2001 3.0d sport not starting

[thto]

Hi, I am New to this today, so apologies for trying to give all info...

I purchased my x5 2 weeks ago and have had trouble free motoring.

I have noticed that it took a little longer to start on the key than you would expect, however it has started everytime - until today......

After a 35 mile journey this morning the engine was switched off and the vehicle was left for 10 mins or so. On getting in and trying to start it all I got was the engine cranking over on the starter (albeit healthily).

After a short time and checking the fuel was pumping through at pressure I called the RAC, the guy came out and after a few turns of the key decided to squirt some 'easy start' into the air intake. The car started straight away and drove sweet as a nut the 34 miles back to the office (picking up some easy start on the way).

Back at the office it wouldnt start again, however, a squirt of easy start and we were away.

I had to use the car for some important meetings today and had to use the squirt on 4 more occasions, everytime the car runs smoothly.

My local garage seems to think it is a couple of injectors going down,(an over the phone analysis!) which they can replace tomorrow for about £500.00, I have noticed mention on other threads of fuel rail pressure sensors, could either of these be the answer?

Would anyone go for the sensor first?

Later in the day I did get a 'fuel injection system' signal on the check screen below the speedometer, which stayed on for the remainder of my journey, but reset when I revved up back at the office.

Any help please?