BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > BIMMERPOST Universal Forums > General BMW News and Cars Discussion
 
Strasse Wheels
Post Reply
 
Thread Tools Search this Thread
      01-02-2009, 05:07 PM   #1
SaudiAdeeb
Registered
1
Rep
4
Posts

 
Drives: 2004 745I
Join Date: Jan 2009
Location: Canada

iTrader: (0)

BMW 7 Battery Life

Happy New Year you guys! Anyways, I have a quick question, you see, I travel overseas a lot, therefore I have to leave my 04 745I in the garage for days, and whenever I come back, my car battery is dead. The most my car battery lasts for is one full week, 7 days – is this normal?

I did went to BMW, told them what’s happening, they replaced the battery and told me to turn off the battery switch thingy located at the back, in the truck, so I did, but still, I’m facing the same problem today, the battery runs out after 7 to 9 days. I know this car has a lot of computer gadgets in it, maybe there is some non-functioning in the electric system, I think it’s sucking to much voltage, no? But before I confront BMW, I want to be sure.

So, how long does your car battery usually lasts for? I mean, I have SL 500 as well, I leave that car in the garage for winter, and start it up every 3 weeks or so, it has no problems starting at all. What’s wrong with my bimmer?
Appreciate 0
      01-02-2009, 06:02 PM   #2
Deda
Major General
Deda's Avatar
Croatia
74
Rep
6,520
Posts

 
Drives: BMW X6 35d
Join Date: Apr 2008
Location: Croatia

iTrader: (0)

thats strange..
Appreciate 0
      01-02-2009, 06:19 PM   #3
nyc328ci
Russian in a Bimmer
nyc328ci's Avatar
United_States
71
Rep
5,025
Posts

 
Drives: E92 335XI
Join Date: Jul 2008
Location: Staten Island NY

iTrader: (3)

Send a message via AIM to nyc328ci
next time you leave, disconnect the whole battery
__________________
2011 E92 335 X-drive Deep sea blue/Red ZSP, ZPP
2013 X6 Deep sea blue Blue/Red ZCW,ZPP,ZPS, Full LED lights, Multi-contour seats
2013 535 X-drive Imperial Blue/Cinnamon, ZDA, ZMP, ZPP, ZTP, Multi-contour seats, Ceramic controls, Premium Hi-Fi
Appreciate 0
      01-02-2009, 06:36 PM   #4
RRGOO7
Colonel
RRGOO7's Avatar
115
Rep
2,446
Posts

 
Drives: GTR
Join Date: Dec 2006
Location: Miami FL

iTrader: (13)

i had an 03 745 and had the same problem. It turned out the lights where you change the seat positions never went out and it kept draining the battery
Appreciate 0
      01-02-2009, 07:44 PM   #5
offthewall
Private
offthewall's Avatar
United_States
1
Rep
95
Posts

 
Drives: 2008 BMW 328xi
Join Date: Oct 2008
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by SaudiAdeeb View Post
Happy New Year you guys! Anyways, I have a quick question, you see, I travel overseas a lot, therefore I have to leave my 04 745I in the garage for days, and whenever I come back, my car battery is dead. The most my car battery lasts for is one full week, 7 days Ė is this normal?

I did went to BMW, told them whatís happening, they replaced the battery and told me to turn off the battery switch thingy located at the back, in the truck, so I did, but still, Iím facing the same problem today, the battery runs out after 7 to 9 days. I know this car has a lot of computer gadgets in it, maybe there is some non-functioning in the electric system, I think itís sucking to much voltage, no? But before I confront BMW, I want to be sure.

So, how long does your car battery usually lasts for? I mean, I have SL 500 as well, I leave that car in the garage for winter, and start it up every 3 weeks or so, it has no problems starting at all. Whatís wrong with my bimmer?
Don't know specifically about the Bimmer, but that seems about right for a modern day automobile. Our RV (a Ford E450) has the same issue. Won't last more than a week or two if left unattended.
__________________
2008 BMW 328xi -- Titanium Silver/Black
2008 JEEP Wrangler Unlimited Sahara -- Black/Gray
2004 VW R32 -- Reflex Silver/Black
2001 VW Passat 4Motion -- Blue/Black
1972 VW Super Beetle Convertible -- Yellow/Black
Appreciate 0
      01-02-2009, 09:52 PM   #6
SaudiAdeeb
Registered
1
Rep
4
Posts

 
Drives: 2004 745I
Join Date: Jan 2009
Location: Canada

iTrader: (0)

Quote:
Originally Posted by nyc328ci View Post
next time you leave, disconnect the whole battery
That’s too much of a hassle, disconnecting and reconnecting the battery, I might as well recharge it every time it went down. I mean, this is BMW, I shouldn’t have to do anything. I’m thinking of selling it soon.
Appreciate 0
      01-02-2009, 10:00 PM   #7
SaudiAdeeb
Registered
1
Rep
4
Posts

 
Drives: 2004 745I
Join Date: Jan 2009
Location: Canada

iTrader: (0)

Quote:
Originally Posted by RRGOO7 View Post
i had an 03 745 and had the same problem. It turned out the lights where you change the seat positions never went out and it kept draining the battery
Exactly! I thought once I turned off the battery switch located at the side of the truck, it would stop all these fancy lights from going on, but it doesnít. The seat position light and where you insert the key, the lights away stay on. I even have heard the cd changer switch or read the disks when car is shut off, itís like the whole car is still alive even when youíre away Ė how do I turn everything off? Itís really stupid, there has to be a way.
Appreciate 0
      01-02-2009, 10:07 PM   #8
SaudiAdeeb
Registered
1
Rep
4
Posts

 
Drives: 2004 745I
Join Date: Jan 2009
Location: Canada

iTrader: (0)

Quote:
Originally Posted by offthewall View Post
Don't know specifically about the Bimmer, but that seems about right for a modern day automobile. Our RV (a Ford E450) has the same issue. Won't last more than a week or two if left unattended.
I know that you can't leave the car off for too long, so I always start the engine of my SL every two to three weeks, it never runs out, and it has smaller battery, unlike the 745I. One week is way too low, itís not acceptable, I mean I had many cars before and I never faced such a problem before. I know I am damaging my 745I by leaving it every week or so, so I canít stand this anymore, unacceptable.
Appreciate 0
      01-03-2009, 02:18 AM   #9
archwerks
Captain
Canada
9
Rep
683
Posts

 
Drives: x6 3.5i VR
Join Date: Jun 2008
Location: canada

iTrader: (0)

BMW batteries are kaput!

Quote:
Originally Posted by SaudiAdeeb View Post
I know that you can't leave the car off for too long, so I always start the engine of my SL every two to three weeks, it never runs out, and it has smaller battery, unlike the 745I. One week is way too low, itís not acceptable, I mean I had many cars before and I never faced such a problem before. I know I am damaging my 745I by leaving it every week or so, so I canít stand this anymore, unacceptable.
Sorry to hear that u have the same problem as many of us w/ x6's. Check out some of the other bimmer posts. I don't think it's a problem restricted to 7's/ yours or mine(x6 xdrive 35i), but many BMW's may have similar issues with battery or power draw issues.
After this xperience,I for one will never buy an electric/hybrid bmw!
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 06:21 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST