Farewell to a Legend: Audi’s Five-Cylinder Nears Its Final Lap

Few engines have shaped Audi’s identity more than the 2.5-liter turbocharged five-cylinder. Its distinct sound, mid-range punch, and spirited character have made it a favorite among enthusiasts. But it looks increasingly certain that this chapter is closing—with the RS 3 expected to be the final Audi to carry it.

• Audi’s CEO, Gernot Döllner, has said that making the five-cylinder compliant with the Euro 7 emissions standard is “not difficult.” 
• But Döllner also noted that what’s difficult is justifying the investment. As he shared with Drive.com, “it’s a question of scale and overall market demand.” Sales of the RS 3 apparently aren’t high enough to warrant the expense of reworking the engine for tougher regulations.
• Euro 7 begins applying to newly launched vehicles in late 2026, but the stricter compliance rules for all cars in EU-7 markets take full effect by November 2027. That’s the deadline by which the five-cylinder’s future becomes highly uncertain. 

A Possible Final Send-Off

Before the end arrives, Audi seems to be preparing something more special. Rumors suggest a track-oriented RS 3 GT variant with sharper aero, upgraded brakes, and probably a boost in performance over current versions. It may serve as a fitting send-off for an engine with so much heritage.

Looking Ahead

Even if the RS 3 goes dark, the five-cylinder’s influence may linger longer in unexpected ways. Volkswagen is reportedly planning to use the engine in a future Golf R special edition, giving fans one final chance to hear what many consider a lost voice. 

For those seeking an Audi with performance DNA, there are still accessible alternatives. The A3 and S3 may not replicate the RS 3’s unique magic, but they continue to carry forward the brand’s commitment to precision, engaging driving dynamics, and that unmistakable Audi spirit.

The five-cylinder’s imminent retirement feels close, but its legacy has already left a lasting impression—and its echo will be felt long after the last unit rolls off the line.