Electronic Brake-Force Distribution (EBV) fault
 

Electronic Brake-Force Distribution (EBV) fault
Hi,

On a 2005 X5 4.4 sports both DIS and INPA report diagnostic fault in Electronic Brake-Force Distribution (EBV). No warning lights show up in the dash, car performs fine as far as I can feel and there're no other fault codes stored. The EBV fault always come back after being cleared and driving the car for a while.

The interesting thing is that DIS reports that the fault is not relevant to the software version of the EBV control unit, but then recommends to continue troubleshooting in the running-gear control system. I could not find such a system in DIS to verify if this is indeed not really a fault.

Also interesting is that DIS always reports that the model series for which the instrument cluster was coded could not be identified and this can result in false readings. I've re-coded it via Progman but still get same report from DIS.

Now, does the EBV control unit need a software update? I tried to do that via Progman but no such control unit is listed for the car.

Appreciate any ideas on what exactly is the issue here if indeed their any. Or is this by design as probably indicated by the DIS report? Anyone with similar diagnostic report? I'm trying to avoid going to dealer who'll surely charge an arm and a leg for any daignostics verifications.

Thanks!

After a bit of research it sounds like the system had a "hiccup". A code must occur 5 times in a cycle in order for the driver to be alerted. I'd clear the codes and make a mental note of the code. If i the future it comes back that is when I would further investigate.

ECS Tuning

That's what I've been doing and it keeps coming back. However, no warning lights. Any one with INPA or DIS seeing anything similar with their X5?

Yep same here I clear it every time :(

Now that's interesting. Do you also get the DIS note that the model series for which the instrument cluster was coded couldn't be identified? I've recoded it to no avail- keeps coming back with the warning. Other than that warning everything's working perfectly.

I get the exact same thing. I keep clearing it, testing it, doing all that is possible with the DIS, and it shows up every damn time. Can't seem to figure out what this is. No errors on cluster either.

I get the same thing using BMW Scanner 1.4

i have the same error too now. is the a EBV valve somewhere in our X5s?
has anyone done any suspension work recently before they were getting this error?

No it seems like an e53 glitch. Every single person gets this when we connect DIS. We only connected it to 3 e53s, but everyone got it.

Haha Me too! Same error. I've been ingoring it for a year now... It would be nice if we can figure out what the heck it is...

wow thats strange, i am running DIS v44. this only started in the last week for me and i have been running DIS for 3-6 months now... very odd.

I think I'm running the latest version... I can't remember...V5.2 or 5.7?

there are couple lines in the car programming for the BFD:

BFD_AX_REF_SCHWELLE
wert_01
BFD_AX_REF_SCHWELLE_2
wert_01
BFD_HYSTERESE
wert_01
BRAKE_FORCE
aktiv
BRAKE_FORCE_2
aktiv
BFD_MINDEST_GESCHW
wert_01
BFD_OPTION
aktiv
BFD_STUFE_2_MAX_EIN
wert_01
BFD_STUFE_2_VERZOEG
wert_01

Could it be that some programming options might need tweaking??

I am getting this, car just went almost 800 miles round trip to L.A. flawlessly based on what I am reading I can disregard?

http://i20.photobucket.com/albums/b2...psdaa56702.jpg

I always have the EBD fault in my scans as well, I heard it was just an E53 glitch, no other error lights.

Cool, how about the servotronic?

I also have the EBD error every time I scan my 2006 E53 X5 with DIS. I also noticed that my front wheels have excessive stopping force. Sometimes when the street is wet my ABS activates sometime. Also when I'm turning and braking with speed on wet or dry street conditions.

2 SOLUTIONS for Electronic Brake-Force Distribution (EBV)
 

Its been a long time since anyone posted here but here goes the solution... i had the same error for 3 years on my 4.8is and finally i have found two solutions:
- you could replace part #34526777435 (this is for my car, it will be different number for some models) which is kinda expensive (even used one). It is a Longitudinal and Lateral Acceleration Sensor.
- or you could do what i did. Load KOBMI module into your NCS Expert and edit CAN_EBV value from AKTIV to NICHT_AKTIV. From that point your car will think this unit is not installed and no error will be displayed ever again.
And how to do that? There is a lot of info on Youtube so I am not getting into details on that. Just Google "Where to get NCS Expert", "how to use NCS Expert" and youll get there eventually. Also you will need an ODB2 cable from eBay or Amazon.

And what is this sensor actually for? Well, in extreme situation if your car starts sliding sideways and you apply brakes this sensor will provide data for "brake force distribution" in order to try to help you to regain control of the vehicle. So since your unit is not going to do its job anyways because it is giving you error, you can just tell the car to not look at it at all. Or, now when you know what it does and how to fix it, you can change this sensor. In my car it is located below central console and radio, on the floor of the car.

Great post, thank you! I've grappled with this issue for years and years. I'll investigate replacing that sensor.

