Starting problem using Foxwell, or from the ignition switch

[andrewwynn]

They might be referring to emergency braking where the abs system takes over when it detects a rapid brake pressure rise eg. Fast hit rub the brakes. It happened to me once when I quickly hit the brakes for deer. I didn't hit the brakes add hard as I could have so the abs took over and maximized my stopping power. It also blew out my rear brake lines so there's that.

[workingonit]

Originally Posted by StephenVA

Then there is the old Foxwell "Braking Dynamic Error Code". No dynamic braking with E53 so why show a code?
The unit works well but as mentioned, when voltage drops below 10V all bets are off

Are you referring to the "BD" code that I received many times on my Foxwell, then went away never to return? It was under KOMBI codes, along with a "D7", but that one, too, went away later on its' own.

from another thread https://xoutpost.com/bmw-sav-forums/...s-present.html

Originally Posted by workingonit

I've mentioned that I've got two "always present" fault codes that won't clear. My Foxwell shows them as:
Attachment 81924 actual fault names, undisclosed

So, I've been researching about what the Foxwell letter codes BD & D7 actually mean. I found no reference to them in any Foxwell or (limited) BMW info I have (not even a Bentley), but I did find info via the internet, on various BMW enthusiast sites. The most useful reference to those letter codes was found in some notes I had compiled prior to even getting the X5. I had a list of what I called "KOMBI codes".

Where I found it originally, I don't know when, or where, or from whom. It does agree with another list I found on Bimmerfest:https://www.bimmerfest.com/threads/instrument-cluster-fault-codes.1369463/post-13259319

Using that list (and the BMW abbreviations list from https://bmwsections.com/info/abbreviations.php, I did more searching, decided that : BD Electronic brake power on my list actually referred to Electronic Brake force proportioning, and found this thread https://xoutpost.com/bmw-sav-forums/...ebv-fault.html right here on XO.

As far as they could tell, and I tend to agree, it's a phantom, since I have no brake light lit up on my dash.