Helps For C3 Hdi 16v

[Monkeynuts]

I've just bought a used C3 HDI 1.4 16v which is 03R and has done 37,000 miles. So far, this car is very good compared with my old ford fiesta. But there are still two small problems upsetting me.

 

The clicking noise always comes from somewhere behind the dashboard when I am accelerating the car. It's quiet and normal when the car is sliding and no fuel is given. It seems some parts are loose and affected by the vibration of the engine. Anyone ever met the same problem?

 

One of reason I bought this car is its high mpg(65 mpg). But this car never reached the claimed data. It's approximately around 55 mpg. I am a motorway user and the average speed is about 80miles or higher. So are there problems with the car or cos I drive too fast.

 

thanks!

[Guest CE05LDB]

Over 65mph the car uses 25% more fuel. Now my mates C3 1.4HDi 70BHP is doing 50.3mpg but there again his has only done 6,500 miles in over 2 years so it hasn't really run in.

 

In my C3 1.6i 16v if on the Motorway I get between 47 - 50mpg and I do keep at 70mph.

[Monkeynuts]

This is my first diesel car. So no idea how economical it is really. Saw someone said he could do 600 miles using a full tank. I wonder how he did it. The point is who will drive on the motoway under 65mph.

[Guest GarthyB]

This is my first diesel car. So no idea how economical it is really. Saw someone said he could do 600 miles using a full tank. I wonder how he did it. The point is who will drive on the motoway under 65mph.

 

He did it by removing the tartan blanket from the parcelshelf to reduce weight and by driving at a constant 56mph everywhere (motorway, dual carriageway, towns, past schools, etc.) to avoid acceleration! :lol:

 

Seriously though, the missus had a C3 1.4 16v HDI and got an average 55mpg everywhere, and she liked her right foot! So your 55mpg average is about right.

I drove like a pensioner once, in her car, and averaged 61mpg, but it upset the queue of traffic behind me so much I never did it again.

Manufacturers figures are to be taken with a pinch of salt. They are normally achieved on a banked test track carried out a constant speed with the absolute minimum of fuel in the car.

 

You could try to match the manufacturers figures, but expect some road rage!

[Guest CE05LDB]

Now I don't drive slow I am always over taking something but my C3 Petrol is still good on fuel.

[stimulator]

My average MPG on the dial is 61.4 and I do not hang around however if you drive hard and keep changing down to get rapid acceleration the MPG will drop off rapidly too.

 

I never go below 40 mph in 5th but will try to get into 5 by 45 to 50. the engine is excellent in its ability to accelerate the car fairly rapidly BUT and it's a big BUT, never floor your accelerator squeeze it down as you will get a better response from the turbo.

 

Ah yes nearly forgot, when my tyre pressure went down by .3 bar (4 psi) the MPG dropped by 4 mpg. Always check that your tyres are at the cold pressure shown on the door jamm

[french connection]

I have a Citroen C3 1.4 HDI 16v Exclusive please can someone confirm what the correct tyre pressures should be front and rear in P.S.I? thanks in advance. Just to add to the fuel economy debate I have since new its an 03 plate never been really happy with the fuel economy but having read the posts on here I agree the manufacturers claimed MPG is unrealistic in the real world I can never get 600 miles out of my tank no matter how I drive it, I usually get 550 at the most which is the best I can get.

[Monkeynuts]

I have a Citroen C3 1.4 HDI 16v Exclusive please can someone confirm what the correct tyre pressures should be front and rear in P.S.I? thanks in advance. Just to add to the fuel economy debate I have since new its an 03 plate never been really happy with the fuel economy but having read the posts on here I agree the manufacturers claimed MPG is unrealistic in the real world I can never get 600 miles out of my tank no matter how I drive it, I usually get 550 at the most which is the best I can get.

 

You may check the tyre pressures from the body near to the left-side door. Open the door, you would see a tag on the connection between the door and the body.

 

The data of my car on it is 2.1(f) and 2.3® under the normal load and 2.1, 2.8 under the full load.

 

By the way, I have been able to do the 600+ miles when I always stick to the speed under 75MPH.

[Guest roy collingwood]

You may check the tyre pressures from the body near to the left-side door. Open the door, you would see a tag on the connection between the door and the body.

 

The data of my car on it is 2.1(f) and 2.3® under the normal load and 2.1, 2.8 under the full load.

 

By the way, I have been able to do the 600+ miles when I always stick to the speed under 75MPH.

 

tyre pressurs always confuse me, when they say 'pressure for full load' do they mean while there is a full load in the car, because surly when there is more weight in the car, the tyre pressures read higher?

[smokescreen]

tyre pressurs always confuse me, when they say 'pressure for full load' do they mean while there is a full load in the car, because surly when there is more weight in the car, the tyre pressures read higher?

 

From memory Pressure is proportional to Temperature and Volume so extra weight in the car won't affect the actual psi/bar reading . The higher pressure is to stop the tyre deforming - going very flat at the bottom!

 

Regards

 

Smokescreen

[shallishanti?]

With more weight in the car, the suspension compresses more, not the tyres, so your tyre pressures remain the same.

[stimulator]

The tyres on your car are decided upon by the manufacturer dring the design and build stage. You will see that the same spec tyre on your car will fitted to many others but the running pressures may be different. This is all to do with the cars kerb side weight.

 

So the makers place a sticker on the door and in the handbook is a page of pressures.

 

the really important thing is that these are only checked when the tyre is COLD as any rise in temp will increase the temp. Try it park your car with one sid ein the sun the other in the shade and see the difference in temp

 

When the car is moving the tyres temp increases and hence the pressure.

 

Full load is usual teh max number of passengers plus some luggage.

 

If your tyres are deflated (under pressure ) then the rolling resistance increases and the car needs more power to overcome the friction and the MPG will go down.

 

Flatter tyres does not help with drivability in fact the opposite occurs as the side walls will flex too much and prolonged running under inflated will wear the outsdie edges off the tyre. Over in flation will wear the centre of the tyre and make the handling skitish the side walls being too stiff.