The Audi A4 is one of the most successful business-class representatives, produced since 2016 in its fifth generation (internal designation B9, and after the facelift - B9.5). This model combines German reliability, modern technology, and sporty character, remaining a flagship in its segment.

Production Years and Facelift

The fifth generation Audi A4 (B9) debuted in 2015, with serial production beginning in 2016. In 2019, the model underwent a planned facelift (B9.5) that brought updated lighting, redesigned radiator grille, new technologies, and revised engines. The current generation is expected to remain in production until 2025.

Body Types and Modifications

The Audi A4 B9 was offered in several body configurations:

Sedan (A4 Limousine) - classic four-door version with elegant design
Wagon (A4 Avant) - more practical version with increased trunk space
Sport version (S4) - with 3.0L V6 TFSI (354 hp) or TDI (347 hp), Quattro all-wheel drive
Long-wheelbase models (A4L) - specially for Chinese market
High-performance RS4 Avant models (based on B9) with 2.9L biturbo V6 (450 hp) belong to a separate lineup.

Bumper Plastic Markings: >PP+EPDM TV20< or >PP/PE+TPO-TD30<

Front Bumper Removal

  1. Open hood

  2. Remove hood release lever (press latch and pull up)

  3. Remove trim above radiator grille (held by clips, pull up)

  4. Under trim, unscrew four screws securing top of bumper

  5. From underside, remove screws (can be done with or without underbody protection)

  6. Turn wheels to side

  7. In wheel arches, remove three screws per side securing fender liners

  8. Remove one push-pin per side (inserted bottom-up) securing corners to fenders

  9. Move fender liners aside and remove one screw per side inside fenders

  10. Release clips in fenders (pull corners toward you)

  11. With assistant, pull bumper forward (watch for wiring)

  12. Disconnect electrical connectors

Front bumper mounting locations Audi A4 B9 (2016–2025)

Audi A4 B9 (2016–2025) Front Bumper Mounting Diagram

Rear Bumper Removal

⇒Useful tips on how to remove the bumper and not break anything.⇐

  1. Open trunk

  2. Remove trim near taillights (held by clips)

  3. Under trim, remove two screws per side and remove taillights

  4. Below taillights, remove two locating pins (pry with flathead and pull up)

  5. In trunk, remove side panel covers and rear panel trim

  6. From trunk, remove four nuts (don't drop into cavities)

  7. From underside, remove two (four) screws and two nuts

  8. In wheel arches, remove two screws per side securing rear fender liners

  9. Release clips in fenders (pull bumper corners toward you)

  10. Release clips under taillights

  11. With assistant, carefully pull bumper rearward (watch wiring)

  12. Disconnect parking sensor connectors

mounting locations of the rear bumper Audi A4 B9 (2016–2025)

rear bumper mounting diagram Audi A4 B9 (2016–2025)

mounting locations of the rear light Audi A4 B9 (2016–2025)

Technical Features

The fifth generation uses MLB Evo modular platform (shared with Q7 and A8), reducing weight and improving rigidity.

Engines:
Gasoline: 1.4 TFSI (150 hp) to 3.0 TFSI (354 hp in S4)
Diesel: 2.0 TDI (150-204 hp) and 3.0 TDI (up to 347 hp in S4 TDI)
Hybrid (A4 TFSI e) added after facelift

Transmissions:
6-speed manual (base models)
7-speed S tronic dual-clutch
8-speed Tiptronic automatic (high-power versions)

Drivetrain:
Front-wheel drive (FrontTrak) or Quattro all-wheel drive

Interior Tech:
Digital Virtual Cockpit, MMI infotainment with touch control (post-facelift), driver assistance systems

Interesting Facts
Nearly identical exterior dimensions to previous generation despite new platform
First S4 with diesel engine (more powerful than previous gen gasoline)
Hybrid only available after facelift
Premium Bang & Olufsen 3D audio system optional
Allroad version shares same platform

Conclusion
The Audi A4 B9/B9.5 remains a business sedan benchmark, successfully combining dynamics, comfort and technology. Still relevant in 2024, it will continue to please enthusiasts until the next generation arrives in 2025. An excellent choice in its class.