Found the sensor at FCPEuro for $190 Bosch OEM. Cheapest from the dealer is $543 at thebmwminipartstore.com.

https://www.fcpeuro.com/products?utf...ds=34526777435+

https://thebmwminipartstore.com/part...&siteid=218365

And here're the instructions for replacing it on my 2005 4.4. https://www.newtis.info/tisv2/a/en/e...onents/ERnob4W

I'll go for the Bosch from FCPEuro since they have life-time replacement. From the product description it sounds like this is an important safety component, hence I'd rather replace it than code it out:

Product Details
This sensor works in conjunction with the steering system to detect when the vehicle is going sideways and allows the traction control system to engage.

Ok, found another post referring to the same fix as suggested here. Replacing the sensor is not a proven fix. I'd hate to replace it in vain. This issue may just be a glitch in the E53. A faulty yaw sensor results the abs triangle light showing on the dash, at least per my online searches. You get a clear indication there's an issue if that sensor is faulty.

https://www.bimmerforums.com/forum/s...on-(EBV)-fault

Thank you for this comprehensive reply. i will investigate this myself and report back...

Good stuff. I just started noticing this fault code as well. I'm just going to ignore. No CEL's, no performance issues, no problem.

Any progress on this issue? I have had it on my x5 since I bought it 3 years ago. It’s the last error that shows up on my scanner and it really niggles me that I can’t get rid of it.

I'm yet to replace the Yaw Sensor (also called Rotational Speed Sensor) for Dynamic Stability Control (DSC), but EBV can be coded out as discussed in prior posts. The EBV error may be a false positive if the brake warning light is not illuminated in the instrument cluster:
https://www.newtis.info/tisv2/a/en/e...l-high/XZBFZNZ

For anyone else investigating this, it looks like indeed this may be a false positive error since replacing the yaw sensor does not seem to get rid of the error. Refer to post https://xoutpost.com/bmw-sav-forums/...-sensor-6.html

#34526777435 Longitudinal and Lateral Acceleration Sensor is not the same as the yaw sensor?
Why can't I find them on tis? Do they have a code, like B...?
Looks like this yaw sensor is in the rear of the center console
https://youtu.be/cE9xlvvpt2w

I'm getting this braking force distribution error as well .
Even if I clear it, it comes right back, without me even starting the car
https://i.ibb.co/zVSdDMz/20210425-001642.jpg

Look for B75 (rpm rate sensor) in newtis... ;)

Thanks!
So many names it's confusing...

B75 Angular rate sensor
Aka
Longitudinal and Lateral Acceleration
Aka
Yaw sensor
Aka
rpm rate sensor
Aka
Speed sensor
Aka
Accelerator sensor

https://i.ibb.co/W2rBvqf/Screenshot-...551-Chrome.jpg https://i.ibb.co/0Fs3xb3/Screenshot-...744-Chrome.jpg

Alright I tried 3 different sensors, the error doesn't go away!

I'm not shocked. You've provided yet another data point that the issue is not that expensive sensor... see post https://xoutpost.com/bmw-sav-forums/...-sensor-6.html

Do I read the whole thing or just page 6 like on your link?
I'm not sure I understood what's the conversation about exactly. Is the abs module causing the error?

No, they had other issues that was fixed by replacing the yaw sensor but the EBV error stayed. In INPA you can look at all the sensors in real time and look at the yaw. You should see the yaw reading >0 output indicating all is good despite the EBV error.

I see, nobody figured a cause yet.

The yaw sensor is displayed in DCS module
It's called rotation rate, mine is jumping between 0.0 and 0.1
https://i.ibb.co/LZX4h6K/20210502-175746.jpg
If I touch it, the value start moving like crazy.

Now while I was playing around and trying 4 different sensors, I lost access to the main module DSC57
https://i.ibb.co/SmYCY68/20210502-181451.jpg

Careful you don't end up zapping the electronics. Why are you desperately trying to replace it? Have you done your due diligence to read this current thread in its entirety? You may also want to read https://cartechnology.co.uk/showthre...0371#pid140371. It's short.

Oh I'm not trying to replace it, I just wanted to figure out this error and how to fix it. It looks like since this car was released, nobody figured this error.
I've read this thread in its entirety and maybe another 5-10 threads. Everyone is talking about either the speed sensor or coding the option from active to inactive.
So looks like the speed sensor doesn't fix it.
And I don't want to code it out, because that doesn't fix anything. I'm curious to find out that is causing this error.
I have not seen this UK thread you linked to.
I've read it now and it's kind of a mishmash of stuff and very short. No solution and no follow up.
The only thing I read that was interesting is
YAW sensor neither speed sensor triggers a EBV code.Usually it's caused by right rear wheel harness, check for nasty corrosion there. Quite common for E53.
This is something I can investigate, although it's still kind of broad. Again there was no follow up, so it's hard to tell what was meant by that harness. Is he referring to the wheel well under the fender?
Other than that, in all threads I've read so far, the only successful option was to change the sensor from active to inactive.
But that doesn't solve the problem. Just like putting some electrical tape over the check engine light :rofl:

Oh, got it. Sounds like you're approaching the end of the EBV error tunnel that many have ventured into in the past :D. Just as a heads-up: there's a sign at the end of that tunnel that says in bold letters "Just fugghetaboutit! ...:bustingup

+1

Note: Only found on later models E53?

Yes, I think '03+ year models.

This speed sensor?
My X5 is 2002

No solution in sight.. I coded it out with ncs expert!
If anyone manages to fix it, post the solution here please