Hello Apologies if this is not allowed as i dont own an audi just wondering what to expect on a Q7/Sq7 model from 2015-2019, id like one with around 50-80k miles (or whatever is average for age). is there any timing chains, gaskets etc which need changed soon. i would prefer an engine which has no critical plastic parts but it would be getting serviced appropriately with an oil change every 5k miles . i wouldnt be driving it daily as i have a work van. thought id ask actual drivers of the cars. Thanks for reading Regards Owen