See more from Ask Carzone 
Does my Astra 1.7 have a belt or chain?
Does my 2014 astra 1.7 cdti have a timing belt or chain?
Our answer:
Hi Jason,
That engine has a timing belt.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.