Your ride still got warranty or not? If got warranty dont simply go out let other people do, if not later engine got problem they gonna blame u go out do and void warranty.

I believe 70k is still not that high. My family owns an X70 with 120k+ KM mileage. It is still running smooth like new (albeit we just made a claim for a new gearbox). Retain your warranty and talk to your service advisor if you feel your car not performing as it should.

No doubt walnut blasting has been done a long time. But modern engines very rare carbon build up badly (less than 100k mileage la, I can be wrong). Unless you skip or delay oil changes and lenjan the car everyday, then maybe.

Is your car jerking? Or significant performance drop?

Carbon build up in GDI engines will be more serious if your car spends a lot of time in stop and go traffic or short distance travel. There's a thing call Italian Tune Up that will help prevent excessive build up. Some swear by it while others feel its redundant, can learn more about it



@2:55

What problem you're facing that you need to do walnut blasting so early ?

If open up for sure they gonna ask you to do it, is either serious or not. Coz you also need to pay for them to open up the intake also, so it is better to wait until like serious jerking or loss of power then do better. Usually recommend is after warranty ends like 100k check 1 time.