Marco 508 posts · Joined 2017. #8 · Dec 16, 2017. The intent of the air filter is to filter dust, insect, debris, etc. The amount of air fed to the engine is regulated by the butterfly valve which works in tandem with the fuel throttle control valve. The more you press on the gas pedal the more the butterfly valve opens which in turn feeds Rememberwhen people argued with me for saying heretical things like Alfa's are as reliable as Toyotas? Well.. I am crazy but might not be wrong .. Alfa Romeo Stelvio Forum. A forum community dedicated to Alfa Romeo Stelvio owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, 2018Stelvio Quadrifoglio which is still under US warranty (26k miles and purchased May 2019). Ignored by US Customer Care for 3 years. Entire front end and engine removed/opened twice in the last Iagree with you that Alfa's reliability problems are overblown, for the most part. But as for Stellantis as a whole, nope, I can't agree there. Dodge, Jeep, Ram and Chrysler are doing their best in the US market to keep it as low as possible. I wouldn't have bought two Alfa's in the past year if I didn't have confidence in them. AlfaStelvio Filters 1 1 of 24 24 What have you done to your Stelvio today? David P Dec 5, 2018 29 30 31 607 83K 7d ago by matty74 Stelvio spotted cue2 Sep 2, Thereliability of the car also concerns me, even though I only had 1 issue with mine the entire lease (but again, I didn't make it anywhere near 24k - 30k miles on this lease so I don't think my low mileage experience is a good gauge of its reliability). Alfa Romeo Stelvio Forum. A forum community dedicated to Alfa Romeo Stelvio owners Accordingto user forums, Edmunds, 8 Reasons Why The Alfa Romeo Stelvio Is A Gearhead's Dream SUV. 3 An Alfa Romeo 164 Is Now A Collectible. If you have faith that the 2022 Giulio will perform better and that Alfa Romeo has fixed the reliability issues that were so prominent in the previous generation, you might still be out DetectiveDB 34 posts · Joined 2022. #2 · Nov 25, 2022. I looked at the GV70 2.5 Prestige. The sticker was almost equal to the Stelvio. Even though I really preferred the GV70 at the time. I couldn’t bring myself to pay $1500 over sticker when Alfa offered me $8000 off the sticker. It was a no brainer for me. m1v9Yh.