bmw 530e mains power too low - FIXED

Please watch: "how to test a mosfet with digital multimeter on a bmw dme with msd80 ecu. "
530e g30 has a problem with mains power too low. After checking the obvious wall charger or bmw charger you come to the realisation that the fault is not in the infrastructure but in your bmw charging port. The control unit that looks after the bmw hybrid charging goes wrong sometimes and here is how we fix the no charging problem.

Disclaimer - This video is information only. For all high voltage issues on your own vehicle please consult a professional and under no circumstances ever work on any part of the high voltage system of any vehicle without prior training and experience!

[odrlmc]

Champion! Nice to see your not afraid to take on the hybrids!

[Roller_blind]

Great video and very informative.
My car has developed a similar fault, I noticed that the A/C was not cooling and when i tried to charge that evening i got an unable to charge error. Is it just a coincidence or are both faults connected? My car is a 2019 530e. I am hoping to get as much info myself before sending the car to a garage.
Appreciate if you have any feedback.

[enicola]

Is it module also the responsible to charge de 12v battery?
By the way, Great video, thanks for sharing it

[Respectt]

Hello, one question if you don't mind. I have a 2018 530e and it has a problem with the “autopilot” lane keep assist like many people have. I read on a forum that all I have to do is disconnect the batteries to reboot the system and it works properly again. So if I disconnect the 12v battery and the high voltage battery clip for about 30 minutes and reconnect, will I have any problems? errors on the dashboard? Thank you very much

[asrokg]

Hello! just the day before yesterday I experienced the same thing. the diagnosis says that the kle is broken. before I change it I would like to know where this ground cable is located, and possibly can the old unit be repaired? does it have inside fuses that can be changed?

[anilb]

Hi mate I have a 330e saying battery not being charged is it due to this same issue ?

[LH]

I would like to have an opinion on this matter,
Model BMW 530e 2017 7.4kw/h net battery capacity,
In February 2024 was diagnosed with two bad cells, number 3 and 2. BMW service(Italy) decided to replace the two bad cell with two newer ones. Total cost was around 2k € and a 2 year warranty.
Now when I fully charge the car it shows to charge around 8.5 or 8.8 kw/h. How is it even possibile? When I got the car new it was showing maximum 7.7kw/h. Before February it was charging around 5.2kwh.
My question is, how it’s possible to have a bigger battery capacity from just two newer cell?

[TheBronx_]

I just got similar error. Except it’s “unable to charge” instead of “power too low”. BMW diagnostics say it’s the Aux Heater. Another effect is the cabin heater not working so makes sense.

Is the aux heater a coding job too or plug and play, do you know?

[AricWalker-vpye]

Hi, I have 18’ 530e. There’s a high pitch when in ev mode only in drive/reverse. Is this sound normal. (It’s not the Acoustic pedestrian protection sound)

[arnaldomiranda]

I have bmw 330e 2022 that have 4:57 a code high voltage battery crash masege serius crash and the other one is high voltage battery swich contractor, swich of after A permanent ? I can help me with this ?

[ajmalbegzad]

Hello sir
I’ve got a bmw 530e 2018 phev
The car was written off with a minor damage but airbag deployed.
The car starts but it won’t charge the 12v battery and after few minutes of running it will go off .
Please can you tell me what could be the problem ?
Is it the safety box inside the battery pack or could be something else?
Thanks
Please waiting for reply.
Thanks

[mariuszlaszlobucin]

hi, I don't speak English, I translated it, I also have a question, if you don't mind, I bought a damaged 530e 2022, I put everything in mostly, I try to charge it and it doesn't charge, the car has only 13 miles

[berkayasln]

Hi sir i have bmw g30e 2018and i have same problem.I live in Finland Tampere.What I gonna do can you help me pls

[raulnyc]

hello, i have "unable to charge error", i change the kle with a new unit and the error persist but the car is charge and run perfect. When the car is connected to wall charger the error is gone.

[carraw]

I had same problem with my 2018 530e. Those KLE are garbage