In quick need of a new BMW E65/E66 battery

[Avenged.SSE 0]

Hi! Been having some trouble with my E66's battery... have had to jump start it twice now, got the alternators checked out... everything appears to be good there. Battery is factory original - car was first registered in December 2004. I'm thinking of getting the battery replaced. Any ideas for a price estimate? I'm also not too sure on the BMW OEM battery vs Aftermarket.

[*Glenn* 854]

It will have probably have the smart system... genuine battery & recode to vehicle after checking for voltage discharge check in sleep mode.. be prepared to have the car in the shop for 1-2 days.

[Avenged.SSE 0]

It will have probably have the smart system... genuine battery & recode to vehicle after checking for voltage discharge check in sleep mode.. be prepared to have the car in the shop for 1-2 days.

Any idea on price estimate?

Cheers

[polley 916]

It will have probably have the smart system... genuine battery & recode to vehicle after checking for voltage discharge check in sleep mode.. be prepared to have the car in the shop for 1-2 days.

Battery's are coded to the car?

[hotwire 352]

I stand to be corrected but I am not aware of the E65 needing coding (up to 04 anyway)

I have replaced batteries in these before without any issues. As Glenn says - to eliminate current draw as the issue - it needs to be monitored in sleep mode.

[Avenged.SSE 0]

I stand to be corrected but I am not aware of the E65 needing coding (up to 04 anyway)

I have replaced batteries in these before without any issues. As Glenn says - to eliminate current draw as the issue - it needs to be monitored in sleep mode.

I'm not sure 100% sure what's going on with the battery, but based on everything I read, I figured it must be the battery needing replacement... here's the story;

First time battery related problems happened... I guess I am at fault, I didn't do much driving, used all the toys, battery recharge icon appeared... AA came and jump started it.

Second time... After the first incident, I drove the car for a bit, then the car sat in the driveway with no usage for 2 weeks (had some issues which I was sorting out with the seller). Took the battery to an auto electrician that recharged it (no battery low warning icon appearing on idrive).

Third time... after the second time, car went to the the mechanic, sat with the mechanic for 2 weeks (he told me the battery was on charge while the car was being worked on) everything was running fine. Then... yesterday, I started up the car in the morning, it went fine.. as I was driving on the motorway, parking brake error, then everything followed. I stopped the car. Battery was dead.

I also remembered that the night before the third battery incident, I flicked on the car locator feature as I got out of the car for pathway lighting (the car locator feature on my remote activates both interior lights and exterior lights). I donno whether this has something to do with it because afaik the car locator features is only supposed to switch on interior lights, maybe the headlights were rewired?

[*Glenn* 854]

Battery's are coded to the car?

Yes... coded (registered) Have a read through this

http://forums.bimmerforums.com/forum/archi.../t-1350359.html