vauxhall vectra cdti 150 bph - timing chain - rhys

hi, i bought a vectra 2006 cdti 150 bph, it has 115,000 miles on the clock. im wondering does this make have a timimg belt or chain ? in the manual it says some makes have the chain and some a belt. there is no mention of a change of belt in the service manual, which has all the services by a vauxhall dealer in the service manual ?

vauxhall vectra cdti 150 bph - timing chain - Peter D

Lift the bonnet. A timing chain is in a metal timing cover and a belt is behind a plastic timing cover.