MY 2018, T3 1.5 geartronic

Hi everyone,

i recently took ownership of a 2018 T3, 1.5 geartronic.
the car currently has 88k kM (55k miles)

the car was serviced regularly at a private garage and i took to a Volvo specialist
and had all fluids and filters replaced (engine oil, break fluid, fuel, air and pollen + atf fluid) - all Volvo original parts.

i also fitted 4 new Michelin pilot sports (16 inch wheels) and had the wheels aligned.

coming from a decade of Tsi manual transmission vehicles im a bit overwhelmed by the fuel consumption, but reading previous posts, I see that it’s a common issue.

my 1st question refers to automatic gear shifts(6 speed aisin-warner); in low rev city driving up shifts between 2nd and 3rd are a bit jerky whilst if I were at mid-range to high revs then it’s much smoother.
i can also feel the downshifts when decelerating - the garage found nothing wrong mechanically and scanning the ecu brought up no faults. Gear/engine mounts as well the driveshafts were given the all clear as well - but I still expected smoother shifts - any ideas?

my 2nd question is regarding vibrations coming from body/floor of the car at around 55-65 mph whilst accelerating Which I thought the new tires + high speed alignment would rectify, but it didn’t.


TIA