Looks expensive to import at this point. I am going to call US dealerships and see if I can get for less:

 

I read on another forum that a guy with the same issue found out it was actually due to the fuse being blown. Maybe worth having a look?

 

@EJ_Rapide Can you PM me a link to that thread? If it was blown fuse, shouldn't the error come right back up as soon as the coil was replaced? I am not sure if the new knocking is from the same coil as the error hasn't come up yet.

I am not driving car until the OEM coils are with the mechanic.

 

It was on FB, sorry. I recall the fuses were located in the engine fuse box.