Whats the battery discharge fix? *UPDATE*

[SCardamon]

Originally Posted by rh71

Did you do it with the dealer? How much is it with battery & registration included? Think I saw 1 person mention $500. Or did you skip registration after doing it on your own?

I went to GetBMWParts.com and got thier price for my battery (2007 4.8i) and it was 210. My dealer was 269 and they came down to 230 for me. The battery registration was only 60$.

Here is the catch though, if you already have an AGM battery you only have to register (if you have a black battery). If you have a white battery that means you have the older battery which is a lower capacity and a full programming woulld be needed so the proper recharge is promoted by the vehicle as it was explained to me, this would mean more $$ due to more time on the deck.

Check to see if you have an AGM already, and see if the parts dept will work with you on a price match. The mark up is high in most places to they should.

Good luck!

[1024X5]

Originally Posted by SCardamon

I went to GetBMWParts.com and got thier price for my battery (2007 4.8i) and it was 210. My dealer was 269 and they came down to 230 for me. The battery registration was only 60$.

Here is the catch though, if you already have an AGM battery you only have to register (if you have a black battery). If you have a white battery that means you have the older battery which is a lower capacity and a full programming woulld be needed so the proper recharge is promoted by the vehicle as it was explained to me, this would mean more $$ due to more time on the deck.

Check to see if you have an AGM already, and see if the parts dept will work with you on a price match. The mark up is high in most places to they should.

Good luck!

Yes they had to register the battery and they put in a NAPA 8449 but I can't find out what kind of battery that is online. 900 CCA
They had the car hooked up to the oscilloscope and were working on the alarm was the last update yesterday. They said they were giving my money back for the battery.

[ard]

OP.

There is no "one fix" for your reported issue. You can search for weeks here, or listen to a few people replying and you will find that the issue has many potential causes and as a result you are getting varied suggestions for your symptoms.

Without knowing precisely what has been done- diagnostics, no the very short and cryptic data you've supplied- it is impossible to give good guidance.

The root causes can be traced to a few items:
1. BMW uses 'intelligent charging'...decisions about how much power should be drawn from the alternator are done as you drive. Short trips do not allow the system to charge adequately.
2. There are MANY modules that 'hang' on the car's electrical bus which can create current draws. These do NOT turn off when you turn off the key. They can also turn on and off hours after you leave the car- AND can turn on other modules.


BMW has published a work instruction for dealers to completely test for these parasitic drains...it involves hooking the car to a current monitor that logs current draws and times. This does NOT fit into the usual "bring the car in, inspect, diagnose, repair, move to the next car" practice most techs like to follow.

My 2 cents

[SCardamon]

Good to hear! Hopefully this gets worked out swiftly for you.

[jeep]

Do you leave the car unlocked when in garage? That was causing the battery to drain in my case. It seems the self leveling suspension and/or adaptive drive along with other electrical components remain active unless you lock the car, thus draining the battery.

[enjoytheride]

I have a Oct 09 35d sport inovations first reg Mar 2010. Had a small waco compressor fridge running (auto cut of for low voltage) After a year started to get the high battery discarge, read the forums so used a fully auto ctec charger 2 twice a week for another six months. For some weeks the car may only travel 3 km in a day then will travel 300km. Discussed with dealer and realised they don't really know the problem with this and blame the fridge. Solution replaced the BMW battery with a century battery $200.00 took out the plastic compartment over the battery, lots of room there, inslalled a solinoid and second deep cycle battery inc cables etc and battery $300.00 also switch to enable both batteries if required (2nd batter becomes a booster battery for the start) Fridge now has 24/7 power feed. Never had re setting of computer or whatever they do with change of battery. Voltage test when engine running has always show 14.5 volts even after short or long running. Vehicle serviced by dealer and no comment made about extra battery. No problems since, have cold drinks during our hot summer when doing trips regularly (have covered 73,000 km) and haven't had to mess about with the dealer and never had to use the 2nd battery as a booster yet and no high discharge warning..............

[moe325]

Had a problem with HIGH DRAINAGE and it turned out to be a bridge on the rear fuse box done by a certain fool who claims to be a PROGRAMMING GURU with all these Chinese Cracks of the OPPS. He bridged it to get extra voltage when scanning the car and didnt undo it,killed 4 batteries in a week

worth a look

[1024X5]

Tks,
The X has been at the dealer for for 4 working days and they're still reprogramming and testing modules. I don't care how long it takes but I hope they cure the issue.

[moe325]

A PERSONAL THOUGHT ABOUT THE STEALERS:THEY MAkE THEIR MONY ON LABOUR AND LABOUR IS TIME.

ALL THE BEST

[JimS X5d]

This is a article posted by my BMW dealership about battery maintenance

BMW Battery Care