Hi folks I had my cambelt changed on my Vectra 2.5 V6 16 months ago and now the tensioners have started whining. I phoned the dealer and they quoted 250-300 quid. This seems strange as they only charged me 150 for the cambelt change. Looking at the difference in price I'm assuming that they didn't do the tensioners etc during the cambelt change. Isn't it a Vauxhall recommended practice to change the tensioners etc when the belt is changed?