Recently purchased a Y62 series 5 Ti 4 months ago. After having it for 2 months we had an engine warning light come up on the dash. Called Nissan roadside assist who cleared the codes the we took it to a Nissan dealer who checked all the faults and said the battery was low and trickle fed the battery for the day. Everything was OK until a few days ago. Started car up, ran it for a minute, engine fan started coming on and off and then all the warning lights came on. Turned the car off then it would not restart at all. Left it for an hour and went back. Tried to restart but it just wound over. Tried again and it started but the only warning light now showing was the engine warning light. Plugged in the engine scanner to check codes (101), unplugged scanner and warning light disappeared. Took it to another nissan dealer who check the faults and everything passed. They tried to blame the accessories on the vehicle but we only have a redarc brake controller. Has anyone else had the same issues? Is it possible it could be something to do with the smart altinator not putting enough charge into the battery. It seems to happen when the vehicle has been sitting for a few days.
Cheers