Volvo FH13 turbo

Hello good morning.
I was sailing here and I have seen that interests interest.
I explain:
I have a Volvo FH13 480 truck and it already has almost 900,000 kilometers and they tell me that you have to change the turbo for caution at 700000 kilometers.
My consultation is that if there is a possibility of knowing if the turbo is to change or if he warns you of the to see. The truck goes perfectly.
Without more I hope you advise me about it.
All the best

I don't know what they are based to advise you to change the turbo for the number of kmts ..... ?? If this is well maintained in terms of lubrication and air filter in due time, I should not have problems, if it is true that with those kmts it could have some wear in bear radial by moving the axis on the side of the turbo from top to bottom; This to be safer, you should measure it with a comparator and know if it is within normal tolerance compared to a new turbo of your same model, but if it is not observed that "dance" too Where you have to take it to check if you no longer give the measure measured in collector, why and decide whether to change it, is my opinion nothing more. Greetings!!