tune up volvo 2006 s40 on 2006 Volvo S40

I need a tune up to pass inspection. I was wondering what the average price is foe this service.

Asked by for the 2006 Volvo S40
"Tune up" is hard to determine. If you mean spark plug replacement, see the Estimator tool via this link:

https://repairpal.com/estimator?car_type_id=4855

A tune up consists of little more than that with cars of the last decade or more.