S65/S85 throttle actuators.

Discussion in 'E90 Saloon / E92 Coupe / E93 Convertible M3 (2008-2013)' started by alpina527, Jan 24, 2014.

  1. 25 Jan 2014 at 3:28 PM #21
    SecureMyCar

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    Well done Ian. A master at work!!
     
  2. 25 Jan 2014 at 3:37 PM #22
    Keith

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    We're used to seeing top quality engineering solutions from you Ian - this is another fine piece of investigative work with a beautifully crafted solution. Top job mate :thumbsup:
     
  3. 25 Jan 2014 at 4:07 PM #23
    Traveller

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    That's so impressive. Well done
     
  4. 25 Jan 2014 at 5:23 PM #24
    tonyjacko

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    Ian you could market these and retire lol:peace:
     
  5. 25 Jan 2014 at 5:28 PM #25
    tonyjacko

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    Ian, just looking at the photos again, the teeth on the gears look to be okay and not broken, so what is the issue with them?

    Thanks Tony
     
  6. 25 Jan 2014 at 5:32 PM #26
    Arkenphel

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    That's what I suggested. Quickly patent it and you'd have an awesome market here and worldwide!

    As I've volunteered to test the prototype, does that make me some sort of Walter Rohrl? :)
     
    Last edited: Jan 25, 2014
  7. 25 Jan 2014 at 5:55 PM #27
    Jpm777

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    Looks like a nice piece of engineering. Can only imagine the time and thought that went into the design and build process. Awesome work! :thumbsup:
     
  8. 25 Jan 2014 at 8:37 PM #28
    Toffeeman

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    It's difficult to see on the photos but I know from other threads that the teeth don't break, they wear or thin out. This excessive wear introduces a backlash (excessive play) into the system that the sensitive electronics can't handle hence the warnings.
     
  9. 25 Jan 2014 at 8:42 PM #29
    tonyjacko

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    Thanks for the explanation all makes sense now. What are the years affected or is all e90,e92,e93?
     
  10. 25 Jan 2014 at 9:17 PM #30
    Toffeeman

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    All years, all models I'm afraid.

    They are off the shelf actuators manufactured by VDO-Siemens and they are (as far as I know) exactly the same today as they were in 2007 so the issue remains.
     
  11. 25 Jan 2014 at 10:25 PM #31
    alpina527

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    I nabbed this photo from another forum. It clearly shows the wear on the teeth.

    Small pinion gear

    [​IMG]

    Output gear as it should look

    [​IMG]

    Output gear showing the worn portion

    [​IMG]
     
  12. 25 Jan 2014 at 10:42 PM #32
    RAWM3EVO

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    71k and i'm still on original Accutators !!

    its the only reason im carring on the BMW Extended warranty at comprehensive level .... as soon as they pop and get replaced i`ll lower the level ...

    my VIN is only a few away from yours Ian ... gulp !

    Its a shame the Accuators are buried deep in the "V" ... else a clean up and inspection would be an annual task.
     
    Last edited: Jan 25, 2014
  13. 12 Mar 2014 at 3:50 PM #33
    alpina527

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    Sorry about the late update but I've only just got round to fitting these. I did both banks on Monday and it's running perfectly.

    The only problem I have is a few grazes. It's very tight under the intake.:)
     
  14. 12 Mar 2014 at 7:50 PM #34
    Flapps

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    Ian, its only because some annoying git with a problem actuator delayed you!!!!:muttley:

    Flapps
     
  15. 12 Mar 2014 at 10:24 PM #35
    Ant Man

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    Top job mate. Maybe do what Peter did with the diesel swirl flaps if you have time?:thumbsup:
     
  16. 12 Mar 2014 at 10:29 PM #36
    tates

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    Seen these in the flesh a truly awesome piece of engineering. Top job Ian
     
  17. 12 Mar 2014 at 10:40 PM #37
    Chris M3

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    My car has less than 11,000 miles on it and its had one replaced.
     
  18. 12 Mar 2014 at 10:54 PM #38
    jayukRS

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    I know it's not the same but I'm having the idle actuator replaced tomorrow,bmw don't have much look with actuators:mad:
     
  19. 12 Mar 2014 at 11:26 PM #39
    chris2712

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    Are these being made now? If there is a cheaper fix than replacing the entire unit sounds very good
     
  20. 13 Mar 2014 at 12:56 AM #40
    tonyjacko

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    Keeping everything crossed for me and I'm not going to tempt fait and say it....:thumbsup:
     

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