Why does my Vauxhall Astra have a rough idle?

Recently, my Vauxhall Astra has been experiencing a rough idle. It seems to happen when the car is in neutral or when I'm at a stop light. I've noticed a decrease in fuel efficiency and occasional stalling. What could be causing this and how can I fix it?

Hi Emma, a common cause of rough idle in a Vauxhall Astra is a dirty or clogged throttle body. Overtime, carbon buildup can restrict the airflow and cause the engine to run rough. I recommend getting the throttle body cleaned or replaced if needed.

Hey Emma, another possibility could be a faulty mass airflow sensor. This sensor helps regulate the amount of air entering the engine and if it is not working properly, it can cause rough idle and other issues. It's best to have it diagnosed and replaced if necessary.

Hi Emma, I had a similar issue with my Astra and it turned out to be a problem with the spark plugs. When was the last time you got them replaced? If they are worn out, they can cause rough idle and decrease in fuel efficiency. I recommend getting them checked and replaced if needed.