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Forum: V8 4.0TT Specific

Discussion Forum relating specifically to the 4.0L twin-turbo V8 powered C7 S6, S7, RS 6 and RS 7.

  1. Needing to Replace C7.5 RS7 Control Arms

    Started by Dusk.A6, 05-31-2025 10:28 PM
    • Replies: 19
    • Views: 1,071
    Botbasher
    Today, 04:11 PM Go to last post

  2. IE's Official C7/C7.5 S6 & S7 Tuning & Hardware Thread

    Started by Tyler@IE, 05-25-2021 04:13 PM
    4 Pages •
    1 2 3 4
    • Replies: 125
    • Views: 64,284
    srb_brah
    Yesterday, 04:23 PM Go to last post

  3. 4.0T E-Blend Mileage Discussion

    Started by Burkeomatic, 06-06-2025 05:50 PM
    • Replies: 15
    • Views: 899
    Burkeomatic
    06-21-2025, 07:45 PM Go to last post

  4. C7 S6/S7 DL501 to ZF8 HP55 Swap Guide

    Started by Audibellybutton, 01-01-2025 08:50 PM
    2 Pages •
    1 2
    al551, zf swap, zf8 2 Attachment(s)
    • Replies: 51
    • Views: 8,281
    Audibellybutton
    06-21-2025, 04:48 PM Go to last post

  5. APR Ultralink: At Home Flash Tuning is Now Here! (4.0T EA824)

    Started by Arin@APR, 06-19-2025 08:35 AM
    • Replies: 0
    • Views: 172
    Arin@APR
    06-19-2025, 08:35 AM Go to last post

  6. Anyone running JHM ECU/TCU?

    Started by BarryDJr, 11-18-2024 06:44 AM
    • Replies: 36
    • Views: 2,999
    Jake@JHM
    06-18-2025, 03:11 PM Go to last post

  7. Question APR Stage 2 ECU/Stage 1 TCU Question

    Started by bakler5, 06-16-2025 08:34 PM
    • Replies: 4
    • Views: 272
    esemes
    06-18-2025, 01:22 PM Go to last post

  8. Sport Diff and Transfer Box service

    Started by skhan91, 06-16-2025 12:05 PM
    • Replies: 12
    • Views: 417
    skhan91
    06-17-2025, 07:17 PM Go to last post

  9. TS1 turbos

    Started by OhioS6, 02-25-2023 10:22 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 48
    • Views: 13,650
    Benbvan
    06-09-2025, 12:01 PM Go to last post

  10. Intake temps vs ambient spread? What's normal?

    Started by Boostedawd91, 06-06-2025 01:46 PM
    • Replies: 0
    • Views: 253
    Boostedawd91
    06-06-2025, 01:46 PM Go to last post

  11. Flywheel replacement - what else should I have done?

    Started by Solarstorm, 05-27-2025 12:02 PM
    • Replies: 2
    • Views: 377
    Solarstorm
    06-05-2025, 12:07 PM Go to last post

  12. Question about turbo warranty (replaced during oil screen recall)

    Started by skhan91, 06-02-2025 06:36 PM
    • Replies: 1
    • Views: 276
    Burkeomatic
    06-02-2025, 06:50 PM Go to last post

  13. Piston oil cooling solenoid or pressure switch?

    Started by QuattroNaut, 06-02-2025 04:02 AM
    oil pressure
    • Replies: 0
    • Views: 233
    QuattroNaut
    06-02-2025, 04:02 AM Go to last post

  14. Question P0240 & P0045(F3) codes once a month

    Started by 1nS4ne, 09-17-2021 11:34 AM
    11 Attachment(s)
    • Replies: 27
    • Views: 10,882
    Ezrakovac227
    05-30-2025, 09:30 PM Go to last post

  15. Looking for an intake for RS C7.5.

    Started by emceus, 05-27-2025 07:17 AM
    • Replies: 1
    • Views: 335
    emceus
    05-30-2025, 07:05 AM Go to last post

  16. [Warning] My $7K Tuning Experience with Kyle – Stage3 + Meth Kit Gone Wrong

    Started by scotteumach, 05-15-2025 07:19 PM
    • Replies: 6
    • Views: 1,289
    Audisthesia
    05-26-2025, 03:30 AM Go to last post

  17. Consistently been pulling DTC P227000 - how do I start diagnosing?

    Started by sp2310, 05-16-2025 12:16 AM
    • Replies: 0
    • Views: 357
    sp2310
    05-16-2025, 12:16 AM Go to last post

  18. Rear sway bar upgrade

    Started by Maimonea77, 05-05-2025 05:05 PM
    • Replies: 9
    • Views: 846
    ericw.
    05-15-2025, 08:54 AM Go to last post

  19. Anyone attempted oxygen sensor replacements?

    Started by joe_momma, 05-09-2025 07:18 AM
    • Replies: 5
    • Views: 700
    joe_momma
    05-13-2025, 03:03 PM Go to last post

