How do I find my engine code?

[læ-]

I have a golf mk3 1.9 tdi engine swapped in my car but I cannot seem to find the engine code. I have checked the engine for any emgravement and the timing belt cover but still nothing. So I searched the cylinder head code (028 103 373n) up and it seems it is for an AFN engine. Still I am confused if this information is correct or not. Does anybody have any idea where could I find the engine code?

 

[oilhammer]

Normally etched into the block, usually right below the cylinder head surface area, on the oil filter side of the engine. Do you see the flat place it would be? Often buried and not easy to see.

 

[oilhammer]

AFN engine code location - Google Search

 

[læ-]

Normally etched into the block, usually right below the cylinder head surface area, on the oil filter side of the engine. Do you see the flat place it would be? Often buried and not easy to see.

Thank you very much the code is there but its so rusty I cannot read it.