After the plastic cover is removed ( six torx screws) : on the right is a small coil and some capacitors. On the left is a black module. I suspect that this is the control module that switches the spark to each of the 4 output coils. As you can see, the four individual ignition coils are easy to change. The primary resistance of each coil was less than 1 ohm and the seconday resistance ranged between 830 and 840 ohms. It is also easy to see that they are partly oil filled. Given the cost of these cassetes, this could be useful information to fellow DYIers. View photos at
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