My recently bought 147 ('02 with 52,000 miles) started cutting out at idle when warm while also sounding suspiciously diesel-like but there was also a strong vibration coming through the cabin (prior to cutting out).
The mechanic fixed the main problem, diagnosing it as a sticking variator inlet. The car seemed to be running fine (and the MCSF has been fine) but before long the vibration/knocking (and noise) started returning intermittently, only at idle and when the car has warmed up, but doesn't seem to be affecting the running in any other way.
Does this mean the variator is going to need replacing? It would make sense given the last owners didn't seem to give this car the attention it deserves but could there be any other cause?
If it is the variator, is this urgent given that it isn't simply a noise?
I've seen comments on vibration in other threads but none when the car isn't moving.
The oil filter seems overdue for a change, could that be a factor?
If anyone could give some advice I'd be very grateful...