See more from Ask Carzone 
Belt or chain in a 2013 Astra?
Does a 2013 Vauxhall Astra with an Engine A1DTS have a timing belt or Chain
Our answer:
Hi John,
We assume you mean the 'A17DTS' engine, the 1.7 diesel. That 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.