Kinda stumped. Any advice would be great. (electrical)
Senior Members
Joined: Jan 2011
Posts: 2,348
Likes: 3
From: UpState SC
My Ride: 2008 535i LCI with sports/premium package, Sports trans with paddle shifters, CF emblems, JB4 Software, Dinan Exhaust, Navigation, M5Tech body kit, Carbon wrap interrior trim and CIC Controller.
I think its that bumper causing all of your issues...! Ha, I know when I replaced my battery a couple years ago I researched it quite well. Often when I called carious places to ask about a replacement they always said they had it but when I got there it was not quite the same. Always the CCA and CA were a little different. Even when I went to AZ to get it, they said the same thing, or their system did. I finally asked the counter person to see if they had a battery with these exact specs. He left and returned with the battery, install it and every thing has been ok since.
Thread Starter
Senior Members
Joined: Apr 2009
Posts: 1,501
Likes: 0
From: Fremont/ San Francisco Ca
My Ride: 545 modded the F out
I think its that bumper causing all of your issues...! Ha, I know when I replaced my battery a couple years ago I researched it quite well. Often when I called carious places to ask about a replacement they always said they had it but when I got there it was not quite the same. Always the CCA and CA were a little different. Even when I went to AZ to get it, they said the same thing, or their system did. I finally asked the counter person to see if they had a battery with these exact specs. He left and returned with the battery, install it and every thing has been ok since.
Just a warning......... if that voltage runs(spikes ) over 14.8 during running the car your regulator needs to be replaced as any voltage exceeding the 14.8 figure will damage your new AGM battery as well.
Mine was spiking over 15 volts especially in cold weather and caused all kinds of sh%t even screwed up the software over time and had to reprogram whole car.
Mine was spiking over 15 volts especially in cold weather and caused all kinds of sh%t even screwed up the software over time and had to reprogram whole car.
.ordered it last night Should be here on Monday. we'll see 
Last edited by devildawg712; Aug 9, 2013 at 10:06 AM.
Members
Joined: Sep 2011
Posts: 74
Likes: 0
From: United States
My Ride: 535
Model Year: 2010
Are you 100% sure your car was reprogrammed at some point for accepting an AGM battery?? YOu car originall had to have come with a white FLA battery. Just making sure...Also did you try charging the battery from a trickle charger and see if it works better?? Try that.
The other thing you could look into is Steering Angle Sensor.. it might need to be reset or replaced..
The other thing you could look into is Steering Angle Sensor.. it might need to be reset or replaced..
Thread Starter
Senior Members
Joined: Apr 2009
Posts: 1,501
Likes: 0
From: Fremont/ San Francisco Ca
My Ride: 545 modded the F out
Are you 100% sure your car was reprogrammed at some point for accepting an AGM battery?? YOu car originall had to have come with a white FLA battery. Just making sure...Also did you try charging the battery from a trickle charger and see if it works better?? Try that.
The other thing you could look into is Steering Angle Sensor.. it might need to be reset or replaced..
The other thing you could look into is Steering Angle Sensor.. it might need to be reset or replaced..
as he did my programming. Hasn't done me wrong yet so Im sure its to spec. And yes it did come with a white battery. I replaced it unnecessarily back in 08 but the battery was for free form BMW cuz my buddy was an SA there. Nah, I haven't tried using a trickle mainly cuz its new. As in 1 month new. I think I'm going to monitor the voltage as the others have mentioned and take it from there. Thanks for the input.As far as the steering wheel sensor, I hadn't even thought of that. Like i said tho. it happens literally like clockwork after having driven like 20 plus miles. It makes a lot of sense to me that these two fault codes appear as the first ones as the system starts to regulate itself by cutting out the lesser priority items first if electrical issues are involved so I'm really hoping it's just the stupid alternator. 10 years for an alternator seems about right I guess.
Thanks again tho
Last edited by devildawg712; Aug 9, 2013 at 03:46 PM.
Contributors
Joined: Mar 2010
Posts: 3,099
Likes: 5
From: Los Angeles, CA
My Ride: BMW
Model Year: 2006
New Members
Joined: Nov 2012
Posts: 71
Likes: 0
From: USA
My Ride: Na
Yea bro, that's how my car was. Few months ago it didnt started and just time after time it would be a few minutes until it starts. I'd bet $20 it's your "integrated power supply" 20 minute fix. I just bought my part from eBay. Haven't had a issue the past 2 days. $20 it fixes it! Haha
Last edited by Stanley Siringoringo; Aug 9, 2013 at 06:14 PM.
New Members
Joined: Sep 2012
Posts: 477
Likes: 12
From: Halifax, Nova Scotia, Canada
My Ride: 2004 545i+BT+AUX+Coding
Model Year: 2004
Engine: N62
I understand why dealer charges so much for this ........
New Members
Joined: Sep 2012
Posts: 213
Likes: 0
From: Chicago
I know exactly what your fix is. You got to many mods in your headlights. You need to go back to stock. I'll help you. Lets swap headlight assemblies with my stock ones. Your problems will go away. LOL
New Members
Joined: Feb 2013
Posts: 176
Likes: 0
From: Sweden
My Ride: BMW Alpina B5 -05