Thanks guys...
It's a 05/2002 with 117979km (roughly 73308miles), i tested the monitors and both are working but i've never seen this kind of option on a 4.6 or 4.8. the car was brought from germany to Angola as it is and the previous owner only put 15000km on it. Already made a list of preventive maintenance fluids change is a must, than the fun part beguins(chain guides and the Armagedon Crew)...

Any input is more than welcome....