Audi’s EA839 V6 Died After 47,000 Miles, And The Teardown Shows Why

The EA839 V6 Has Plenty Of Fans, But Reliability Questions PersistAudi’s EA839 3.0-liter turbo V6 is widely used across the VW Group vehicles. You’ll see it in everything from the Audi S4 and S5 to the SQ5, A6, A7, Q7, Q8, and even some Porsche Cayennes. It has a good reputation for those who want an engine with plenty of tuning potential.However, this force-inducted V6 mill’s reliability isn’t exactly spotless. Piston failures and oil-guzzling are common, as are scored cylinder walls and cooling-system headaches. The EA839 has even landed in the spotlight over water pump issues, with a lawsuit thrown in for good measure.Case in point: a 2021 Audi S4 with only 47,000 miles made it through the shop of our favorite engine coroner, I Do …