  20. 4.0t replace/update

    Started by PaS6, 04-21-2025 10:32 PM
    • Replies: 15
    • Views: 1,290
    PaS6
    05-10-2025, 08:08 AM Go to last post

  21. ⛽ New Product: JHM Braided Kevlar Fuel Line Re-Route Kit for the 4.0t ⛽

    Started by Tech/Sales@JHM, 02-22-2024 10:49 AM
    • Replies: 34
    • Views: 6,715
    Jake@JHM
    05-08-2025, 09:12 AM Go to last post

  22. How long does pcv breather valve last?

    Started by flyfishing, 05-05-2025 01:21 PM
    • Replies: 1
    • Views: 451
    Audibellybutton
    05-06-2025, 11:00 PM Go to last post

  23. Simultaneous coolant temp and oil temp faults

    Started by Orch, 04-26-2025 12:10 PM
    • Replies: 2
    • Views: 457
    Orch
    05-06-2025, 07:49 AM Go to last post

  24. New product: Pierburg CWA-150

    Started by Dasquade, 01-13-2021 09:17 AM
    9 Attachment(s)
    • Replies: 22
    • Views: 16,857
    Botbasher
    05-05-2025, 10:42 AM Go to last post

  25. Vacuum Pump Testing / Intake Manifold Flaps

    Started by nels2825, 06-27-2021 08:34 AM
    1 Attachment(s)
    • Replies: 6
    • Views: 1,101
    Audibellybutton
    05-04-2025, 04:33 PM Go to last post

  26. Fuelling on the C7.5 S6

    Started by Manaz, 04-25-2025 11:06 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 738
    srb_brah
    05-01-2025, 08:28 AM Go to last post

  27. Cooling system and brake drain and refill. 2016 S7

    Started by EriCal, 04-22-2025 02:26 PM
    • Replies: 1
    • Views: 461
    Botbasher
    04-30-2025, 07:14 AM Go to last post

  28. DSG Rebuilt Mechatronic Units

    Started by Blackcoog, 04-23-2025 09:19 AM
    • Replies: 1
    • Views: 547
    Botbasher
    04-30-2025, 05:47 AM Go to last post

  29. Transmission Fluid Cooler Control Fault code p2755 For S6

    Started by Euconect, 04-28-2025 07:35 AM
    • Replies: 0
    • Views: 398
    Euconect
    04-28-2025, 07:35 AM Go to last post

  30. Post Heat Exchanger Info

    Started by 335LOL, 04-17-2025 11:34 AM
    heat exchanger, iat
    • Replies: 6
    • Views: 775
    Burkeomatic
    04-18-2025, 07:06 PM Go to last post

  31. What is this noise?

    Started by John336, 01-15-2022 03:28 PM
    • Replies: 26
    • Views: 6,226
    John336
    04-15-2025, 06:15 PM Go to last post

  32. HPFP Parts Question

    Started by sloth8871, 04-10-2025 09:21 AM
    • Replies: 11
    • Views: 859
    Burkeomatic
    04-15-2025, 02:33 PM Go to last post

  33. CWUC turbocharger impeller dimensions

    Started by Sla, 03-28-2025 10:07 AM
    2 Attachment(s)
    • Replies: 14
    • Views: 1,134
    Sla
    04-04-2025, 11:24 AM Go to last post

  34. SRM rs7 turbos and strainer removal

    Started by Boostedawd91, 03-18-2025 07:20 PM
    • Replies: 11
    • Views: 1,248
    Botbasher
    04-03-2025, 07:08 PM Go to last post

  35. Intermittent coolant leak

    Started by fall-apart-dave, 03-27-2025 12:56 AM
    • Replies: 5
    • Views: 776
    Burkeomatic
    04-03-2025, 06:04 PM Go to last post

  36. Audi S6 C7 Stage 2+/ 3 Result Opinion

    Started by Vanko0o1, 07-15-2023 04:49 AM
    question, s6 stage3, tuning 2 Attachment(s)
    • Replies: 16
    • Views: 6,536
    SpongeM
    04-03-2025, 01:43 PM Go to last post

  37. Downpipe

    Started by Maimonea77, 03-22-2025 09:38 PM
    • Replies: 4
    • Views: 954
    Botbasher
    04-03-2025, 05:19 AM Go to last post

  38. Anyone with Jackal tune on S6?

    Started by BarryDJr, 11-23-2024 02:39 AM
    • Replies: 24
    • Views: 4,213
    Burkeomatic
    04-02-2025, 08:36 PM Go to last post

  39. buying 2016 rs7

    Started by eliseo.z, 03-29-2025 10:23 PM
    • Replies: 1
    • Views: 690
    danmm7
    04-02-2025, 03:48 PM Go to last post

  40. What can cause 'no heat', 'cold radiator' and 'overheating"?

    Started by vtraudt, 03-20-2025 03:51 PM
    • Replies: 6
    • Views: 818
    vtraudt
    04-02-2025, 05:54 AM Go to last post

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