Hello, in autumn 2008 I brought my 9-5 Aero for inspection to a Berlin Saab workshop – there despite my note no wear of the control chain was detected. But now due to appropriate demand nevertheless, also misignition of the ignition cassette, defective hose crankcase ventilation. For control chains the gentlemen want 2500Euro, for the hose 80Euro and the ignition cassette 400Euro repair costs. – I read quite extensively here – but Are the prices (especially for the control chains) normal or completely turned off? Have read here for the control chain prices of 300Euro – but perhaps a little more exchange. And how can one establish a worn-out control chain regularly – by hearsay or is there a prescribed measurement procedure? Today the workshop owner personally informed me that there is no such prescribed measurement method^^. Thanks for your efforts and hints already now! Stefan