Audi A4 (B9) Forum

614 topics in this forum

1. • 

   A4 with 19" wheels and sport suspension

   By Donkey388, December 25, 2019
   • • 
   • 5 replies
   • 4.8k views
   • 
   • Smythy
   • February 9, 2021

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3. • 

   A4 Avant 3.0 (272) Upgrades

   By WRJ11, June 15, 2020
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   • 5 replies
   • 2.1k views
   • 
   • Steve Q
   • June 17, 2020
4. • 

   Service and Service records

   By Fridgeguy, August 4, 2020
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   • 5 replies
   • 4.2k views
   • 
   • Steve Q
   • September 7, 2020

5. A4 B9 2017 Reverse camera retrofit

   By Chris R, March 30, 2021
   • 5 replies
   • 5.7k views
   • 
   • Stevey Y
   • March 30, 2021

6. HPFP failure

   By Audi mobile A4, May 23, 2021
   • 5 replies
   • 3.3k views
   • 
   • Stevey Y
   • May 25, 2021
7. • 

   Undercarriage/Underbody Images or Diagrams

   By GiantJay, December 11, 2021
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   • 5 replies
   • 13.6k views
   • 
   • Stevey Y
   • December 12, 2021
9. • 

   A4 Avant low engine temperature

   By Peter Geisler, January 8, 2022
   • • 
   • 5 replies
   • 2.9k views
   • 
   • Magnet
   • January 8, 2022

10. c123ef0 - Hydraulic Brake Booster Limit Value Reached

    By alitop14, January 31, 2022
    • 5 replies
    • 13.1k views
    • 
    • Stevey Y
    • February 2, 2022

11. DPF issue ?

    By Mutley2110, March 1, 2022
    • 5 replies
    • 5.1k views
    • 
    • Stevey Y
    • March 2, 2022
12. • 

    RPM jumping

    By Crazycarlo, May 30, 2022
    • • 
    • 5 replies
    • 2k views
    • 
    • Ben999
    • February 13, 2023
14. • 

    2022 S4 Start-Stop

    By Vern0207, June 3, 2022
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    • 5 replies
    • 1k views
    • 
    • Magnet
    • July 16, 2022
15. • 

    A4 Avant (B9): electric window issues

    By Chris 747, June 25, 2022
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    • 5 replies
    • 1.7k views
    • 
    • Steve Q
    • July 3, 2022
16. • 

    Stop Start Restriction

    By Blueit, July 10, 2022
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    • 5 replies
    • 1k views
    • 
    • Steve Q
    • July 12, 2022
17. • 

    Interior lights

    By Ralphie, January 12
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    • 5 replies
    • 689 views
    • 
    • Peter Williams 9
    • February 21
18. • 

    Both USB ports under armrest stopped working

    By Ujw, January 30, 2023
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    • 5 replies
    • 4.7k views
    • 
    • Steve Q
    • April 30, 2023
19. • 

    Aftermarket clutch kit UK A4 B9 1.4tfsi

    By FancyVW, January 31, 2023
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    • 5 replies
    • 2.4k views
    • 
    • Magnet
    • February 18, 2023

20. Egr replacement

    By seang7000, March 16, 2023
    • 5 replies
    • 4.1k views
    • 
    • Smb250
    • March 17, 2023
21. • 

    A4 rear coil spring

    By texaspete1973, April 21, 2023
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    • 5 replies
    • 1.2k views
    • 
    • texaspete1973
    • April 22, 2023
22. • 

    What Engine Oil

    By Chris1986, May 15, 2023
    • • 
    • 5 replies
    • 1.3k views
    • 
    • alpha omega
    • May 16, 2023

23. Ad Blue recommendations

    By Rob G, July 5, 2023
    • 5 replies
    • 2.1k views
    • 
    • Stevey Y
    • July 13, 2023
24. • 

    Water and sometimes Diesel

    By Robere, November 2, 2023
    • • 
    • 5 replies
    • 496 views
    • 
    • Steve Q
    • November 10, 2023
25. • 

    Some advice on Audi car badges

    By shed13C, November 19, 2023
    • • 
    • 5 replies
    • 576 views
    • 
    • Magnet
    • November 21, 2023
26. • 

    A4 allroad quattro Cold weather triggers multiple warnings

    By Ianmac, January 7
    • • 
    • 5 replies
    • 568 views
    • 
    • Magnet
    • January 7
27. • 

    B9.5 manual gear box whine in 1st gear

    By malcolmbates, February 23
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    • 5 replies
    • 378 views
    • 
    • Magnet
    • February 25
28. • 

    Audi A4 Avant 2009 2.0 B8 TDI glow plug light

    By ADMC94, February 26
    • • 
    • 5 replies
    • 484 views
    • 
    • ADMC94
    • March 4