I have a 2015 Seat Toledo and my engine is a 1.2TSI CBZB.

I will be replacing the crankshaft sprocket when I replace the timing chain and oil pump chain. This is the double sprocket that drives both chains from the crankshaft. I have downloaded all of the relevant official procedures that I can find from the ERWIN system. I cannot see any mention of this sprocket, but I believe it is the correct thing to do to replace it at the same time; it also comes in the HEPU kit that I am buying, which indicates it should be part of the replacement. I haven't yet got the kit, as I want to add all relevant parts and tools to my order. Therefore without having the replacement sprocket in my hand, I can't see whether it has any kind of keyway to align it correctly to the crankshaft. I have watched the few videos that I can find where this part is replaced, but I can't see details of the alignment. I know it is an interference fit, and I understand how to pull it off and press the new one on, including warming up the new one to about 100 degrees to make it easier, but I am nervous about the alignment of it, and the fact that I don't have any info available in advance, as I won't want to mess this job up!

Any information, experience, or photos would be appreciated. Thank you!

Both crank and cam sprockets are free floating.

You fit the crankshaft sprocket 'wherever it lands', then the cam sprocket and chain are fitted loosely.

Locking tools fix the correlation between the shafts, then the cam sprocket screw is tightened to make the alignment permanent.

How many miles has it done?