Engine undertray torx screw size Octavia III

[Atlantean]

I just got an 18 Octavia Combo 1.0 TSI facelift and I want to do an oil change.

 

Before I go jack it up and crawl in under it can anyone tell me what size the torx screws are that secure the undertray?  I'm more concerned about the 3 larger bolts towards the rear of the tray  (11 on the attached diagram) as I might not have a torx large enough to undo it.

 

All I can find is that the part number is WHT 000 729 A and that it's M8x20.

 

TIA

[ApertureS]

T25 and T45

 

Most have the half tray only so no rear screws to deal with.

[Atlantean]

7 minutes ago, ApertureS said:

T25 and T45

 

Most have the half tray only so no rear screws to deal with.

Thank you very much for this info, it's very much appreciated. I had a suspicion that they were T45 but I was also told T40.