I don't want to hijack this thread as my 2005 1.4 dsi has on occasion been reluctant to start. The last time I had driven around 50 miles on the motorway before stopping for around 20 minutes. On returning to the car I unlocked it with the remote fob, all doors shut then tried to start the car. The lights on the dash which are on all the time dimmed and the engine didn't even turn over. I turned the radio and the fan to try and reduce any other drain on the battery when starting, still no joy.
I don't know why, I then took the keys out of the ignition and using the remote fob, whilst remaining in the car, I locked and then unlocked the car. Then I tried the car again and it fired straight away as normal.
As my wife and I were out for the day going to many many shops with lots of stopping and starting I kept the use of electrics to a minimum. After around 5 good stops and starts in the next hour or so it was fine. On maybe the 6th it had the same problems and wouldn't start. Tried the locking and unlocking again and it started straight away. Odometer trip had zeroed itself.
Now I thought that the problem was due to the battery and already had one on order, not a lot of Honda Jazz batteries around in rural France, can't just go and pick one up. One of the reasons I thought it would be the battery is that before I got the car it had sat on my mothers drive and been allowed to go flat on several occasions. I had put it on charge before and to be fair to it had done well to last as long as it had. Today I fitted the new battery and the car feels a lot better to drive, more spritely, may just be in my mind but what I do know is the trip mpg meter is rising, noticeably. I thought the bad mpg was down to the weather!
Questions are, for people who know a lot more about cars than myself and/or something that may help people with the same problem.
1. Is there any connection between the central locking/battery/starting?
2. Would the battery affect the mpg?
I will update after a couple of weeks with if the problem happens again or has been sorted with the battery change.