[F32_PiccoloPiccolo]

Hallo everyone,

as my car has the V-MAX removed and a stage 3 optimization, I tested the speed on a track as I was curious if my F32 435i could reach Alpina B4 "figures" or similar.
Everything is great except when I reach the "higher" speeds, the following fault code is thrown:

"DME 1B00A40 Driving Speed, plausibility: Vehicle speed too high".

I attached printscreens from ISTA+. Nothing is triggered within the cockpit (no engine lights or similar). However I noticed this as the car would kind of hang and go no further feeling some sort of a throttle. However as the data shows, all parameters are within range and well safe:

6000 rpm
Engine temp: 95 to 100 degrees

Am I interpreting it correctly if I say DSC is throwing the error? I am sure some of you experts can understand much better than me when checking the ISTA+ printscreens I attached.

I drove that with the DSC ON. This happens when the speed of 275 KM/h is exceeded.
Does BMW have some sort of a "block" at the 275 km/h which could cause this?

Any input, feedback is strongly appreciated.

Thank you in advance.

[darthur90]

The v-max was not removed, instead the value was raised. On my car it is raised to 300 km/h and i had no error when going with 285 km/h. Maybe the guy who modified the vmax value did something wrong.


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[F32_PiccoloPiccolo]

Thanks. I did not think or now the V-MAX could also be "raised". I was convinced it would be removed all together and then chance wants that some models do 5-10 km/h more than others.

[temsky740]

Can u show your cafd from dme ?

[F32_PiccoloPiccolo]

Can u show your cafd from dme ?

Hi, find attached the CAFd structure from DME2 (DME). Please advise if more details about a specific position is needed?

[temsky740]

Put here cafd

[F32_PiccoloPiccolo]

Put here cafd

Here it is, attached. File is zipped.

[temsky740]

In your cafd max speed coded 320km\h.
If we see in ISTA - it speaks about dsc. I advice u to learn cafd dsc carefully about something like speed parametr. May be u will find something there .

[F32_PiccoloPiccolo]

Thank you.
Yes DSC seems the culprit according to ISTA+ but it is the max value of 275 km/h which is somewhat confusing. I asked a tuner if I should test V-MAX with DSC OFF and he said it doesn't matter. When V-MAX is removed completely and properly there is no reason for this to happen as according to him DSC does not play a role in this. I am still not sure if that is so.

[temsky740]

Try to make control plan in ista on this mistake and see what ista will say