[Solved] Mercedes W211 (2008) E-Class Battery Error - Not Charging, New Batteries & Alternator Issues

Hello!
The patient is a Mercedes e-class w211 from 2008 and the battery error on the display means that it does not charge. The topic of the battery under the hood (the small one) has been replaced with a new one, but the topic has not disappeared, even the rear one is new (not the gut, just selected by parameters and both) and nothing. I plugged the computer but not MB STAR, only a substitute is known and shows such errors (photo). There is a BSG battery control module next to the battery and I wonder if this device complicates something, I will add that the alternator is checked and even regenerated, or more precisely, bought after regeneration with a guarantee. Could this module be damaged???
I will say that if I connect it to the cables from the second fired car, the errors go to delete and the message goes out. What I noticed after connecting the ammeter, the initial consumption is almost 15A after a while it drops and is around 0.6A.
I checked if there is an additional heater, but this model does not.

The module does not see the charging from the alternator, the other errors are the effect of the energy saving mode. Check the auxiliary battery relay.

http://www.mercedesmedic.com/battery-protecti...ons-temporarily-unavailable-meaning-solution/

Check if the car is not affected by the recall: 2005060008.

Also check out this thread: https://mbworld.org/forums/e-class-w211/61397...battery-visit-workshop-codes-9091-9051-a.html

one relay is on the plastic housing of the pit and it turns on the circuit, I don't know where the other one is but probably in the fuse box. the voltage on both batteries is 12.2 after firing and drops during operation ... maybe something is wrong with this alternator I have to check it myself.

Don't be deceived, there is no replacement battery or even a voltage regulator in this model.
you bought merc, pay it.

Give chassis number. is sbc...

Thanks colleagues for your interest in the topic and hints, I close the topic because the solution came with knowledge, I checked the alternator in my own way and it turned out that the replacement was not the one for this car. There are two types of regulators and one has a voltage to excite and the other does not. After replacing it with the correct regulator, everything works as it should. It was error 9055 about the lack of voltage at the terminal that prompted me to check the alternator itself, even though it was from the IC network and it was selected by VIN numbers ... Regards, and to the next one!