Car won't start, need some advice
I've got a 2007 1.9 JTdm GT, I had problems about month ago with car not starting and found out it was the battery that had died. Replaced the battery and that sorted things out so I thought until now. I went to start up the car and it would not start up and the lights on the dash were flickering from power loss. Car started up straight away with jump leads and took it straight to garage. Said battery and alternator was fine and maybe battery is draining for some reason. Battery was running at about 13V and alternator was reading 40 something. Told me to come back if it happened again. Later this evening it did the same again. Any reasons why my car just seems to lose power?