I have a 61 plate Ford Smax Titanium X diesel. It's been pretty solid but for the last 6 months it has had a problem starting.
It has keyless ignition. Recently when I've pressed the start button it just does nothing, nothing at all. If you keep pressing it then it might click like the starter motor isn't releasing. If you keep trying then it might turn over but won't actually start. Sometimes the boot unlucks and the hazard lights come on. If you're really lucky it might start but if it does you usually end up with some kind of failure on the dashboard (I've managed to get it started on to be told that the air bag has malfunctioned, sometimes that the traction control is active, even that I've spontaneously had a flat tire, front or rear parking sensors aren't working etc).
When this first happened I had it towed to a local garage who told me the battery was knackered. I had had a few low battery warnings previously so I paid up, and low and behold the problem didn't happen again for about 3 or 4 months, until this week, when it started happening again, but this time with no battery warning messages.
Things I've tried;
Jumpstarting the car - has worked sometimes but often not at all, so I think that might have been random chance.
Changing the battery in the primary and spare keys.
If this were a non-keyless car, and I turned the key and this happened, I would think it was a battery problem, or perhaps the alternator not charging the battery.
Any ideas welcome.
I'm due to take it to the local ford dealer but in the past they haven't been great when problems occur and only really seem interested in getting the car back out the door as soon as possible. Rarely do they seem able to interrogate the sensors or ECU to really get to the cause of an issue and seem happier to wait for some bloke called Bob to drive the car (normally for a great many miles) and see whether they can figure things out that way.