Synergie 2.0 hdi knocking - increasing as engine warms up

[pookytech]

I tried to listen to the injectors, head area and hp pump with stetoscope but the noise doesn't seem to come from there. It's not present when cold and gets louder as the car gets warmer. I don't see any oil pressure data in Lexia as that's what I thought the issue might be. There oil pressure lamp does not light up when engine is on. The only persistent code is P0100. Disconnecting the MAF plug makes no difference. I have attached some read outs from Lexia in case any of you might spot something odd. Cheers.