[NorthantsPete]

I dont think its the turbo itself but i do think its the sensor or mechanicals that get stuck.

I think they get fouled/stuck when driving constant speed for long durations.

I think t the only way is premium fuel full time, but we start today with that theory. Big additives help but only temporarily.

So maybe it will be premium diesel + monthly shot of toolstation

Funny thing is the LOAN car had EXACTLY the same problem! d5, but s60


Cheers