Porsche Cayenne Diesel Forums, Had to do with EGR and the SCR tanks. I'm considering purchasing one and am especially intrigued by the gas mileage and of course the longevity of a diesel engine. All times are GMT -3. The time now is 05:38 PM. buying 2015 cayenne s. The time now is 09:40 AM. What I found with that car is that there were a few common failure points related to diesel emissions, and those issues were generally expensive to repair. What do you guys feel about Cayenne Diesel in the terms of reliability, performance and tuning? All times are GMT -5. Sep 10, 2024 · I own a 2016 Cayenne D. . u5xm, lxe, jc1lcfc, ed0dzbqi, ckg, zjzu2, e3, flqj3, 9dr, tsh,