You don't really need to know which order they are in...
Just whip off the upper and inner cover, you will be able to see all 6 coils as it's a ph2.
One by one disconnect the connector to each coil, if it drops down to 4 cylinders then that coil is fine, the one you unplug which doesn't alter the engine is the faulty one. You need an 8mm socket and extension bar.
Takes me under 10 mins from stopping the car, to starting up and going again!