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  1. 09-25-2016 03:42 PM #1
    Ze_Nardo6
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    What could be causing this??

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    Washed my car the other day, including an engine cleaning (which I had not done for a long time). Took the car out for a test drive that evening and the car ran perfectly.

    Car sits for two days. I start it up to take it to dinner, the lights on the sports diff control and the traction control button both DO NOT illuminate. Also, the A/C doesn't work, just blows warm air. I tried restarting the car several times, no change.

    EDIT FOR UPDATE: Just started the car back up since first time it did the above, works perfectly fine now. What gives? Any ideas from the codes below? I'm a novice at this stuff.



    Last edited by Ze_Nardo6; 09-26-2016 at 02:08 PM.
    Mickey (AKA: AudiS4B8)

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  2. 09-25-2016 03:51 PM #2
    Batman0424
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    Have you checked the fuses?


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  3. 09-25-2016 06:40 PM #3
    S4'ed
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    Did you use a pressure washer on the engine?
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  4. 09-25-2016 06:56 PM #4
    Ze_Nardo6
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    Quote Originally Posted by Batman0424 View Post
    Have you checked the fuses?


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    I don't have a fuse tester, may have to buy one.
    Mickey (AKA: AudiS4B8)

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  5. 09-25-2016 06:57 PM #5
    Ze_Nardo6
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    Quote Originally Posted by S4'ed View Post
    Did you use a pressure washer on the engine?
    Negative, not even a hose. Used a degreaser and detail spray.
    Mickey (AKA: AudiS4B8)

    For Sale: 2017 Nardo Grey S6 | RS Turbos | AMS Cooling System | Full Suntek PPF | Opticoat Pro+

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  6. 09-25-2016 07:55 PM #6
    14S4GWM
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    Quote Originally Posted by AudiS4B8 View Post
    I don't have a fuse tester, may have to buy one.
    You don't need to buy a fuse tester. You pull the fuse and see if it's good or not. Scan it!
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  7. 09-25-2016 08:14 PM #7
    darkstarghost
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    Check the fuse in the passenger side box its a 3 amp.

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  8. 09-26-2016 07:35 AM #8
    sacandagaD
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  9. 09-26-2016 07:39 AM #9
    SwankP3RF3ct10n
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    You need to scan for codes and possibly do a DTC clear and see if things return to normal. Without that, it's like shooting in the dark with these cars. This is why people should invest in a useful tool like VAGCOM.
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  10. 09-26-2016 08:12 AM #10
    Ze_Nardo6
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    Quote Originally Posted by SwankP3RF3ct10n View Post
    You need to scan for codes and possibly do a DTC clear and see if things return to normal. Without that, it's like shooting in the dark with these cars. This is why people should invest in a useful tool like VAGCOM.
    I have VAGCOM, I'll run for codes today. Would it show a failed fuse?
    Mickey (AKA: AudiS4B8)

    For Sale: 2017 Nardo Grey S6 | RS Turbos | AMS Cooling System | Full Suntek PPF | Opticoat Pro+

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    10.65 @ 129mph
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  12. 09-26-2016 11:02 AM #11
    sirsycott
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    Quote Originally Posted by AudiS4B8 View Post
    I have VAGCOM, I'll run for codes today. Would it show a failed fuse?
    non responsive modules
    short to grounds.. possibly
    and communication errors would be fuses
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  13. 09-26-2016 02:08 PM #12
    Ze_Nardo6
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    Update on first post
    Mickey (AKA: AudiS4B8)

    For Sale: 2017 Nardo Grey S6 | RS Turbos | AMS Cooling System | Full Suntek PPF | Opticoat Pro+

    Instagram: ze_nardo6
    10.65 @ 129mph
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