Audi A4 (B9) Forum

767 topics in this forum

1. • 

   Brake servo restricted 1 2 3 4 28

   By Stevie84, August 4, 2019
   • • 
   • 695 replies
   • 358.4k views
   • 
   • Flatspell
   • July 7

2. Your one stop shop for all things parts and accessories Sponsored

   eBay 1 hour ago

   Visit eBay

3. • 

   A4 allroad Retrofit genuine Audi Swivel/Retracting towbar A4 B9 and All-Road

   By Steve Q, April 18, 2022
   • • 
   • 6 replies
   • 9.7k views
   • 
   • Steve Q
   • June 9, 2023
4. • 

   Audi A4 b9 Avant load guard fitting guide

   By Steve Q, April 20, 2022
   • • 
   • 0 replies
   • 3.6k views
   • 
   • Steve Q
   • April 20, 2022
5. • 

   Replace fron parking sensor S5 B9

   By GR-S5, Saturday at 11:49 AM
   • • 
   • 5 replies
   • 124 views
   • 
   • spartacus 68
   • Sunday at 04:01 PM
6. • 

   help Shaking at idle (Sometimes Stalls) - Misfire all cylinders

   By SuperFastYo, July 9   

   • shake
   • shaking
   • (and 3 more)

     Tagged with:

     • shake
     • shaking
     • b9
     • a4
     • idle
   • • 
   • 6 replies
   • 236 views
   • 
   • spartacus 68
   • Sunday at 07:09 AM

7. VCDS help needed - Central Scotland

   By Chisy, July 7
   • 4 replies
   • 142 views
   • 
   • Chisy
   • July 9
9. • 

   TPMS & Drive system Fault

   By GR-S5, July 8
   • • 
   • 2 replies
   • 110 views
   • 
   • GR-S5
   • July 8

10. The previous owner name appeared on my infotainment screen

    By StephenF, July 7
    • 0 replies
    • 96 views
    • 
    • StephenF
    • July 7
11. • 

    2021 A4 - Rotational Noise (Not Balancing)

    By mt1982sheff, May 23
    • • 
    • 5 replies
    • 346 views
    • 
    • Steve Q
    • July 4
12. • 

    HELP - heater core replacement 1 2 3

    By RE001, September 9, 2023
    • • 
    • 62 replies
    • 18.5k views
    • 
    • Vytas
    • July 2
14. • 

    Audi a4 b9 undertray

    By Craig stuart, June 26
    • • 
    • 6 replies
    • 256 views
    • 
    • Steve Q
    • June 26
15. • 

    2017 Audi A4 B9 Coolant Leak

    By MoGonza167, June 18
    • • 
    • 4 replies
    • 287 views
    • 
    • cliffcoggin
    • June 21
16. • 

    2.0TDI Charge Cooler pump advice

    By manwithaudi, June 21
    • • 
    • 3 replies
    • 283 views
    • 
    • Steve Q
    • June 21

17. A4 B9 recirculation flap motor issue

    By Mark9918, August 4, 2022
    • 15 replies
    • 12.6k views
    • 
    • figo_rulz11
    • June 18
18. • 

    Tyre wear on car

    By Maxwell B, June 9
    • • 
    • 3 replies
    • 241 views
    • 
    • Magnet
    • June 15
19. • 

    B9 Battery voltage 1 2

    By Reavley, April 21
    • • 
    • 32 replies
    • 1.5k views
    • 
    • Reavley
    • June 11

20. Alloy Paint Code

    By Sparky001, June 10
    • 1 reply
    • 183 views
    • 
    • spartacus 68
    • June 10
21. • 

    1.4 tfsi Clutch high and occasional squeal

    By Redred, May 15
    • • 
    • 7 replies
    • 458 views
    • 
    • cliffcoggin
    • June 3

22. Cold air to footwell and back passenger vents A4 B9

    By Vytas, November 21, 2024
    • 1 reply
    • 731 views
    • 
    • Rodney79
    • June 3
23. • 

    Cold air blowing at feet but warm at all other vents

    By Rodney79, May 9
    • • 
    • 3 replies
    • 228 views
    • 
    • Rodney79
    • June 3

24. Sound coming from Vacuum/Oil pump? Or bad belt tensioner?

    By LinasO, January 5   

    • oil pump
    • vacuum
    • (and 3 more)

      Tagged with:

      • oil pump
      • vacuum
      • tensioner
      • noise
      • grinding
    • 6 replies
    • 895 views
    • 
    • raiz
    • May 28
25. • 

    2009 Audi A4 Suspension Issue – Bought from Dealer

    By Mark Valley, April 10
    • • 
    • 16 replies
    • 871 views
    • 
    • Mark Valley
    • May 22
26. • 

    Where to get spare parts

    By StuartT, May 20
    • • 
    • 3 replies
    • 251 views
    • 
    • Steve Q
    • May 20

27. Efficiency mode display

    By Horrgakx, October 30, 2017
    • 3 replies
    • 3.5k views
    • 
    • bantamdave21
    • May 17
28. • 

    A4 Avant B9 buying questions

    By bill_face, May 13   

    • specs
    • trim
    • • 
    • 5 replies
    • 511 views
    • 
    • Steve Q
    • May 17