I had an ’04 Micra, a 1.6 diesel one. It was fine for the first couple of years, then two weeks before the warranty expired it packed in. A load of electrics stuff had to be replaced in the engine, which would have cost just under £900 if we’d had to pay for it.
Sadly, that wasn’t the end of it. There were two recalls involving the central locking and ignition barrel. The EGR valve died. The rear wheel bearings went twice. The starter motor was replaced three times in two years. The wiper motor died. The ignition barrel had to be replaced two years after the recall. If we hadn’t have had the AA cover that pays for repairs to cover most of it, it would have cost us over £2000 over the years.
The car was regularly serviced, but completely died at five years of age, having done 74,000 miles. Admittedly that was partly the garages and our fault – I assumed they’d changed the cam belt on its last service as it was only two months and a few hundred miles off the recommended change by date in the service book, they didn’t because they weren’t told to.
The 03 – 07 diesel Micras are known to be the ropiest of the Micras – with the change from the old body shape they went into partnership with Renault, so they share a lot of the problems that the Megane had (ie dodgy EGR valves). Not sure whether the petrol Micras had the same issue, or whether the later Micras improved much.