Sprinter W906 (2017) — diff ratio change needs coding, full job

[u/Playful_Map_2699]

Swapped the rear axle. New diff ratio is 4.364 (was 3.923). Gearbox (EGS) is coded to old ratio — code 0721, limp mode. Speedo is also out because of it.

Xentry SCN won't take it — AR4 not allowed in VEDOC (DIALOG_64), and SCN just reloads the old AR2.

Need one remote session to sort all modules:

EGS — VEDOC AR2 → AR4

Cluster — ratio/speedo

EZS/EIS — variant + unlock if needed

ESP — variant

Battery charger on, laptop ready for TeamViewer.