So my Signum 06 TDI elegance has always been a bit poor at starting first thing in the morning usually requiring a few goes, once warm however it will start on the first turn of the key. Now it won't start or turnover at all and there is a distinct clicking noise coming from the glovebox.

A few weeks ago for about two days the glow plug coil would come on then disappear after a ten minutes or so then it didn't come on at all

So I have ordered a set of four glow plugs to see if this will sort the problem.

Any thoughts?

Am I heading in the right direction?