Mercedes-Benz Replacement Battery Cost. The price for a new battery on a Mercedes-Benz will generally range from $280 to $400. However, you can cut the cost of battery replacement by as much as $100 and sometimes even $200 if you opt to do the replacement work yourself. You can generally save by choosing aftermarket batteries over OEM ones. Like I mentioned I did not hook up the camera to car's battery. I'm using BlackVue battery pack which last parking recording up to 20hrs. It's only the radar that I tapped from fuse F59 which is for USBs in the car. After they reset the battery warning I've had no issues so far. But it's very frustrating dealing with BMW these days.

The usual answer from BMW (After you´ve tried to reset the unit with the three button combo - which by the way also works when ignition is off - with comfort entry / key) that you will have to replace the unit - HOWEVER, and here it goes:

As a result, the ABS module is no longer working and needs replacement. Thanks for reporting back, but not all of those warnings have anything to do with the ABS module. The short in the wiring maybe, you're going to need to look deeper. It was a few wires which were burnt. The mechanic replaced most of the wires.
TRANS FAILSAFE PROG is a default setting for a BMW auto transmission when the Engine Control Unit (ECU) detects a transmission problem. It could be a serious problem or something as simple as a discharged battery. TRANS FAILSAFE PROG is a BMW function that only affects vehicles with automatic transmissions. There are many reasons why your BMW battery discharges while stopped. Common discharge causes include faulty IBS (Intelligent Battery Sensors) and old batteries. It may not hold a charge, and an electronic device connected to the 12-volt outlet may be draining power from the battery. Problems with the junction box, DME, DDE, CA module, and OBD2 O89k6. 309 894 705 838 569 439 514 404

bmw f10 replace battery warning reset