So, that's about 40mpg. How do you drive your car? The 1.4TDCI doesn't have a lot of power which means if you want to make good, quick progress you need to drive quite hard and therefore fuel consumption is going to suffer.
What revs do you change gear at?
Do you accelerate quite hard at all?
How many of you in the car and do you have much in your boot? (Weight is an MPG killer)
What speed do you cruise at on motorways?
What kind of roads do you drive on mostly?
Do you do mainly short journeys where the engine doesn't get a chance to get fully up to temp?
All of the above make a difference to MPG. 40MPG does sound low but driving style and conditions could easily make the difference rather than a mechanical problem. The 1.4TDCI is a low power city car and is designed to "pootle" about in. Drive it like a 1.6 petrol and you will get 1.6 petrol MPG!
That's a bit unecessary IMO.... If you're not happy with your brakes, get a second opinion from aother Ford daeler or from an independent garage. What's the mileage on your car? What cars have you had previously? Not all car's brakes are the same and remember that the Fiesta has drums on the back which are good efficient brakes but arguably less powerful than discs. That said, when I am driving my Fiesta economically it's very rare that I need to even use the brakes which makes me wonder again how fast you are trying to drive.
If you buy a car for economy (why else would you buy a 1.4TDCI Fiesta?) then you should drive it economically. Simples.
I always change gear at 2000 revs or just over
I don't accelerate particularly harshly but not slowly either, just the same as a normal person
There's no extra weight or extra people in my car either, it's just me to and from work
If I'm on a dual carriageway I tend to cruise around 80ish, sometimes 90 if I'm in a hurry... and I knowwwww you're going to say that this is what's costing me my MPG... but in my 1.4 HDi Peugeot 207, 60 plate, I drove exactly the same way and got about 600 miles out of 1 tank which cost the same amount of money, which is why I think this Fiesta is so God awful, because it can barely get over 300 driving the same way!? So that's half the economy...
And I pretty much do all motorway driving, never really any short journeys.
Also the clutch is terrible and can't handle being in traffic, as when stuck in London in traffic it pretty much starts to die and shudder whenever you pull away... and when you fully depress the clutch pedal while stationary it makes a tapping on your foot which is really irritating. Also when coasting in neutral the Revs don't lay idle until you come to a stop, whereas in every other car I've had when coasting in neutral the Revs would idle at the same speed no matter what the car was doing.
The mileage on my car when purchased was 17,000 miles... it's now on about 21,000 miles and I've only had it a few months. I do a lot of driving so I really REALLY notice the massive hole in my pocket that this thing is creating in comparison to the last car, which subsequently I only actually got rid of because it kept having problems over and over and over and I couldn't be arsed with it anymore. So now I've ended up with another car that also has problems people refuse to fix or admit to their existence.
From Bedfordshire to London and back used half a tank yesterday.. that's about 55 miles each way in total. What a CRAP "car".