Hi. The car is a 2010 1.6 Petrol Exclusiv 113 - 64000 miles. From cold it runs perfectly but after a few miles it is intermittently loses power under load  - going uphill or accelerating hardish. It feels more like a general reduction of power than loss of individual cylinder(s) but I'm not sure on that. No codes are displayed while the fault is occurring and there are none stored, according to my local garage. I've read elsewhere on the forum of similar problems resolved by a fuel filter change