The ignition coil unit is a unit that combines four ignition coils (one coil for each spark plug). The block is non-separable, cannot be repaired, and if at least one coil fails, it must be replaced as an assembly.
1. Disconnect the wire from the terminal «minus» battery.
2. Lift the left edge of the spark plug well cover.
3. Slide, overcoming the elastic resistance of the latches, the cover in the direction of the arrow...
4.... and remove the cover.
5. Slide the block's wiring harness block retainer.
6. Press the latch...
7.... and disconnect the harness block from the block.
8. Turn out two bolts of fastening of the block of coils to a head of the block of cylinders.
9. Grasp the two ends of the block; slightly shaking, pull vertically up...
10.... and remove the block, overcoming the elastic resistance of the clamps of its tips on the spark plugs.
11. Install the coil pack in the reverse order of removal.