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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. Post Heat Exchanger Info

    Started by 335LOL, 04-17-2025 11:34 AM
    heat exchanger, iat
    • Replies: 6
    • Views: 211
    Burkeomatic
    Yesterday, 07:06 PM Go to last post

  2. What is this noise?

    Started by John336, 01-15-2022 03:28 PM
    • Replies: 26
    • Views: 5,692
    John336
    04-15-2025, 06:15 PM Go to last post

  3. HPFP Parts Question

    Started by sloth8871, 04-10-2025 09:21 AM
    • Replies: 11
    • Views: 385
    Burkeomatic
    04-15-2025, 02:33 PM Go to last post

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

    Started by Audibellybutton, 01-01-2025 08:50 PM
    al551, zf swap, zf8 2 Attachment(s)
    • Replies: 37
    • Views: 4,567
    Audibellybutton
    04-15-2025, 02:06 AM Go to last post

  5. CWUC turbocharger impeller dimensions

    Started by Sla, 03-28-2025 10:07 AM
    2 Attachment(s)
    • Replies: 14
    • Views: 803
    Sla
    04-04-2025, 11:24 AM Go to last post

  6. SRM rs7 turbos and strainer removal

    Started by Boostedawd91, 03-18-2025 07:20 PM
    • Replies: 11
    • Views: 783
    Botbasher
    04-03-2025, 07:08 PM Go to last post

  7. Intermittent coolant leak

    Started by fall-apart-dave, 03-27-2025 12:56 AM
    • Replies: 5
    • Views: 453
    Burkeomatic
    04-03-2025, 06:04 PM Go to last post

  8. 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: 5,672
    SpongeM
    04-03-2025, 01:43 PM Go to last post

  9. Downpipe

    Started by Maimonea77, 03-22-2025 09:38 PM
    • Replies: 4
    • Views: 521
    Botbasher
    04-03-2025, 05:19 AM Go to last post

  10. Anyone with Jackal tune on S6?

    Started by BarryDJr, 11-23-2024 02:39 AM
    • Replies: 24
    • Views: 2,683
    Burkeomatic
    04-02-2025, 08:36 PM Go to last post

  11. buying 2016 rs7

    Started by eliseo.z, 03-29-2025 10:23 PM
    • Replies: 1
    • Views: 333
    danmm7
    04-02-2025, 03:48 PM Go to last post

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

    Started by vtraudt, 03-20-2025 03:51 PM
    • Replies: 6
    • Views: 531
    vtraudt
    04-02-2025, 05:54 AM Go to last post

  13. Help overheating no coolant loss

    Started by DPs8, 09-25-2022 07:52 AM
    1 Attachment(s)
    • Replies: 32
    • Views: 11,978
    vtraudt
    03-23-2025, 04:06 PM Go to last post

  14. Aftermarket OEM Engine Mounts

    Started by Blackcoog, 05-22-2024 05:38 AM
    3 Pages •
    1 2 3
    2 Attachment(s)
    • Replies: 83
    • Views: 8,240
    joeyjazesmith
    03-18-2025, 05:08 PM Go to last post

  15. Audi S7 Strange noise

    Started by Emre69, 08-24-2019 03:23 AM
    • Replies: 32
    • Views: 18,702
    jh_s6
    03-17-2025, 08:26 PM Go to last post

  16. Looking for any 4.0T DS1 XDF's

    Started by QuattroNaut, 02-23-2025 10:55 PM
    ds1
    • Replies: 1
    • Views: 529
    16AudiS8+
    03-17-2025, 04:42 PM Go to last post

  17. Unhappy S7 2016 cylinder 8 misfires

    Started by John336, 03-08-2025 07:28 PM
    misfire
    • Replies: 4
    • Views: 528
    John336
    03-14-2025, 02:15 PM Go to last post

  18. Pulley ONLY replacement options??

    Started by Botbasher, 03-10-2025 01:49 PM
    • Replies: 0
    • Views: 303
    Botbasher
    03-10-2025, 01:49 PM Go to last post

  19. Oil filter bypass valve?

    Started by toddm889, 03-08-2025 05:53 AM
    • Replies: 1
    • Views: 291
    toddm889
    03-08-2025, 06:05 AM Go to last post

  20. JHM Tune

    Started by quattroism25, 04-01-2023 09:22 PM
    3 Pages •
    1 2 3
    • Replies: 84
    • Views: 23,098
    BuyTheWarranty
    03-06-2025, 06:02 PM Go to last post

  21. Meth/water injections

    Started by 09S5, 06-17-2024 07:58 AM
    7 Attachment(s)
    • Replies: 27
    • Views: 2,813
    Botbasher
    03-05-2025, 06:45 AM Go to last post

