replace battery

Asked by Oct 22, 2012 at 11:51 AM about the 2005 BMW X5 4.4i

Question type: Maintenance & Repair

just replaced battery and after car sits for a couple of days battery is drained. what could be the cause??

8 Answers

3,295

You might have an alternator issue. If the battery is not getting recharged having driven the vehicle for a decent amount of time, and them sitting, then this could well be the issue. If it is not the alternator, then something else in the system could be causing a drain. Start simple and work your way out.

2 of 2 people found this helpful.
245

You have a power draw on electrical system, being that it's an x5 it could be anything.you need to attach a meter to the battery and measure the amperage ur r losing. This is tricky as u need to do this after the control units have all shut down whis is about 15 minutes.The tricky part is that u cannot open any doors or hood or trunk lid, as it will awaken the body control module and will trhow off your reading.measure reading between battery negative post and negative cable, with negative cable disconnected.check the reading, if more than 50 mA than u have to start removing fuses ti see if the reading changes(drops).That will be the circuit you start with to see what component is causing the draw. Good luck, BMWs electrical is not an easy task. Be careful what you tap into, some of the wiring contains fibre optics for the SRS system. In other words take it to the dealer

1 of 1 people found this helpful.
Best Answer
325

take the Car into to your nearest dealership trying to fix this yourself will only create expensive issues, which will inevitably have to be resolved by the said Dealership

3,295

Forget the dealer. A competent local shop is a better way to go, especially when you are out of warranty. $180/hr vs. $80 is a no brainer.

325

I work for a BMW dealership. competent local shops generate most of the Expensive issues I was relating too in my original post

4,625

I agree with Ronald a independent shop will not have the knowledge to find the issue. Battery drains get very complex fast. Most of them that I see in your model end up being a control module staying awake and most of the modules in said vehicle need to be programmed which can only be done by a dealer so why not do it all at the same place. Hope this helps good luck.

325

have you resolved your issues ?

10

Have the same issue - check the bluetooth inside the car - have the dealer check - know several folks with equal problem (myself, too). Bluetooth was draining the battery, went w/o notice.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • replace battery 8 answers

    just replaced battery and after car sits for a couple of days battery is drained. what could be the cause??

    2005 BMW X5 4.4i

    -

    Maintenance & Repair

  • How to reset the Computer code after disconnect / replace the battery 9 answers

    Hi Guys, Battery ran flat in my BMW x 5 4.8is after I left the key on about 4-5 hrs, some interior lights were on and CD Player was on. is that usual? or is it look like my battery has come to end of...

    2004 BMW X5 4.8is

    -

    Maintenance & Repair

  • how to replace X5 kidney grile? 2 answers

    just purchased an '08 X5 4.8i and would like to replace the existing kidney grille with a black set ... any advice/instructions?

    2008 BMW X5 4.8i

    -

    Maintenance & Repair

  • How to Change the Battery on a BMW X5 5 answers

    When your BMW X5 vehicle won't start, the battery is probably dead. You can jump-start the vehicle with jumper cables or you can just replace the battery. If you want to change the battery you won't f...

    2005 BMW X5 4.8is

    -

    Maintenance & Repair

  • change of battery 1 answer

    It looks I need a new battery for my BMW X5. I am aware how sensitive their electrics are, that is I am concerned how to go about changing the battery and not damaging ECU and resetting the system! ...

    2006 BMW X5 3.0i

    -

    Maintenance & Repair

X5

Looking for a Used X5 in your area?

CarGurus has 15,030 nationwide X5 listings starting at $1,499.

ZIP:

Search BMW X5 Questions

BMW X5 Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,640
#2 Robert Charlson
Robert Charlson
Reputation 690
#3 Asiamah6910
Asiamah6910
Reputation 550
View All

Related Models For Sale

Used BMW X3
324 Great Deals out of 12,947 listings starting at $2,500
Used BMW 5 Series
478 Great Deals out of 16,530 listings starting at $2,000
Used BMW 3 Series
1,033 Great Deals out of 31,548 listings starting at $975
Used Mercedes-Benz M-Class
216 Great Deals out of 5,706 listings starting at $1,500
Used Jeep Grand Cherokee
1,097 Great Deals out of 73,573 listings starting at $1,200
Used Porsche Cayenne
115 Great Deals out of 5,078 listings starting at $3,999
Used BMW 7 Series
162 Great Deals out of 6,161 listings starting at $2,740
Used Acura MDX
302 Great Deals out of 17,807 listings starting at $1,900
Used Mercedes-Benz GL-Class
179 Great Deals out of 3,803 listings starting at $7,499
Used Land Rover Range Rover Sport
163 Great Deals out of 5,952 listings starting at $7,995
Used Land Rover Range Rover
116 Great Deals out of 4,842 listings starting at $2,500

Used Cars For Sale

2017 BMW X5 For Sale
40 Great Deals out of 6,834 listings starting at $47,401
2016 BMW X5 For Sale
10 Great Deals out of 464 listings starting at $32,800
2015 BMW X5 For Sale
43 Great Deals out of 750 listings starting at $25,995
2014 BMW X5 For Sale
144 Great Deals out of 1,965 listings starting at $25,995
2013 BMW X5 For Sale
54 Great Deals out of 838 listings starting at $15,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.