Could you please tell me how to change the plugs on a 1 litre Corsa. It is an ECO engine and the plugs are hidden by what I believe is known as a DIS unit. How is this removed ?

Locktester, November 2006

slide the black cover on top of the engine about half an inch then lift it off (middle of the engine), then the coil pack on top of the spark plugs is removed with a torxs screwdriver (3 screws) remove the multi plug on the end and gently lift you will see the plugs when the packs removed "sorry forgot about the cover"

dode, November 2006

the coil pack on top of the spark plugs is removed with a torxs screwdriver (3 screws) remove the multi plug on the end and gently lift you will see the plugs when the packs removed

dode, November 2006