I had that gear on an Iveco Daily as I understand it the speed limiter has to have the ECU reprogrammed, possibly by the Dealer.
The tacho I could ignore for private use but the speed on my pick up was 56 MPH and the elwb van was 65mph which was a pain. It would race up to that , then it was like hitting a wall. At the time many years ago I knew some who drove the same type van down from Scotland showing 100mph on the clock!
Don't know about registered campers with side windows etc. but vans that size have legal speed limits depending on Dual carriageway or Motorway etc. So may be worth checking the legal aspect.
Another point is due to the age of yours any diagnostic equipment will have to comply with:-
** Important - 2018+ model year coverage: **
Please note - some vehicles from the 2018 model year onwards (sold since mid-2017), will have a "
Security GateWay" Module (
SGW). The SGW module limits diagnostic communication to
read-only access, unless the tool can obtain a session-specific access code from Fiat group's servers (which requires an expensive subscription).
This limitation blocks tools from executing commands on the vehicle (e.g. actuations, procedures and even clearing of DTCs).
However, the current generation of SGW can be bypassed, by unplugging the SGW from the car, and connecting an
SGW Bypass Adaptor (available separately) in its place.
Vehicles known to be affected so far include MY2018 500X/Renegade, 500L MCA, Doblo, Giulia/Stelvio.