Octavia VRS 2002 - EPC & Engine Management Light

Hi Peeps

I need a little help, I have recently had the EPC light come on and the engine management light come on,

I have plugged car into a VAG reader and the following codes come up

17608

17705

17545

16705

16706

I have looked in the code book and it does explain roughly what each fault code means etc.

Can you advise roughly what to check and what component of the engine might

be causing the faults.

Thank you in advance for your help!

Regards

Gareth