Vauxhall Vectra 1.9 CDTi 150 SRi 5dr Review

Bought my vectra sri 1.9cdti in april 08 & it was a year old had no problems with it untill the warrenty finished last april since then i've had to put a new clutch & flywheel in in july last year then in january past i had to put a new alternator in & now the car's up for MOT in this month the engine warnig light has come (the same day i booked my MOT)so i brought it to my own mechanic to get a diagnostic done at £20 as vauxhall where charging me £75 for the same thing....THEIR A JOKE! So my mechanic done the diagnostic & it showed up as something to do with the exhaust great good knows how much this will cost as i've already spent £1800 in the past nine months, yes it's a nice lookin & performing car speed etc. but it's destroyed me on servicing.