Audi A4 (B9) Forum

748 topics in this forum

1. • 

   Why Was the A4 1.4 Discontinued?

   By Ujw, January 19, 2023
   • • 
   • 4 replies
   • 4.3k views
   • 
   • Steve Q
   • January 21, 2023

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3. • 

   My Audi app

   By Wheatfielder, January 31, 2023
   • • 
   • 4 replies
   • 3.4k views
   • 
   • Steve Q
   • February 2, 2023

4. Air con not working

   By Crabbers29, February 5, 2023   

   • compressor
   • aircon
   • (and 3 more)

     Tagged with:

     • compressor
     • aircon
     • pressure switch
     • a4
     • b9
   • 4 replies
   • 6.6k views
   • 
   • Salter
   • June 25, 2023
5. • 

   No dipstick.

   By AndyA4Allroad, March 6, 2023
   • • 
   • 4 replies
   • 4.2k views
   • 
   • coupe4
   • March 6, 2023
6. • 

   Brake servo

   By Simon Bridges, June 2, 2023
   • • 
   • 4 replies
   • 1.6k views
   • 
   • Magnet
   • June 3, 2023

7. Minor ding repairs

   By Wilko91, June 14, 2023
   • 4 replies
   • 814 views
   • 
   • Wilko91
   • June 15, 2023

9. 2010 A4 bottom arm issue

   By audiwrecker123, August 11, 2023
   • 4 replies
   • 1.1k views
   • 
   • coupe4
   • August 12, 2023
10. • 

    Current A4 Avant 40 TFSI deals - what's the catch?

    By CornwallJon, August 15, 2023
    • • 
    • 4 replies
    • 2.2k views
    • 
    • CornwallJon
    • September 11, 2023
11. • 

    Wheel bearing?

    By Stevew243, August 31, 2023
    • • 
    • 4 replies
    • 2.2k views
    • 
    • Steve Q
    • September 12, 2023
12. • 

    Reversing light defective

    By Bobbo2, September 16, 2023
    • • 
    • 4 replies
    • 5.2k views
    • 
    • Bobbo2
    • October 3, 2023

14. Adblue scam?

    By Tubbybear, October 13, 2023
    • 4 replies
    • 5.1k views
    • 
    • Goose2017
    • March 31, 2024
15. • 

    2017 Audi A4 B9 - Seat Heating Buttons not working

    By verojie3, November 14, 2023
    • • 
    • 4 replies
    • 2.2k views
    • 
    • Jonesgw80
    • May 17, 2024
16. • 

    Auto box judder going into 1st

    By Neggs, December 26, 2023
    • • 
    • 4 replies
    • 1.8k views
    • 
    • Magnet
    • December 28, 2023
17. • 

    Audi A4 Adblue/DEF Error: fault. No Restart in 650 mi.

    By Imaam, December 30, 2023
    • • 
    • 4 replies
    • 6k views
    • 
    • Steve Q
    • December 30, 2023
18. • 

    ABS Pump replacement or remake

    By kamkamkamkamkam, January 6, 2024
    • • 
    • 4 replies
    • 1.5k views
    • 
    • Steve Q
    • June 13, 2024

19. A4 Avant Rear End Noise from Suspension?

    By GLOSRDM, February 13, 2024
    • 4 replies
    • 2.4k views
    • 
    • GLOSRDM
    • February 20, 2024

20. B9.5 Technik Cornering Lights

    By T-1000, February 22, 2024
    • 4 replies
    • 2.1k views
    • 
    • T-1000
    • February 24, 2024

21. Rattle noise from driver side door

    By Mrisir, March 17, 2024
    • 4 replies
    • 2k views
    • 
    • Mrisir
    • March 18, 2024

22. EGR cooler replacement

    By SJOKZ, March 9, 2024
    • 4 replies
    • 5.5k views
    • 
    • Audii
    • June 29, 2024
23. • 

    Engine issue

    By Stuey.b, March 17, 2024
    • • 
    • 4 replies
    • 1.1k views
    • 
    • Magnet
    • March 19, 2024

24. Coolant leak?

    By Wilko91, March 31, 2024
    • 4 replies
    • 1.9k views
    • 
    • Wilko91
    • March 31, 2024

25. Anyone had adblue coded out?

    By Tommeh93, April 30, 2024
    • 4 replies
    • 3.1k views
    • 
    • Hammie1982
    • May 28, 2024
26. • 

    Wireless charger USB plugs under armrest faulty?

    By Nygie, May 1, 2024
    • • 
    • 4 replies
    • 1.5k views
    • 
    • Nygie
    • May 2, 2024
27. • 

    audi a4 b9 mirror adjustment problem

    By Codex13, May 11, 2024
    • • 
    • 4 replies
    • 1.5k views
    • 
    • Steve Q
    • May 11, 2024

28. Seeking OBD enlightenment

    By hoolieman, May 14, 2024
    • 4 replies
    • 1.2k views
    • 
    • hoolieman
    • May 14, 2024