E70 Battery Replacement - DIY

[brian5]

heizervr6,

You've registered the battery but I wonder you have to code for it too (as you're not using original OEM)? I had read about this need to register + code on some other forum (E90?).

The CAS module has function KLASSE_BATTERIE which is set to 90ah_agm (on my '08 E70 4.8i). I haven't physically checked my battery to see if it matches.

There are Wet Cell standard style of batteries and the newer AGM style of batteries (*_agm).

These settings are available for KLASSE_BATTERIE on E70:
46ah
55ah
70ah
80ah
90ah
110ah
40ah_agm
60ah_agm
70ah_agm
80ah_agm
90ah_agm
105ah_agm
wert_00

[heizervr6]

No coding required in my case as I used the exact same battery that had been previously installed by the dealer. Had I gone with the updated part directly from BMW, yes coding would have been required which is more involved that the above.

[brian5]

Originally Posted by heizervr6

No coding required in my case as I used the exact same battery that had been previously installed by the dealer. Had I gone with the updated part directly from BMW, yes coding would have been required which is more involved that the above.

Yeah, you're right. You should be fine.

I should have worded it more as info for anyone else reading this thread and thinking of replacing their battery...