See more from Ask Carzone 
When to replace my Astra's cambelt?
Manufacturer’s intervals when should a cambelt be replaced on a Vauxhall astra 1.6 2012 5 door hatchback be replaced?
Our answer:
Hi Stu,
Assuming your car is the 1.6 16-valve petrol model, it's at least every 150,000km or every six years, whichever comes first.
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.