Do both upper and lower rear lights work, or just the upper ones?
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On mine if selected both upper and lower illuminate together or individually with firmware - V6.02-7044
That's quite strange, nothing has changed in decoding the speed pretty much since it was implemented and I know that it has worked in other E46 M3's. I can take a look at an iBus log to see if I can figure out why it might be coming up with the wrong speed, but can't guarantee anything. It's been quite a while since I last compiled the firmware, with several computer changes along the way, so I'd have to try and remember how to do it!DoubleM wrote: Sun Mar 02, 2025 1:49 pm I want to report an issue with the actual speed (which is also saved in the "latest trips log").
It is way to high (like ~200km/h when the real speed is like 50km/h)
My car is a 2005 E46 M3 (car type setting shall be correct) - may it be, the "Ms" are handling the actual speed differently to the "normal" ones?
Is there any chance to further investigate or even fix this? - I am willing to help with everything I might provide.
You are quite right that flash memory does have a finite number of writes, and eventually some of the bits will fail. From memory I think the flash in the ATMEL CPU in the Intravee was rated at 10,000 cycles which is not a lot, but the amount of information written to the log is not a lot either, certainly many orders of magnitude less than the Tesla logs. The log entry is only written once per journey, off the top of my head I can't remember how many entries there are, but if there were 20, that would be 200,000 journeys worth. Even then some of the data would be the same, so the bit value would not change and thus would not count as a cycle. So I think it's likely to see the car out!DoubleM wrote: Sun Mar 02, 2025 1:49 pm Another question:
Do we need to bother because of additional writings to the Intravees Memory?
Logs and so on, which did not be there in the original version ...just thinking of issues if the maximum write circles are reached and the internal memory might break (see early tesla issues a couple of years before)