I said it was gamble.sometimes its worth it...atleast you know how to fit the new one.sorry cant help with partnumbers.

 

Just out of curiosity,did the ASV flap move? 

Indeed it didn't cost me anything to strip it and I now know how to do the job again. Worthwhile exercise.

Yes the flap did move freely with the normal resistance from the spring. I guess the damage to the motor electrics had already been done, I would assume by the oil that was inside the housing. It's a mystery to me how so much got in there though.

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Edited 4 January, 201610 yr by mrhappy

So, new ASV bought and fitted today, took no more than 30 mins as I knew what I was doing.  Engine no longer shudders when switching off, fault codes cleared and hopefully that's the end of it.  Thanks for all the advice chaps. :clap:

Sorted! pat yourself on the back.