Judder and warming light flash

[Ding]

Hi

So I was travelling along a dual carriageway today doing roughly 45-50 mph roughly and the car ( 2011 vrs)  was in 6th gear, I put my foot down slightly to overtake and the car juddered slightly and the “control system for exhaust” light started to flash yellow for roughly 5 seconds and then went off. Has anybody got any ideas. 

 

Btw the car has only done 45k and had the spark plugs changed about 18months a go. 

 

Thanks in advance. 

[Ootohere]

See the similar post where it could be the op,s spark plugs,   check them again,  but your exhaust emission might be the water pump/ supercharger clutch if not already replaced.  So the post bumped this weekend for that.