I actually corrected your thread title including your car model...but was originally titled 'Crankshaft Sensor' :hihi...will be corrected soon.
Good thing you only have single vanos otherwise you would have 2 camshaft sensors to worry about :thumbsup. I would actually buy the part from the dealer as aftermarket sensors have been prone to early faults.
Part: 12 14 1 703 221
Price: £80.50 :frown
Hmmmm...:sarcastic....O-E-M....:roflThanks German French and Swedish quoted me £40 plus VAT.. thats better lol