Apologies this is where it gets a little vague. By this point I will be showing my ignorance about car technicalities.
About 4 years ago I got an engine light on. My local old boy garage told me not to worry about it as it was in their words not worth changing. Then just under 3 years ago I noticed that it was misfiring every now and then. This got worse over the next few months. I've checked the paperwork and all its states is "read fault memory.. Misfire on no.4 cylinder. Replace ignition coil. Fault still remains. Replace no2 and no4 injectors, fault still present. Check compression on no4 cylinder as it is low"
I took it to a local specialist, they confirmed fault (at this point I can't exactly remember what work was required) but they said it could be fixed for £1,500 - £2,000.
I really liked the car, but I think I've left it too long for it to be my everyday car as by now you've guessed my knowledge of cars is abismal and need professional support whoever something goes wrong.