I think our MLT 570's 2x2's are 2.95 high.The 4x4 AWD Sprinter chassis sits 8cm higher at the rear and 10cm at the front than the 2WD version.
Plus the extra height of the tyres:
Standard fit
235/65R16 Tyre Height (Diameter) 28 in 71.2 cm
All Terrain Tyres
245/75R16 Tyre Height (Diameter) 30.5 in 77.4 cm
Difference Tyre Height (Diameter) 2.5 in 6.2 cm
So ... it’s 14.2 cm higher at the rear and 16 cm at the front.
Someone on one the German Hymer Forum measured his and reckoned it to be 3.09m high to the top of folded Sat dish
I may well remove the dish as I can’t see it will get much use. A decent 4G Aerial would be a better use of that bit of roof space which might recover a few cm off the height.
I think it's about 10cm taller than my previous A Class Carthago. The body section on the Carthago was taller than the MLT because it incorporated the double floor, but the MLT sits higher off the ground. Parked on my drive at home, using the fence and house walls as reference points height-wise is doesn't look massively different to the Carthago.
(Although I've had air fitted at the back, so I'm probably over 3m now)
Therefore I suspect yours is more than 3.09
I'd keep the dish, it has it's uses, as you can pick up TV that little bit further into the EU.
It also get people knocking on your door wanting to know what you are filming!
More importantly, your dish will be the biggest on site!