Audi A4 (B9) Forum

740 topics in this forum

1. Egr valve

   By LEZ, August 12, 2023
   • 0 replies
   • 602 views
   • 
   • LEZ
   • August 12, 2023

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3. 2010 A4 bottom arm issue

   By audiwrecker123, August 11, 2023
   • 4 replies
   • 1.1k views
   • 
   • coupe4
   • August 12, 2023
4. • 

   Alloys 20x9J ET30

   By MCCLOY96, August 11, 2023
   • • 
   • 3 replies
   • 1.4k views
   • 
   • audia4b5kev
   • August 12, 2023
5. • 

   How to remove these marks from silver trim?

   By Mrisir, August 6, 2023
   • • 
   • 14 replies
   • 2.7k views
   • 
   • f1n
   • August 10, 2023
6. • 

   Coolant hose from reservoir to radiator broken HELP

   By figo_rulz11, July 30, 2023
   • • 
   • 11 replies
   • 15.6k views
   • 
   • Steve Q
   • August 8, 2023

7. Help!! fuel flap stuck

   By audi999, August 8, 2023
   • 1 reply
   • 954 views
   • 
   • Anton8
   • August 8, 2023
9. • 

   Humming/droning noise

   By MCCLOY96, August 7, 2023
   • • 
   • 1 reply
   • 3.6k views
   • 
   • Magnet
   • August 7, 2023

10. Parking sensor warning light normal?

    By Mrisir, August 6, 2023
    • 0 replies
    • 494 views
    • 
    • Mrisir
    • August 6, 2023
11. • 

    Fender Popping When Opening Door

    By Ujw, August 3, 2023
    • • 
    • 1 reply
    • 546 views
    • 
    • Steve Q
    • August 4, 2023

12. turn off all electrics for hardwiring dashcam

    By Mrisir, August 3, 2023   

    • mmi
    • audi a4 b9
    • (and 1 more)

      Tagged with:

      • mmi
      • audi a4 b9
      • dashcam wiring
    • 6 replies
    • 3.3k views
    • 
    • Mrisir
    • August 3, 2023
14. • 

    A4 Avant (B9) Battery replacement

    By Chris 747, July 23, 2023
    • • 
    • 9 replies
    • 8k views
    • 
    • alpha omega
    • August 1, 2023

15. Seat covers A4 SE

    By Tomans, July 28, 2023
    • 0 replies
    • 476 views
    • 
    • Tomans
    • July 28, 2023

16. Audi A4 B9 1.4 tfsi Knocking/crushing noise while turning

    By Jastewart91, July 23, 2023
    • 0 replies
    • 626 views
    • 
    • Jastewart91
    • July 23, 2023
17. • 

    2020 on Mild Hybrid, MHEV, Audi A4

    By Sprint, March 25, 2023
    • • 
    • 15 replies
    • 24.8k views
    • 
    • Chris 747
    • July 23, 2023
18. • 

    Break Servo Warning ABS

    By kamkamkamkam, July 6, 2023
    • • 
    • 3 replies
    • 1.2k views
    • 
    • Steve Q
    • July 22, 2023

19. Ad Blue recommendations

    By Rob G, July 5, 2023
    • 5 replies
    • 7.5k views
    • 
    • Stevey Y
    • July 13, 2023
20. • 

    Service - Next Inspection Due

    By willie6671, July 10, 2023
    • • 
    • 9 replies
    • 5.6k views
    • 
    • willie6671
    • July 10, 2023
21. • 

    Wanabee

    By andypandy1961, July 4, 2023
    • • 
    • 2 replies
    • 1k views
    • 
    • Steve Q
    • July 10, 2023

22. Front and rear badge size

    By Gary100, March 30, 2023
    • 7 replies
    • 5.8k views
    • 
    • CraigR1977
    • July 8, 2023

23. Black replacement emblems

    By Ralphy87, July 7, 2023
    • 2 replies
    • 1.6k views
    • 
    • CraigR1977
    • July 8, 2023

24. Air con not working

    By Crabbers29, February 5, 2023   

    • compressor
    • aircon
    • (and 3 more)

      Tagged with:

      • compressor
      • aircon
      • pressure switch
      • a4
      • b9
    • 4 replies
    • 6.2k views
    • 
    • Salter
    • June 25, 2023
25. • 

    Engine Remap

    By Greg W, September 18, 2021
    • • 
    • 9 replies
    • 9k views
    • 
    • Stevey Y
    • June 24, 2023

26. DPF issue

    By Paddy M, August 1, 2022
    • 12 replies
    • 10.7k views
    • 
    • Suri66
    • June 22, 2023

27. Bilstein B16 Damptronic V B16 PSS10 on Audi S4 Avant B9

    By robjames, June 19, 2023
    • 1 reply
    • 1.2k views
    • 
    • Stevey Y
    • June 19, 2023

28. 2018 Audi S4 Throttle Lag Fixes?

    By BrentB, June 17, 2023
    • 0 replies
    • 2.1k views
    • 
    • BrentB
    • June 17, 2023