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Facelift The dreaded Cam actuator fault.

T-1000 Jun 14, 2020

  1. T-1000

    T-1000 Registered User

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    Seen this on a few TTRS cars (one with catastrophic consequences)
    Camshaft actuator solenoid.
    [​IMG]
    [​IMG]
    Hope this isn’t a sign they are all going to fail, may be tempted to replace them all.
    £80+vat each.
    [​IMG]


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    Ross_T_Boss likes this.
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  3. Count Drunkula

    Count Drunkula Registered User

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    Any symptoms leading up to getting the error code?
     
  4. seventeenapg

    seventeenapg Registered User

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    Following....

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  5. T-1000

    T-1000 Registered User

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    Nothing, completely out of the blue, at first I thought it was just the beep you get at cold start.
    Error warning on dash so I didn’t fire it, scan revealed the solenoid.

    I’ve heard horror stories of the pins being sheared off at speed which is a concern.


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  6. Ross_T_Boss

    Ross_T_Boss Registered User

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    What mileage etc?

    I just replaced one after getting this error, '18 TTRS on 18k. It came after the car had been stood for a while, recharged the battery and it came up when I started it. Car sounded really crazy too - it was stuck in high-lift. No pin damage when removed so just slapped the replacement on and all is good.

    I bought 2 for £40 delivered on German ebay, similar age/mileage so I'lll see how it goes. I wonder if theres any issues with solenoids on the V6T...
     
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  7. nick_grice

    nick_grice Registered User

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    I had something similar on my 16 plate RS3. Started car in the morning, short trip to drop the kids off then on restart I got the engine warning light and start/stop deactivated. There was no unusual noise from the engine or hesitation.

    Garage diagnosed with code P001400 exhaust camshaft solenoid. Was told it could be several things (some quite expensive) but turned out the solenoid just needed replacing.
     
  8. T-1000

    T-1000 Registered User

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    23k.

    I did have what thought was some duff Momentum from Tesco, car suddenly started running lumpy and cutting out, but now I’m wondering if it was connected to this.......


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  9. T-1000

    T-1000 Registered User

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    PFL engines don’t have the Audi valve lift system yours would’ve been a different solenoid.
    These actuators are directly behind the Coil pack connectors and operate the variable valve lift.

    1 for every cylinder.


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  10. JWAM

    JWAM Registered User

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    Thanks for posting t-1000, useful to know. I'm pretty sure iroz have had a us 2018 plate car in for a rebuild as a result of damage done as dealer wouldn't cover it on a mapped car.
    Are the new solenoids a revised part, or any other options aside factory fit available (assuming if they are a weak link a like for like replacement may also fail again...)?
     
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  11. T-1000

    T-1000 Registered User

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    Part number is the same.

    I think it’s just one of those things where a part is in a hostile environment and has moving parts / electrical connections and could be susceptible to an odd failure from time to time.

    Whether that failure happing at speed is an issue I can’t say, maybe they are designed to fail safely, the US failures don’t seem to suggest that though

    For me it would always be swapping to a new OEM part to make sure every thing operates as Audi designed it.


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  13. wuta3

    wuta3 Registered User

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  14. T-1000

    T-1000 Registered User

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    That guy is on Audizine he had the engine replaced recently for 28k.

    Interesting point is several broken rocker arms reported so begs the question did they destroy the engine and damage the solenoid in the process, these roller rockers Audi use have been known to let go at high revs.


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  15. D0C

    D0C Registered User

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    £28k for a new engine? Might as well buy a whole new car!
     
  16. wuta3

    wuta3 Registered User

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    Wow, i'd hold out for a rear ended car at auction
     
  17. T-1000

    T-1000 Registered User

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    US $


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  18. RS03WKS

    RS03WKS Registered User

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  19. T-1000

    T-1000 Registered User

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    07K 906 048D - £96.85 inc VAT


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  20. RS03WKS

    RS03WKS Registered User

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    Perfect Thanks
     
  21. wuta3

    wuta3 Registered User

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    I hope this doesn't turn in to a widespread issue and there's a load of people going cap-in-hand to Audi for new engines. Not sure that'll be a smooth journey
     
  22. T-1000

    T-1000 Registered User

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    Can’t see it being an issue.

    Don’t forget a lot of Vag engines run these actuators.
    On the 4 cylinder there are actually 2 per cylinder but separate items.
    Like below.
    So the Daza and V6 etc are unique in using 2 pins for one module......imagine having to buy 10 off
    [​IMG]



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  23. Sequence

    Sequence Registered User

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    Is it a individual cylinder valve control system or do all move at the same time to adjust all 5 cylinders do you know? if i remember correctly the EA888 just uses magnetic actuators at the end of the cams which seem to work well though do have issues.
     
  24. T-1000

    T-1000 Registered User

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    EA888 Gen 3 employs singles.

    See below. They work on same principle in that they move a pin in and out of the camshaft to slide it across and change lift
    [​IMG]
    Our cars use a double pin for each cylinder so 5 units in total.


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  25. D0C

    D0C Registered User

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    Still extremely painful, even in USD!
     
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  26. T-1000

    T-1000 Registered User

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    A base engine is £17100 + vat
    Turbo charger is £2450 + vat

    Then you'll have the fitting works on top.......

    Thing about the Daza block is once you damage the cylinder walls it's pretty much knackered as they are plasma lined, although it could be sleeved if the damage isn't too severe, the issue with having it sleeved is you lose the very slight bore taper that Audi engineered into the block.
     
  27. wuta3

    wuta3 Registered User

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    I mean, at that point you may as well sleeve, rods, better turbo and shoot for 700+bhp
     
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  28. T-1000

    T-1000 Registered User

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    Good video here to watch





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  29. Sequence

    Sequence Registered User

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    Seen it yesterday i'm an avid fan of DAP :p explains things very well.
     

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