Ctek/Bmw Charger

[B21]

There we go, knew there was method to the madness! Equally pleased to hear it doesn't apply to my old nail too, as I've been charging it on the battery..!

I’m just staggered at how complex these cars are..I thought things went high tech when we got capacitor discharge ignition…

Trying to do mods on these cars gets TFD cause so many bits are micro processor controlled and then there are multiple data busses varying signals everywhere..and there’s no documentation

 

[enuff_zed]

I thought you had to use the terminals in the engine bay on E89s due to the BMS module. Charging straight to the battery by passes the BMS module.

You do, but the OP showed photos of his E85 engine bay so I replied in that vein