www.youtube.com/watch?v=k78LB4TRbSg

Any ideas on what it could be? Mum kept saying it "kept losing power" but she's only just managed to replicate it for me in my presence. She says it can do it whilst driving along, it feels like it loses power and sometimes stalls. My limited knowledge things its either turbo related or air sensor?

Its just had a service whereby the fuel filter was changed along with the usual culprits. It was doing it before the service too so nothing has been upset.

Cheers