:16 PM
Benoit Benoit is offline
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Thanks how do you register battery
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Old 05-15-2014, 02:47 PM
AndrewHA AndrewHA is offline
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Thanks how do you register battery
You have to go to a dealer... or find someone who has the right tools
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Old 05-15-2014, 02:59 PM
Benoit Benoit is offline
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Thanks again
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Old 05-15-2014, 03:08 PM
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SilverX3 SilverX3 is online now
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5 years old battery fail can be very normal

I replaced mine after 6 years and 25,000km

Non OEM is not that expensive $250 OEM vs $130 non OEM battery BUT YOU MUST get the battery registered by a car electrician (about $50) or weird warning lights may come up
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Last edited by SilverX3; 05-15-2014 at 03:10 PM.
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Old 05-15-2014, 03:21 PM
Benoit Benoit is offline
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Thanks I just saw a you tube video on how to replace the battery: However; the guy said didn't need to register. Why would he say that ?
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Old 05-15-2014, 03:48 PM
AndrewHA AndrewHA is offline
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You don't HAVE to register it, but the car will charge it incorrectly and kill it much quicker than if you would.
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Old 05-15-2014, 03:51 PM
Benoit Benoit is offline
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Thanks that's why I like Bimmerfest you get a better answer than a you tube video
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Old 05-15-2014, 05:33 PM
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Originally Posted by Benoit View Post
Thanks I just saw a you tube video on how to replace the battery: However; the guy said didn't need to register. Why would he say that ?
you don't have to at your own risk

Many electronic parts of E9x are very voltage sensitive (eg. ABS Module, electronic steering wheel lock etc.) and not registering you risk these parts to play up and the car may not deliver correct voltage to these parts
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Old 05-15-2014, 07:33 PM
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CALWATERBOY CALWATERBOY is offline
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Now look, Benoit, if your'e going to do it, do it right: View & Do

Always register a new battery - even if identical replacement, new battery charges somewhat differently than worn out unit. You can do it, or Indy can do it, or - oink! - dealer can do it.
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Old 05-16-2014, 06:32 AM
fdriller9 fdriller9 is offline
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Battery registration is NOT about power delivery. It's about extending battery life.

When you register a battery, it logs mileage, resets the charging profile, and stores a reference at 80% charge.

The car actively monitors the battery's condition via the IBS sensor. Based on readings from this sensor, the DME will vary idle and alternator output so the battery can recover quickly from a discharge. It also prevents over charging the battery.

When the engine is running, the alternator is supplying the majority of the current all the modules in the car need. It's also supplying over 12 volts so current consumption should actually go down when the engine is running vs when it's off. The sole purpose of the battery is to supply power with the engine off and to start the engine. Other than that, it doesn't do much.

Unless you were having issues when you took the old battery out, you shouldn't have too many problems without registering.

However, with that being said, it's always recommended to register the battery to extend it's performance and life.
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Last edited by fdriller9; 05-16-2014 at 06:34 AM.
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