many methods exists - impact works fine for me.
to remove pulley you'll need special tool:
Now you'll see rather ugly AC bracket that blocks access to pass side cover:
and also condition of your crank seal.
Unbolt bracket and you have access to another timing chain cover:
And chain tensioner gaskets (I used gasket sealant on those ones):
remove cover, clean it up, replace gasket and rubber rings.
While there replace gaskets seals for oil bridge
NOTE. There's typo in PET - you'll need 4 999-7-1-909-40/17 seals, not 2 as it says,
also 999-707-288-40/213 is black and one that you most probably will see in the car is orange.
Also, replace chain tensioner gaskets at same time. I used gasket sealant on those ones cause they tend to warp:
