Purchased a second hand vehicle recently from a NSW dealership. Naturally, a warranty was included as part of the deal. I was told that it needed to be serviced by them for the warranty, which was fine with me. Took it in when the maintenance light popped on and they serviced it.
Shortly after, the lovely little check engine light came on. So I took it to my usual mechanic (not the dealership). Then came the interesting news, after they checked what was causing the light to appear. Apparently the car needs a new catalytic converter, and has needed one since before I purchased it. The service light came on at about 3,400km (timing is off according to mechanic) since the last service (according to the logbook), and apparently might have been modified to turn on earlier so as to allow the dealership the chance to turn the "check engine" light off again. Seeing as it's been disabled twice now.
Is this something the dealership should have discussed or mentioned to me before purchase? They claim to have done a full mechanical check before confirming my purchase. Do I have any options other than to fork out the $800+ for a new part?
TLDR: Bought car from dealership. Needed new catalytic converter since before my purchase. Made no mention of this fact and turned check engine light off in regards to this. Is there anything I can do, or just fork out the cash for a new part?
Can't you use the warranty to have it fixed?