Spark plugs and cylinders check

When I went to Husam I took recently endoscope to check engine cylinders. I don't know why, I just wanted to look inside.

But first, we unscrewed sparking plugs. They all look good with right color.

1st cylinder

2nd cylinder

3rd cylinder

4th cylinder

Few more photos of 03F 905 600 A - spark plug longlife

Made in Japan

And, of course, checking the heart of Fabia.

See also
Bosch - Spark Plug Faces (PDF)
NGK YouTube channel

23 300 km | 1Y 4M