Air Mass Sensor, '91 200 20V TQ

["DiRusso, Bob" <dirussor-kac@kaman.com>]

Would like to confirm that the air mass sensor Bosch P/N 0280213007  at $360
new from most  auto parts distributors is in fact the same and complete as
the Audi P/N 034133471K at $667 new from Audi. That is a big price
difference, even though at no surprise Audi is higher.  Does any person out
there have a used one for a reasonable price?  Does any one service or
repair these?  (The wires inside the venturi are ok and check continuity.)
I would appreciate any help.  Thanks in advance.
					Bob