Hello guys,
I noticed a rattling sound driving my fathers Jag xe r 3.0 sc. I recorded some videos. Sound is like a grinder/chain saw and it is pronounced more when accelerating and is somehow rpm coherent.

https://youtu.be/S6hTjRsWT6s?si=REIT2nhqa_9sb_7i

https://youtu.be/6d1XBxLKCHQ?si=_3RSZKBPJe63p0la

does anyone know if that could be related to SC coupler? Timing chain? Earthing strap and fuel pump noise?

 

Sounds like the ground cable to me. Buy an earth strap to extend the ground cable, takes 5' and costs almost nothing.
They're rattly engines though

 

Problem solved with 50mm2, 20cm braid cable thanks.