W211 SCN Coding (variant coding) EGS52
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W211 SCN Coding (variant coding) EGS52
Due to a fault in the differential of the W211, I replaced it with a different differential.
As the new differential does not come from the same, but a similar engine variant, the sensor system is now triggering an error message stating "gearbox slip" and the car is entering mechanical emergency mode.
This is a consequence of the fact that my differential gear ratio has now changed from the original 3.46 to 3.67 or 3.27.
I have used the Vediamo 4 to read the code string (SCN coding) of my EGS52 control unit.
Codestring (in decimal, Vediamo use this format):
Codestring (in hex):
Perhaps someone could help me adjust the byte string for the differential gear ratio 3.67 and for 3.27, both, and output this for me?
As the new differential does not come from the same, but a similar engine variant, the sensor system is now triggering an error message stating "gearbox slip" and the car is entering mechanical emergency mode.
This is a consequence of the fact that my differential gear ratio has now changed from the original 3.46 to 3.67 or 3.27.
I have used the Vediamo 4 to read the code string (SCN coding) of my EGS52 control unit.
Codestring (in decimal, Vediamo use this format):
098 103 052 055 010 002 000 002 000 000 006 005 003 004 000 002 001 001 000 000 000 001 000 002 000 002 000 000 027 004 132 013 232 003 232 003 198 007 029 000 024 051
62 67 34 37 0A 02 00 02 00 00 06 05 03 04 00 02 01 01 00 00 00 01 00 02 00 02 00 00 1B 04 84 0D E8 03 E8 03 C6 07 1D 00 18 33
Last edited by tommyde; May 25, 2026 at 04:08 PM.
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From: Orange County, CA
08 E350
Let me take a look tonight. I am pretty sure I know how to do it in Xentry, not sure about Vediamo. Also, I think the cluster will need that value changed as well to show proper speed and calculate distance.
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I would really appreciate any feedback on this.
I don't have Xentry; I only have Vediamo.
I have to say that I have, for now, only a solution for this EGS52, but I’m not 100% sure if it’s correct or if it actually works. When programming things I’m not familiar with right away, I’ve learned to be careful. Because you often only get one chance.
I think there are for EGS52 four bits that need to be changed. Two of these relate to the differential gear ratio, and two to the checksum of the whole bit string.
Further changes may be necessary in the central gateway (CGW) and the instrument cluster (KI). But I haven't looked into it that deeply yet. So these are just assumptions at this point.
I don't have Xentry; I only have Vediamo.
I have to say that I have, for now, only a solution for this EGS52, but I’m not 100% sure if it’s correct or if it actually works. When programming things I’m not familiar with right away, I’ve learned to be careful. Because you often only get one chance.
I think there are for EGS52 four bits that need to be changed. Two of these relate to the differential gear ratio, and two to the checksum of the whole bit string.
Further changes may be necessary in the central gateway (CGW) and the instrument cluster (KI). But I haven't looked into it that deeply yet. So these are just assumptions at this point.
Last edited by tommyde; May 26, 2026 at 12:49 PM.
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Joined: May 2012
Posts: 113
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From: Orange County, CA
08 E350
I have access to this, as seen in the video. I can generate a string and send it over. See if you think that will work. Interesting bit starts at 2:14.
Last edited by gogydm; May 26, 2026 at 01:59 PM.
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From: Spain UTC/GMT +2 hours
W213 All-terrain
Due to a fault in the differential of the W211, I replaced it with a different differential.
As the new differential does not come from the same, but a similar engine variant, the sensor system is now triggering an error message stating "gearbox slip" and the car is entering mechanical emergency mode.
This is a consequence of the fact that my differential gear ratio has now changed from the original 3.46 to 3.67 or 3.27.
I have used the Vediamo 4 to read the code string (SCN coding) of my EGS52 control unit.
Codestring (in decimal, Vediamo use this format):
Codestring (in hex):
Perhaps someone could help me adjust the byte string for the differential gear ratio 3.67 and for 3.27, both, and output this for me?
As the new differential does not come from the same, but a similar engine variant, the sensor system is now triggering an error message stating "gearbox slip" and the car is entering mechanical emergency mode.
This is a consequence of the fact that my differential gear ratio has now changed from the original 3.46 to 3.67 or 3.27.
I have used the Vediamo 4 to read the code string (SCN coding) of my EGS52 control unit.
Codestring (in decimal, Vediamo use this format):
Codestring (in hex):
Perhaps someone could help me adjust the byte string for the differential gear ratio 3.67 and for 3.27, both, and output this for me?
3.67
626734370A0200020000060503040002010100000001000200 0200001B04560EE803E803C6071D00A9A0
626734370A0200020000060503040002010100000001000200 0200001B14560EE803E803C6071D00FD60 with Agility
3,27
626734370A0200020000060503040002010100000001000200 0200001B04C60CE803E803C6071D00B6BD
626734370A0200020000060503040002010100000001000200 0200001B14C60CE803E803C6071D00E27D with Agility
If needed, we can add Mode 'M" as well
Last edited by trigital; May 26, 2026 at 04:37 PM.
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¡Muchas gracias! You’ve confirmed my solution. All 4 bits match. :-)
I’ve applied the solution and, lo and behold, there are no more errors in the memory.
I’ll keep an eye on things, though. Perhaps a change still needs to be made in the cluster and the ESP. Maybe someone has experience of whether this also needs adjusting there when changing the differential.
Perhaps others can use this as a reference if they face the same problem after changing the differential...
Parts for older vehicles are becoming increasingly hard to come by, mainly because there are so many different models (i.e. differential gear ratios).
I’ve applied the solution and, lo and behold, there are no more errors in the memory.
I’ll keep an eye on things, though. Perhaps a change still needs to be made in the cluster and the ESP. Maybe someone has experience of whether this also needs adjusting there when changing the differential.
Perhaps others can use this as a reference if they face the same problem after changing the differential...
Parts for older vehicles are becoming increasingly hard to come by, mainly because there are so many different models (i.e. differential gear ratios).
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Joined: May 2026
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Even though there aren't any errors in the error memory at the moment, I'm still not sure if I need to make any adjustments to the differential gear ratio in the ESP, central gateway, and command cluster.
Does anyone know if something like a differential gear ratio is stored as a variable there? Maybe someone can figure that out from Xentry/DAS?
Does anyone know if something like a differential gear ratio is stored as a variable there? Maybe someone can figure that out from Xentry/DAS?
Last edited by tommyde; May 27, 2026 at 12:36 PM.
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