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      12-21-2020, 04:30 AM   #152
bimmerelectric
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Drives: Bmw 330e 2019
Join Date: Dec 2020
Location: euro

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Quote:
Originally Posted by ifr View Post
There is no single answer for this, but for esys coding the gold standard is diag mode with a voltage regulator connected.

Never code DME ECU with the engine running.
SAS etc won't appear except in diagnostic mode/engine running
VIP2 cannot be coded on later I-step except in diag mode

So the best approach is diag mode but then there is increased risk of battery drain and shutoff hence using the voltage regulator/battery charger to be minimise risk.

if I do coding on a 330e should I code with engine running or in diagnostic mode (w/o charger but vehicle fully charged) ?

is diagnostic mode using the high voltage battery ?
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