  22. Oil leaks from top end, dealer quoted total valley reseal

    Started by Josh_b8.5, 03-04-2025 04:41 PM
    • Replies: 0
    • Views: 372
    Josh_b8.5
    03-04-2025, 04:41 PM Go to last post

  23. TS1 turbos

    Started by OhioS6, 02-25-2023 10:22 PM
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 44
    • Views: 11,720
    Botbasher
    03-04-2025, 01:48 PM Go to last post

  24. Intermittent hard or no start on 4.0T S6 S7 RS7- possibly solved

    Started by Hofahome, 11-05-2018 06:57 PM
    6 Pages •
    1 2 3 4 5 ... 6
    6 Attachment(s)
    • Replies: 205
    • Views: 114,368
    Avantly
    03-03-2025, 12:58 PM Go to last post

  25. ⛽ 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: 22
    • Views: 5,639
    BuyTheWarranty
    02-23-2025, 06:32 PM Go to last post

  26. Question P1398 - Engine Speed Signal - Short to Ground

    Started by gogo_!, 02-11-2025 02:59 AM
    • Replies: 1
    • Views: 384
    Audibellybutton
    02-18-2025, 02:07 AM Go to last post

  27. Question about DS1 emissions monitors

    Started by Devman2013S7, 02-10-2025 01:06 PM
    • Replies: 1
    • Views: 544
    Burkeomatic
    02-13-2025, 12:54 PM Go to last post

  28. APR Oktunerfest Software Sale!

    Started by Arin@APR, 09-15-2023 07:01 AM
    • Replies: 7
    • Views: 1,897
    icemen36
    02-05-2025, 11:18 AM Go to last post

  29. Unique spec on this RS6 Avant C7.5 - VIDEO

    Started by Auditography, 01-25-2025 06:24 AM
    • Replies: 1
    • Views: 639
    ElementR
    02-02-2025, 07:22 AM Go to last post

  30. S6 exhaust options? Too loud currently

    Started by benznotmercedes, 12-03-2024 06:58 AM
    • Replies: 11
    • Views: 1,589
    benznotmercedes
    01-22-2025, 10:30 AM Go to last post

  31. Thumbs up NOW AVAILABLE: JHM 4.0T RKM Lined Silicone Turbocharger Oil drain Hoses

    Started by Jake@JHM, 01-21-2025 02:25 PM
    • Replies: 0
    • Views: 743
    Jake@JHM
    01-21-2025, 02:25 PM Go to last post

  32. Farewell and Q about DS1

    Started by himself, 01-19-2025 05:30 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 726
    MattyMarkey
    01-21-2025, 09:07 AM Go to last post

  33. 2017 S6 P0118 coolant temp sensor running high - where is it and can I replace it?

    Started by axon, 01-19-2025 06:08 PM
    • Replies: 1
    • Views: 522
    Botbasher
    01-20-2025, 05:33 AM Go to last post

  34. O2 sensor replacement, passenger side

    Started by Devman2013S7, 01-07-2025 10:58 AM
    • Replies: 7
    • Views: 857
    Devman2013S7
    01-19-2025, 02:00 PM Go to last post

  35. 2016 s6 cooling system

    Started by RafeG, 01-14-2025 08:15 PM
    • Replies: 4
    • Views: 859
    Tree57
    01-17-2025, 10:50 AM Go to last post

  36. Extended warranty for [emoji2388][emoji239[emoji2388]] sensor replacement?

    Started by Devman2013S7, 01-14-2025 03:58 PM
    • Replies: 3
    • Views: 510
    NewYorkS6
    01-15-2025, 05:24 PM Go to last post

  37. Air ride to coilover kit options (is anyone familiar with these options)

    Started by joeyjazesmith, 12-16-2024 08:10 PM
    • Replies: 8
    • Views: 1,766
    srb_brah
    01-11-2025, 04:11 PM Go to last post

  38. Exhaust options

    Started by Maimonea77, 01-05-2025 09:40 AM
    • Replies: 3
    • Views: 742
    STXA7
    01-09-2025, 03:13 PM Go to last post

  39. I’d like to tune my 14’ S6 w/ Unitronic Stage 1 (not 1+). Is the TCU stage 1 tune nec

    Started by Branzor, 12-14-2024 12:14 PM
    • Replies: 5
    • Views: 1,158
    M3Express
    01-09-2025, 08:12 AM Go to last post

  40. Oil screen, check valve, PCV parts list

    Started by bradthebold, 10-15-2020 08:00 PM
    • Replies: 3
    • Views: 4,189
    09S5
    01-07-2025, 06:18 PM Go to last post

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