WHY do we need gateway to read Mercedes W164 EIS?

[Tronics]

Hello,
I tried to read EIS (Mercedes W164 2006 model ML350) with AVDI (abrites) on bench. I could not. They told me that I need a gateway to read the EIS of this model on bench. Why do I need a gateway on W164 and not on W204? Is lt because ZGW ( Zentrales Gateway) and Body Control Modules are separate in this specific model?

Thank you

[Room]

Hi.
W164 EIS use low speed CAN (83,3 Kb/c), but standart diagnostic use high speed CAN (500 Kb/c)

[Tronics]

Other MB models use higher speed CAN, that is why we do not need gateway to read their EIS on bench?

[Room]

Other MB models use higher speed CAN, that is why we do not need gateway to read their EIS on bench?

Yes, you are right.

[droidwayne65]

Depends on the tool used. Some can poll the EIS directly, in an effort to determine comm speed used.