I own a Hyundai i30 (2007 model) with a 2.0-litre diesel engine. After a major service at a main dealer an advice note came back that the fuel pump was 'whining' and was 'on the way out'- replacement cost over £500.

I asked a local garage to listen for the noise and they could hear a whine but thought it was the pump working normally. They spoke to two specialists (not sure who) and they said they have never heard of a fuel pump failing on an i30 diesel. I am told that if the pump does fail the car will just come to halt and as I do a lot of motorway driving that doesn't sit well with me! What should I do?