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  1. #1
    Established Member Two Rings
    Join Date
    May 09 2014
    AZ Member #
    214963
    Location
    Phoenix, AZ

    Recurring Turbowaste gate fault on RS5

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    Apologies in advance for the long post.

    Wanted to share my experiences with my 2018 RS5 and why I ultimately had to get rid of it. All service was performed at Audi Chandler (Arizona).

    I purchased the car used (6k miles) in March 2019. Since then I have had CEL come on 7 times (4 this year), all related to Turbo Wastegate faults. The dates of occurrence and the work performed by AC was as follows:

    Feb, ‘20 – software update
    June, ’21 – software update & replace wastegate vacuum valve
    Oct, ’21 – software update
    June, ’22 – software update
    July, ’22 – water pump replaced (they believed vacuum leak coming from water pump)
    Aug, ’22 – N75 wastegate solenoid replaced
    Oct, ’22 – ECM replaced & some vacuum tubing replaced

    At the June, ’22 visit I asked my SA to start looking at the hardware side (if it recurred) since the software updates were obviously not addressing the root cause. I feel like if I didn’t push on them, they’d just keep doing the bare minimum and getting the same (null) result. Unfortunately, even when they started replacing hardware, the issue kept coming back.

    When I dropped the car off in Aug of this year, I spoke with the service manager. He assured me they could fix my car and I made it clear that with my factory warranty nearly expired I wouldn’t continue ownership if it recurred. I was just about to purchase an extended warranty when the CEL came back on. They had my car for 1 month waiting to source the ECM (during that time the factory warranty expired). I had the car back for 1 week and traded it in yesterday (38k miles).

    Extremely frustrating since it is such a nice car when it’s on the road. For those who have RS5’s without any issues I am jealous. Wish I could have spent more time with mine.

    I do regret not taking it to one of our other local Audi dealers for some of the service visits this year. We have 4 others in town, but AC is just a few miles from home so the most convenient. I do wonder if things might have turned out differently if a different dealer had tried to work on it.

    When I took the car in for the Oct, ’22 CEL, I did contact Audi of America to open a potential vehicle buy-back case. While they did not offer to buy back the car, they did cut me a $6k check for my “inconvenience”. Car was gone less than a week later.

  2. #2
    Veteran Member Four Rings
    Join Date
    Apr 05 2012
    AZ Member #
    91253
    Location
    Earth

    That’s too bad but FWIW, I’ve heard a few people complain about the quality of service at AC. They ended up taking their cars to other dealers to get problems fixed.

  3. #3
    Veteran Member Four Rings
    Join Date
    Mar 14 2008
    AZ Member #
    26437
    My Garage
    Audi S5, Porsche 718 Spyder, Audi RS5
    Location
    MA

    So what happened to the car when you say it was "gone"?
    Current Fleet: Porsche 718 Spyder * Audi S5 Sportback * Audi RS5 Sportback
    On order: Audi RSQ8 Performance

  4. #4
    Junior Member Two Rings dbzdhr's Avatar
    Join Date
    Sep 14 2015
    AZ Member #
    355661
    Location
    NJ/NYC

    I did my service at Audi Chandler this year and they damaged my driver's door during the oil change and they had to replaced the entire door, I would not recommend go to Audi Chandler for your Audi.

  5. #5
    Established Member Two Rings
    Join Date
    May 09 2014
    AZ Member #
    214963
    Location
    Phoenix, AZ

    Quote Originally Posted by VVG View Post
    So what happened to the car when you say it was "gone"?
    Just meant that I traded it in.

  6. #6
    Established Member Two Rings
    Join Date
    May 09 2014
    AZ Member #
    214963
    Location
    Phoenix, AZ

    Quote Originally Posted by dbzdhr View Post
    I did my service at Audi Chandler this year and they damaged my driver's door during the oil change and they had to replaced the entire door, I would not recommend go to Audi Chandler for your Audi.
    Didn't realize Audi Chandler had this type of reputation. Would definitely have switched it up at some point.

  7. #7
    Senior Member Three Rings c99's Avatar
    Join Date
    Feb 28 2009
    AZ Member #
    39281
    My Garage
    RS5 2.9TFSI - dead engine
    Location
    EU, CZ

    Fix is realatively easy, many BMW owners know these problems.

    https://youtu.be/2AEPbmFmtY8

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