This may have been covered before …EPC and EML came on suddenly with very rough running and limited throttle response. Nursed car to and from work. Despite the published descriptions of doom, I thought this may be due to low battery voltage. Very quickly discovered one of the battery terminals was not tightened. Everything now completely normal. Result!!

Excellent, check the basics first to save time, hassle and money and perhaps others being conned that more is need by whoever they might pay to sort things.

 

Any chance you could also post that in the Superb Mk2 forum as there are some on Briskoda generally than can't seem to accept such an easy and basic thing can be the cause or remedy for issues like this and other issues from just this.  And low battery is a good thought too that is beyond many's beliefs along with using a battery charger maintainer as recovery, or better still prevention (as the alternator can always take care of charging modern cars!).