I'm Thinking it could be the sprockets but I will take it back to the shop and see if they can find out what is causing this noise. Have a rattle when accelerating as well and I'm sure the source of the rattle and the ticking have the same cause. '11 L322 5.0 Supercharged - Bournville
'09 L320 4.2 Supercharged - Cairns Blue
'09 L320 4.2 Supercharged - Zermatt Silver
'05 L322 4.4 HSE - Alveston Red

@TorontoDee , I was informed the ticking sound (not rhythmic) could be either bad cam buckets or bad Supercharger Coupler. I have yet to replace any of these. The rattle on acceleration was diagnosed as engine pinging/pinking, and the car hesitates and RPM bouncing while driving. The technicians told me it is due to a failing engine vacuum pump, could that cause engine pinging? Or am a being fooled? New video clip attached for engine idle post timing job.

To summarise, I've been told that engine combustion is incomplete and that the air/fuel mixture is too rich due to faulty Vacuum Pump.

https://youtube.com/shorts/YF5j2e4LeN4 '11 L322 5.0 Supercharged - Bournville
'09 L320 4.2 Supercharged - Cairns Blue
'09 L320 4.2 Supercharged - Zermatt Silver
'05 L322 4.4 HSE - Alveston Red

Sounds the same as mine. Don't have any performance issues.

I had the coupler (and supercharger oil) done back in May (2024). Asked about the snout, informed it looked good.

Keep us posted

(I'm also reading the thread for this on the North American forum too) 2012 Supercharged L322