Ok thank you. I will ask a garage to have a look for me.
I read another thread and they mentioned that it might be the following things...
- Idle control valve sticking- may need cleaning?
- Coolant sensor (might be why it is using more fuel? But wouldn't the engine light be lit for this?)
- HT Leads
- Spark Plugs
Do any of these seem relevant to you? Sorry for 100 questions, It's just one of those frustrating problems that I think I need to investigate before I spend even more money at the garage for them to tell me they don't know...
Thanks, Lucy 