Programming of one transponder key for:
Dodge Sprinter 2003-2006
Mercedes Sprinter 2003-2006
Freight liner Sprinter 2003-2006
By Immobilizer box module, located behind instrument panel cluster.
And cutting the key by the driver side door lock cylinder (if it was replaced, then new key will not turn in the ignition)
If you have start error on your speedometer, this service might not fix your problem.