Be aware that there are very few failures in the ignition cylinder.  Most of
the time a worn key is the culprit.  A correctly cut key (not a copy of your
already worn key) will generally solve the problem.
Steve Sandlin
Steve's Lock Shoppe
http://www.steveslockshop.com
'84 Wolfsburg Westy
'79 Transporter
'00 New Beetle