Hi,

 

Could anyone explain please where I find the hole this tool fits in?

The manual says that it is at the "cylinder block rear flange" and I need to unbolt the "G28" engine speed sender first.

There is also a short manual showing the location:

http://skoda.workshop-manuals.com/fabia-mk1/index.php?id=3059

 

Where is it exactly? 

 

Thank you!

It goes in the hole that the (black) crank sensor is usually occupying, remove sensor, insert locking tool.

 

On the picture in this ebay advert, it is about 1/3 of the way up from the bottom of the image, and just to the left of the L-R centreline, next to a shiny hole.

 

http://www.ebay.co.uk/itm/VW-AUDI-SEAT-SKODA-1-2-12V-64-BHP-Petrol-Engine-AZQ-94-000-30-Day-Warranty-/221310800139

 

Edit: Here you go, I've 'borrowed' the picture and stuck a red arrow on it for you: