Hi their, i specialise in Volkswagen transporter vans t5 2003-2009 for customers.

When i change mileage through obd port does dashboard no problem, when i try to the ecu through obd. it reads it, then i write the mileage. takes a while goes through the procedure and then when finished reads it and its the same miles from before.

Is their another computer out their what can maybe do ecu correction through obd port for t5 transporters?

Maybe my digiprog3 is broke? its a clone but does lots of dashboards

Thanks, really appreciate it