Hi everyone!

 

I bought a Skoda Fabia II 1.4 Petrol and when driving the computer often shows a consumption of 15-20l/100km which is really high and I made 280km with 30l of fuel…

When I tried to use the gear shifting advice from the screen (and really driving like a grandmother) I managed to get 7-8l/100 but according to the screen i need to shift gears really early ( for example being on fourth gear at 40-50 kmh). The tires are brand new, the spark plugs and the air filter have been changed 4 months ago.

 

Please help 🙏🏻

It's a bit thirstier than I'd expect but if you want good economy then drive like a granny.

 

The problem is that the 1.4 16V engine likes to rev and if you drive it hard it loves it, but the fuel economy is poor, so take your lead boots off and drive it more carefully.

Thanks for your advice, so it seems quite normal? Or do you think maybe a sensor or something else needs to be checked?

Something is not quite right, you should be going quite a bit further on each litre.

 

According to spritmonitor, your exact car/engine/gearbox/year combination typically averages 6.5l/100km Gasoline consumption: Skoda - Fabia - Spritmonitor.de

There will be an element of self selection of those trying to be 'hypermilers' being more interested in being on spritmonitor than those who don't care.

 

Opening up the age filtering to include cars right back to 2007 with same engine size/power etc gives a similar average (6.8) with a far larger sample size: Gasoline consumption: Skoda - Fabia - Spritmonitor.de

 

 

 

Have you ever inspected the brake servo vacuum pipe for cracks at the junctions?

I am currently averaging 8l/100km with a best figure of 7l/100km but I drive like a granny in the highest gear the engine will comfortably run.

On a level bit of road I would be in 5th at 50kph.

Not yet

Not yet*, do you mean the black pipe in this photo : 

 

Yes. where the hard plastic is stretched over the connections it sometimes cracks and leaks air. This could affect fuelling and also the pressure level in the inlet manifold, possibly influencing the gear-change suggestions from the instrument cluster.

Lots of other possible problems though. I presume you don't have any warning lights lit? Do you have any way of reading engine fault codes?

 

Yep don’t have any warning light, by the way is it normal being between 2000 and 3000 rpm when driving? (Idling at approx 900)

Sadly I don’t have a obd..

Idling speed sounds high, let me see if I can find a 'book' figure. It could just be that someone has taken the instrument cluster apart at some point and put the needle back on the rpm gauge slightly wrong.

Now that you say this it seems that the speed gauge is also a little weird, it shows higher speed than the actual one  (for example 30 instead of 45-50)

I can't find a figure for your version of engine, the earlier BBY/BKY engines with manual gearbox suggest a range of 660-860rpm. If you had diagnostic capability, you could find a measuring block somewhere in the engine ECU that would list actual and specified idle rpm, which might give a cross-check.

 

Are your wheels/tyres a standard size for the vehicle? 

Maybe that’s a good direction.

About the tires I used what is specified by skoda, the only thing is that I noticed the tires are H instead of T (The previous owner sold it to me with H tires so I also used H tires)

The only sensor that could really affect consumption is the pre cat lambda probe, simply replace it if you can afford to.

Hey, just wanted to have a feedback on this : 

 

- There is some liquid on the timing belt.

 

- What about the oil, does it look normal?

 

 

 

Can't see the oil level on that photo really. That's your auxiliary belt, not timing. Identify the fluid by soaking some into a clean white rag or tissue.

 

Oh woops you’re right,thanks! What about the oil cap of the motor is it supposed to look like this? (With apparently little to no oil?)

Yes, all the oil should be at the bottom of the engine in the sump when it's not running. And you shouldn't be taking off the filler cap when it is.

Try to get a better photo of the level on the dipstick.

I’m not near the car but here is where the level was. (Not when the engine is running)

Oh, that's far too high if it's the true level. Did you pull the dipstick out, wipe it clean and then re-insert it, to get that reading?

Following this procedure is important.

 

Edited 8 August, 20232 yr by Breezy_Pete

Just now, Breezy_Pete said:

Oh, that's far too high if it's the true level. Did you pull the dipstick out, wipe it clean and then re-insert it, to get that reading. The first bit is important.

 

And does the oil on the dip stick smell of fuel at all?

Also be aware that holding the dip stick in an upward angle as shown in your image can give a misleading, high reading as the oil flows up the stick.

Breezy_Pete

Not this time to be honest but i pretty sure it was also like this few days before after I did it correctly (pulling/wiping/and checking one more time). Is it problematic and if so how can I remove some?

 

Warrior193

I’ll check it thanks for the advice!

Edited 8 August, 20232 yr by MeirSkoda

Check it again with a warmed up engine (e.g. at the end of a journey) 2 or 3 minutes after you switch the engine off.

Hope to see the level somewhere closer to my green lines here: