Model

Audi A4 vs BMW 3 Series

Premium saloon comparison covering drivetrain risk, refinement, dynamics, quattro assumptions, and used-buy inspection priorities.

Audi A4

68
/ 100

BMW 3-serie

72
/ 100

Best used buy

BMW 3-serie

3 Series for dynamics and slightly stronger score; A4 when exact engine, S tronic, and quattro service proof are excellent.

The 3 Series has the edge as a driver’s used buy, but a clean A4 can be a better ownership choice than a neglected BMW. Exact engine and gearbox matter more than brand preference.

Key differences

  • Audi A4 risk depends heavily on EA888/TDI generation, S tronic history, and quattro type.
  • BMW 3 Series risk depends on engine family, cooling, oil leaks, timing, and ZF service proof.
  • Audi usually feels more refined and secure.
  • BMW usually feels sharper and more balanced.

Buyer advice

  • Confirm Audi engine and gearbox codes before comparing.
  • Check BMW cold start, leaks, and ZF behavior before negotiating.
  • Choose the car with the stronger paper trail and cleaner scan.

Red flags

  • S tronic service gap
  • Timing rattle
  • Olieverbruik
  • Coolant leaks
  • Quattro service assumptions