So, I initially took a look at the engine and being a total engine noob, I bailed and then enlisted some assistance from my uncle who had every single ratchet piece on the planet. I tell you, he's got parts big enough to spin the planet itself, and parts small enough to perform microsurgery. In Metric and Imperial!
Anyway, in the end the job was indeed fairly simple although quite fiddly. We didn't have to remove anything except the plugs themselves. We found even the rightmost plug was easy enough to remove if you have the right angular ratchet bits to get in behind the dipstick holder. Catching the small 6mm screws that hold the plate to the plug was harder than removing the plugs themselves. It just took some dexterity of the fingers to catch them as they reached the end of the thread.
One tip I can offer is that I had in my toolkit an extendable magnetic pickup tool. This was ideal for getting the screws back on again as I could pop them on the end of the tool and get them started on the thread before switching to fingers and ratchet.
But now the important result. Replacing the glow plugs did indeed cure my starting problem. Admittedly I haven't had a very cold day since they were replaced - it's cold, but not freezing - but starting has been smooth as a smooth thing so far. I'm happy with the result.
What annoys me is I had the car serviced and told them of the specific issues. No fix. In fact, the garage claimed there was a rattle from near the fuel pump or water pump and I should see a diesel specialist. So I did, who changed the fuel filter, but still no fix.
So in the end, a quick Google, a hit on this site, this post, and this advice cures my ails. Thanks to y'all for your tips and info.
Reading the link TDCiST posted I'm now more convinced than ever I have glow plugs problem. Luckily it was a related post that lead me to the site in the first place so it's pretty much time for me to get stuck in and get my hands dirty :-)
Hi all. I'm finally sick of paying garages for tasks like this that sound like they really shouldn't be so difficult, so I'm going to change my glow plugs to try and combat a cold start problem.
The comments from "Reluctant Ford Owner" are brilliant sounding (thanks!) so I'm aiming to use it as a guide, though being of sub-amateur level when it comes to car mechanics I could use a little assist.
Since lifting the engine lid reveals (to me) a maze of mechanical wonder, would anyone be able to supply a quick photograph of the engine bay where the glow plugs are located just to give me a starter for ten?
I will likely have a mate on standby to help, but I'd really prefer to learn this sort of thing myself, you know.