I got the wrong carriage. Can I go to carriage 3?
sba-GLIA-to — stress on second syllable. va-GO-ne — stress on second syllable.
When you board the wrong carriage and need to walk through the train to reach your assigned seat.
'Ho sbagliato' (I got wrong/I made a mistake) is passato prossimo of 'sbagliare'. 'Vagone' (carriage). On Italian trains you can walk between carriages during the journey. It is polite to inform the inspector when changing carriages so they know where to find you.
Posso camminare tra i vagoni?
Can I walk between carriages?
Yes — carriages are connected on all Italian trains
Il vagone 3 è in avanti o indietro?
Is carriage 3 forward or back?
Orientation helps before you start walking
Mi sono seduto nel vagone sbagliato per tutto il viaggio!
I sat in the wrong carriage for the whole journey!
Amusing situation if your seat was already taken in the right carriage
Walking between carriages on Italian trains is always permitted during the journey. The connection areas between carriages can be noisy. Each carriage door must be pulled manually on older trains; on high-speed trains they open automatically with a button. Carriage numbers are displayed above the doors at each carriage entrance.