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  1. 01-07-2025 10:58 AM #1
    Devman2013S7
    Devman2013S7 is offline
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    May 10 2019
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    Maryland

    O2 sensor replacement, passenger side

    Is this a DIY job for someone with minimal mechanic skills and a friend with decent skills helping out or do I need to take it into a shop? First time changing this out. 2016 RS7. Thanks in advance!


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  2. 01-07-2025 07:47 PM #2
    Akakios
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    Feb 05 2022
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    670890
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    2014 Audi S7 | 2018 Audi S4
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    DE

    Quote Originally Posted by Devman2013S7 View Post
    Is this a DIY job for someone with minimal mechanic skills and a friend with decent skills helping out or do I need to take it into a shop? First time changing this out. 2016 RS7. Thanks in advance!


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    Passenger wheel into the air, remove the fender liner, remove the axle heat shield, disconnect connector, break zip tie if holding harness down and then use a normal O2 socket/breaker bar to crank it off like normal. Replace and do burn outs.
    Deutsche Auto Garage - Website // YouTube // Instagram

    2014 Audi S7 (Audi Exclusive Interior)
    2018 Audi S4
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  3. 01-09-2025 05:56 AM #3
    joeyjazesmith
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    boogy down, NY

    It took me no time to do mines, was able to get it from the top. Once you reach it, its just unscrewing the old one and putting in a new one
    C7 2015 Audi S6 | APR Stage 1 ECU tune | APR TCU tune | ECS Performance Engine Mounts | | ECS Luft-Technik intake system | ECS Billet Aluminum Underbody subframe brace | 034 Motorsports street density control arms | 034 Motorsport adjustable swaybar links | JHM Oil Strainer relocation Kit | TGK Motorsport Coolant Tank AN lines | Leyo Shift Knob | Uniden R7
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  4. 01-12-2025 12:19 PM #4
    Akakios
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    Quote Originally Posted by joeyjazesmith View Post
    It took me no time to do mines, was able to get it from the top. Once you reach it, its just unscrewing the old one and putting in a new one
    The driver side for sure is easy, but the passenger side is not fun at all if you do it by the book. This is the first time I've heard of someone successfully pulling it off from the top, so if that's the case, we may have just saved ourselves some trouble in the future.
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    2014 Audi S7 (Audi Exclusive Interior)
    2018 Audi S4
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  5. 01-15-2025 05:30 PM #5
    NewYorkS6
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    v8 crosses overfor rear sensors. passanger side rear O2 reachable from top of drivers side. driver rear O2 under car on passanger side. also rear O2 sensor has extended warranty coverage from audi for 10 years 120k miles. 800-253-2834
    2018 S6 Premium+
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  6. 01-11-2025 10:17 AM #6
    KFT2
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    Apr 27 2024
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    San Francisco

    Passenger side is horrible. No visual line of light to the connector. Can't reach the connector without extreme contortions, and then can only get finger tips of one hand on it. It doesn't take a lot of mechanic skill, just patience.
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  7. 01-18-2025 06:02 PM #7
    Devman2013S7
    Devman2013S7 is offline
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    Maryland

    Got them changed out, and yep wasn’t fun at all. Thanks Audi fam!


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  8. 01-19-2025 02:00 PM #8
    Devman2013S7
    Devman2013S7 is offline
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    O[emoji23] sensor replacement, passenger side

    Ok changed out all 4 O2 sensors in the RS7, cleared codes but this morning 5 mins after a startup got these codes, any thought? Could it be Cats? Car is a 2016 with 99k miles.



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