Can't say since I haven't done it on my car yet. As iRage mentioned it could be the ECU resetting and will come back to normal after driving for a while.
Congratulations!
Please post some photos of your purchase.
I have the same model for 6 yrs now.
If you have any problem regarding the vehicle I may be able to help
It would be easy to give an answer if you explain more about your requirements like
Fuel economy
Options
Repairs
Comfort
Purpose of use (for family , long or short trips)