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This cannot be re-programmed to use with another car in case anyone was wondering.

I don't have a REX but I've read of a few others who state just to Pull The Fuse that powers the REX so it does not come on. You will get an error message that you will have to live with but that's about it. I don't know which fuse it is though.

When it is "On" there is a draw on the power so the voltage reading will drop. But it SHOULD read the same at the terminals and the cig lighter port. Really looks like the cig lighter volt meter is not functioning properly.

"all weather" are not "snow" tires. "All weather" tires are fine but they still get rock hard in cold weather, which is why I use Blizzaks for the winter as they stay relatively soft and pliable in the cold. But they will wear out super-fast in warm weather.

Registering the battery does nothing. Nothing. The last 12v I installed where I registered the battery showed a lower voltage when "ON" (maybe 14.2) for awhile and then gradually went up to 14.8 where it is now. If you are going to measure the voltage of the 12v at the battery terminals...

They require the doors to be LOCKED while driving in order to pass Crash Tests in the USA. This will vary depending on the Country though. I am going to guess that the option to enable/disable/change this is tied to the VIN of your car.

Under resting voltage, mine will show 12.4 because there is an accessory draw on the 12v when you unlock and open the doors to activate the power ports. If you measured the voltage at the battery terminals without the car in accessory mode, you would find the voltage to be higher, closer to...

I would try some other way to measure the voltage than with a cheap cig lighter adapter volt meter then. Maybe just get a different one. The one you have could be bad. I have one plugged in just for reference and when the car is ON and ready to drive it shows 14.4-14.9 volts. Also try...

When the 12v battery fails, it self-discharges over time at rate that increases. The HV battery comes on to try to maintain the 12v battery above 12.0 volts. I've documented this on my 2017 with a Bluetooth 12v battery monitor. It started out slowly but increased over 2 weeks until I just...

1: What year is the car? 2: You should not have put a lead on the 12v to "charge" it. The car will maintain the charge of the 12v even if it is sitting for days. If the 12v is discharging to the point it needs to be manually recharged, it is failing/failed OR you have some other part of the...

This is probably the rain sensor adapter cable you are looking for. Kind of pricy on its own. Also it seems to be out of stock at the moment. I bought a cheap dash cam from AliExpress and it came with the cable adapter already. They are available separately but I don't have a link to one.

You need to get the DIRECT LINK to the image that usually ends in .JPG You are trying to link to a web page. I'm not familiar with the web host or app you are using so I can't tell you how to make it work there. I can see the photos if I open them in a new window though. I use www.IMGUR.com...

Except in your case, your wife did not put the car in PARK. She left it in DRIVE mode.

My 2017 does exactly the same thing. It sounds to me as if you are trying to find a way to blame BMW for the accident by assuming the electrically engaged parking brake should work the same way as an old manually engaged parking brake.

I see the pics just fine in my web browser

It is not possible. You charge to 100%. This question comes up all the time.

by "PreCondition" are you referring to Climatizing the Cabin with the heater/air conditioning? This can be done on-demand. or Pre-Conditioning the HV Battery pack? This must be scheduled a MINIMUM of 3hrs in advance of a Departure Time.

You will have less range with the 2015 vs the 2017 as the 2014-2016 have the 22kWh/60ah battery and the 2017-2018 have the 33kWh/94ah battery. I think the price was lower on the link you posted because it just looks so grubby inside and they didn't bother cleaning it at all.

What is the ambient temperature where this is located? My 2017 will get maybe 80 miles max when it is 20F outside. If the car has been sitting awhile and not driven much, that affects the "Guess-O-Meter" range. If the car sat "ON" with the heater or A/C going for some extended period of...

In the States, this is what a Tow Dolly looks like: