W447 V-Class AdBlue Countdown Reset

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  • Thread starterasigur
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I found "Reset SCR Warnszenario", but it says "Security access denied".
I tried another CR41 file, it's still blocked.

Screenshot 2025-12-15 185833
 
DJ Entriegelung 9A
DJ Entriegelung BC

Try finding them. They should unlock access. Don't use XENTRY SMR files.
 
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Or you first need to unlock the SG using a Seed Key Calculator. But this process is complicated.
 
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Thank you, kenaj23, everything is sorted.
I had to use a key generator and insert the seed key.
After running "Reset SCR Warnszenario", only two of the three fault codes were successfully deleted.
I ran Seed Key Generator again, then ran the "Reset SCR Warnszenario" again, after which the last error code was reset and the countdown disappeared.
 
I assume you've resolved the issue, but in my experience, sometimes if the SCR module malfunctions, the countdown doesn't go away even after resetting the SCR. This happened to me once, and the countdown went away after I fixed the problem and drove the car for about 15-20 miles, after which the countdown stopped. Hopefully this helps in the future.
 
If the SCR control unit has active errors, resetting the engine control unit warnings will be unsuccessful. The SCR system components must first be checked. If the system is functioning properly, all warnings will clear automatically. The test takes approximately 15 minutes.
 
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