|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
chasing of e70 battery drain in progress
The alternator is charging but when you stop the car is discharges the battery at ~3 to ~5amps so overnight you have a 50%+ discharged battery. Sometimes the problem happens and sometimes not, I haven't worked out why. I have removed all the CDs so the player can't be doing it, I have deleted all Bluetooth phone connections. I have a TPM malfunction that I can't reset, and perhaps that is keeping the car awake and then it drains battery? Right now I am wondering if I need to disconnect the battery to get the car to give up on the attempted TPM reset which the display continues to say it is doing? IF I do not resolve this soon, I am going to order a low voltage mini amp clamp and go searching, If I need to also get a logging dvm with that I will. Seems these cars like to drain batteries and I must tame the devil. Stupid BMW has built a real complicated beast, which desires to feed the $service department$ |
Sponsored Links | |
|
#2
|
|||
|
|||
Do you have comfort access? I have seen a few posts around describing issues where people say their comfort access handle is hot to the touch and draining the battery, obviously a short of some kind. Just a shot in the dark, here, but if you have CA I would check the handles.
|
#3
|
|||
|
|||
Something should be warm
Quote:
Thinking of coding the comfort access off since I have a Carly for iphone which I believe can do that. |
#4
|
|||
|
|||
Seems short in passenger door, comfort access?
Quote:
I will see if I can code with my Carly and turn off the Comfort stuff, then the drain and warm spot should go away. |
#5
|
|||
|
|||
Comments please, am I right? really?
Status >>> Charged up x5 yety again after work yesterday, this morning I go out and start the car and see again "high battery drain" message. So something is clearly draining the battery as the car should be sleeping.
comments please >>> I conclude that BMW has designed a computer based charging system where the Alternator is not being allowed to charge a low battery on short trips. BMW has network of systems in the car like Bluetooth phone, like comfort system, like entertainment, Like tire pressure monitoring, etc. Any of these can stay awake if they have some problem and then drain the battery overnight. So if one only drives short trips and the X5 system stays awake draining the battery in a short time you have no juice in your battery and the x5 can stand you! If you have a low battery the x5 will go into transmission limp mode ... it makes a big clunk, displays how you transmission and has failed and you should drive careful and seek service .. very scary! With little to no battery juice once you stop the car in this limp mode, you can't even get it out of park to push the car to a safe spot. You need to use a special tool in your tool kit to get the car to neutral. .... do I have this right? |
#6
|
|||
|
|||
Alternator charging the battery and the battery drain are two issues, IMO. There are posts with suggested procedures to seek out the source of the battery drain. Essentially, you take the fuse out of the fuse box, one by one, until you identify the source of the problem. A multi-meter is quite cheap. I just bought one for under $20. With a quick search, you should be able to find posts from people who have already gone through this process. Alternatively, you can ask a dealership to diagnose. It will take a minimum of one hour, likely many more, to do a good job so that will be $$ expensive.
The drain could come from any module but again, the navigation system is a common source. Perhaps you can start from there first. Good luck. |
#7
|
|||
|
|||
He already found the issue- he needs to replace the door handle component. IMO not 'turn it off' via software- DISCONNECT it.
|
#8
|
|||
|
|||
Quote:
Battery drain is a nuisance for a lot of BMW vehicles. Looks like Mercedes does a better job in this area. Wonder why BMW is still lacking here. Sigh. |
#9
|
|||
|
|||
Quote:
Will be very interesting to find out what it is exactly and I will post here! |
#10
|
|||
|
|||
Quote:
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|