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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 06-13-2005, 07:49 PM
rwebbe rwebbe is offline
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Location: Melbourne, FL
 
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Mein Auto: '02 330ci
Angry How Long Did Your Battery Last?

Mine went three years
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  #2  
Old 06-13-2005, 08:06 PM
Adventure Rider Adventure Rider is offline
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Mein Auto: 2004 325Ci
I only just bought my 325, but batteries in general should last about 4 years if you don't run them into the ground by leaving the lights on or something like that. Once run down to a low charge state they are damaged, and everytime they are discharged that way they are damaged a little more - they are not designed to take a deep discharge (below 50-60% charge).

Some batteries will only take one or two of those kinds of discharges, others may take four or five, but it really cuts down on the life of the battery - I had one battery (brand new) go dead in a motorcycle after one deep discharge (alternator went bad in the middle of nowhere on a trip). The smaller the battery, the less abuse it can take.
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  #3  
Old 06-13-2005, 08:09 PM
Mathew Mathew is offline
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Just under three years.
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  #4  
Old 06-13-2005, 11:44 PM
kurichan kurichan is offline
Waiting for the 135i!
Location: San Diego
 
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Mein Auto: 550 Spyder
About 4 years. I've heard that if you let it run down a lot (by not driving it) it can go bad quicker. But if you bought the car new, the battery is covered by warranty!
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  #5  
Old 06-14-2005, 12:10 AM
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SergioK SergioK is online now
Donkeybike?
Location: N35 29.359 W119 32.670
 
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Mein Auto: HP2Sport - R1200GS - F30
Week 16 production of 2000 (105K miles) and still using the original battery. Then again, I know how to not destroy it.
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  #6  
Old 06-14-2005, 01:10 AM
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johnf johnf is online now
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Location: Bremerhaven, Germany
 
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Mein Auto: 1996 318is
Quote:
Originally Posted by rwebbe
Mine went three years
By any chance do you use the car in Florida?



Three years could be about right. Heat can really shorten the life of a battery.
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  #7  
Old 06-14-2005, 05:26 AM
Steve D Steve D is offline
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Location: New Jersey
 
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Posts: 243
Mein Auto: 2000 540i/6sp
I have the original battery with a build date of 11/99 (5 1/2 years) going strong. I fill the cells every year and do an overnight 2-3A charge every few months.

Steve D
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  #8  
Old 06-14-2005, 05:27 AM
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Artslinger Artslinger is offline
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Location: Evanston
 
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Mein Auto: Car
Still have my original battery in the 2001.
I plan on replacing the battery in October before winter hits just to be safe.
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  #9  
Old 06-14-2005, 07:48 AM
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Raffi Raffi is offline
Hi
Location: L.A.
 
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Mein Auto: Frankenstein monster
Quote:
Originally Posted by SergioK
Week 16 production of 2000 (105K miles) and still using the original battery. Then again, I know how to not destroy it.
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  #10  
Old 06-14-2005, 11:27 AM
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Kaz Kaz is offline
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Mein Auto: 01 325iT, 88 M6
Been 4 years now and still going strong, even with occasional abuse, like on Sunday when I left the heater running for quite a while when changing coolant.
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  #11  
Old 06-14-2005, 11:28 AM
Mathew Mathew is offline
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Quote:
Originally Posted by johnf
By any chance do you use the car in Florida?



Three years could be about right. Heat can really shorten the life of a battery.
Yep.
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  #12  
Old 06-14-2005, 11:39 AM
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zentenn zentenn is offline
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Location: Southwest Florida
 
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Mein Auto: 2007 Z4
I live in Fort Myers Fl. and I"ve had several batteries go bad. They seem to last around 3 years max and they go without warning. When I lived in Pa. it seemed to be that the battery would go bad gradually, not all at once like it is here. The last time one went, I had the car turned off for about 30 seconds!

The manual says if you don't put enough highway miles on the car, the battery won't have enough time to charge itself.
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  #13  
Old 06-14-2005, 09:12 PM
dasblack dasblack is offline
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Location: FL
 
Join Date: May 2005
Posts: 12
Mein Auto: '01 330ci
Quote:
Originally Posted by zentenn
I live in Fort Myers Fl. and I"ve had several batteries go bad. They seem to last around 3 years max and they go without warning. When I lived in Pa. it seemed to be that the battery would go bad gradually, not all at once like it is here. The last time one went, I had the car turned off for about 30 seconds!

The manual says if you don't put enough highway miles on the car, the battery won't have enough time to charge itself.
Hey! I'm in Cape Coral
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  #14  
Old 06-15-2005, 01:16 PM
magbarn magbarn is online now
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Location: LA, CA
 
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Mein Auto: '10 335d
A mere 24 months for me. Then again the IHKA bug that completely discharged my battery 3 times probably didn't help too much.
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  #15  
Old 06-15-2005, 01:20 PM
panther_v panther_v is offline
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Location: So Cal
 
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Mein Auto: 99 328i ppsp 02 gs430
after nearly 6 1/2 years of hard work, my battery finally died 2 weeks ago. i think i got my money worth on this oem battery.
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  #16  
Old 06-15-2005, 01:34 PM
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Nick325xiT 5spd Nick325xiT 5spd is offline
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Mein Auto: M3 & 323i/999 KP
The battery in my M3 is going right now.

The 323i seems to be just fine, but I don't know if it was ever repalced.
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  #17  
Old 06-15-2005, 02:00 PM
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Tanning machine Tanning machine is offline
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Location: Washington, D.C.
 
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Mein Auto: 2004 330Cic
Quote:
Originally Posted by magbarn
A mere 24 months for me. Then again the IHKA bug that completely discharged my battery 3 times probably didn't help too much.
About a year for me. I think that caused the problem, at least in part, although not driving it much (<2000/year) didn't help.
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  #18  
Old 06-15-2005, 04:44 PM
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Weaselboy Weaselboy is offline
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Location: USA
 
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Posts: 1,517
Mein Auto: 2014 335i F30 Sedan
I had a 2000 328i and a 2003 330i and the battery in both lasted right at two years. The heat here just kills batteries.
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  #19  
Old 06-15-2005, 08:13 PM
magbarn magbarn is online now
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Location: LA, CA
 
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Posts: 793
Mein Auto: '10 335d
I see alot of the '99 guys chiming in with long battery lives. BMW OEM batteries had a really good rep with the E36 series. Alot of the guys were getting 6+ yrs out of their batteries. I believe the 99-00 model years used similar low-maintenance batteries that allowed you to pop off the caps and refill the distilled water. The newer oem batteries are all the maintenance free sealed crap that has the caps glued. So when the electrolyte dries up you're SOL.
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  #20  
Old 06-16-2005, 07:15 AM
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Shabba Shabba is offline
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Mein Auto: 2006 325i Barrique
Well damn, it sounds like my battery is the Keith Richards of the bunch. My '98 is still using the original (7-98) battery and going strong. When I lived in Georgia, one of my friends had a '99 V-6 Mustang with the original battery in it. He hasn't replaced it as of Tuesday! No secret that I know of to the long life on either battery.
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