i was having a browse in etka. Would appear that they have the same part number.
1 030109101D
camshaft
/ PY,AAU,AAV, ACM, diesel eng.: 1W HZ,ACM
weird. but means if you're ever stuck, its easier to find one
Nah- that's got to be an error, dizzle camshaft has fuel pump drive on? Or are the 1W pumps belt driven?
That's a VAG-Cat error...
Correct numbers:
(http://www.clubpolo.co.uk/forum/uploads/monthly_09_2011/post-390-1316295236.jpg)
AAV and PY are 100% different, I've got both in the garage.