Looking to buy another v70/xc70 and wonder if anyone knows what is schedule /mileage for service maintenance on transmission, differential, transfer case ?

 

Volvo does not have a oil change interval for diff or angle gear. The angle gear/transfer case does not have a drain plug. Oil has to be sucked out of the filler plug.

Transmission fluid is only recommended for taxis or car s used to tow stuff frequently, and then it's every 52,500 miles.

Of course many of us change those fluids - but it's up to the individual. Personally I drain and fill my older xc70 trans every 3rd oil change or so, have never changed the diff (i have in other cars like my older M3 with limited slip) and have changed angle gear fluid - usually during trans replacement!