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Fuel Filter change and drastic fuel consumption

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12 hours ago, automass said:

Front brake disks r bit hot after deiving 7hours..but not that hot hot..alloys r all ok only front twos are not cold not hot.

 

Rules them out as an issue then......

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  • Simple, the test has very little to do with real world usage.   Why do you think changing the fuel pump or fuel pressure control valve will increase the fuel efficiency?   Rather t

  • I would be tempted to Brim my tank, drive 50 miles or so having zeroed my mileometer and Maxidot then brim again and see the actual miles per gallon,  or miles per litre used.

  • It wouldn't. I suspect it's the placebo effect.   Sometimes the flow and return pipes can loosen on the lid of the fuel filter housing, resulting in a leak, but this would be easy to see.

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Yes, i made it sure,everything was clean inside. I watched the video..

Honestly, you’re a bit stuck. Short of putting a new filter in there to see if you have a bad filter I don’t know what to suggest.

 

going from winter tyres to larger summer tyres has just killed my fuel consumption, so you might just want to double check nothing else changed at the same time.

I still cant believe theres anything wrong. Any fault with the fitting of the fuel filter would cause issues with the running of the car.

Edited by Saints92

17 hours ago, Saints92 said:

I still cant believe theres anything wrong. 

 

Something's not right.................But it might not be the car. ;)

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On ‎07‎/‎05‎/‎2019 at 09:17, Tilt said:

 

Something's not right.................But it might not be the car. ;)

 

I don't know how to make you guys understand. but honestly speaking I had the similar car (63plate)..so I can easily compare my car's fuel consumption and again I drove this car 4/5days before changing the fuel filter and I haven't had any concern.  Without any heater or A/C on the consumption is 38-42mpg in mixed city drive for the whole 40liters fuel where as I used to get 48-52mpg with the other car. Well, don't know what's wrong. I will get the brake fluid change within few days. I may ask them to check the brake bindings.

I think the most obvious causes have been suggested. You need to start making proper fuel consumption measurements and getting parts tested/checked...

 

The engines have probably changed from Euro5 to Euro6 between the '63 and '16 plate cars so making a direct comparison isn't valid.

4 minutes ago, langers2k said:

I think the most obvious causes have been suggested. You need to start making proper fuel consumption measurements and getting parts tested/checked...

 

The engines have probably changed from Euro5 to Euro6 between the '63 and '16 plate cars so making a direct comparison isn't valid.

 

This!!!!  Please don't use the on board reading as a fair comparison.  It can be wildly out especially after performing maintenance on the fuel system.

As you only drove the car for 4/5 days before changing the filter you cant really use that time as valid data either.

 

As you are starting to get (possibly) unfair comments, I would suggest taking the advice on here and using an app or calculator to work out the proper average over at least 3 tanks.  This will give you a good baseline.  My old mk2 1.9tdi used to over read by about 10% where my mk3 2.0tdi burns more fuel and the reading is more accurate causing the on board reading to be massively lower (46 compared to 60).

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1 hour ago, langers2k said:

I think the most obvious causes have been suggested. You need to start making proper fuel consumption measurements and getting parts tested/checked...

 

The engines have probably changed from Euro5 to Euro6 between the '63 and '16 plate cars so making a direct comparison isn't valid.

Making direct comparison is valid because official MPG remains same for both of this car even though it is euro6. I spoke to skoda and they confirmed me this.

1 minute ago, automass said:

Making direct comparison is valid because official MPG remains same for both of this car even though it is euro6. I spoke to skoda and they confirmed me this.

 

I disagree.  A change in emissions regs will make the car perform quite differently regardless of the official MPG claims.

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1 minute ago, MarkyG82 said:

 

I disagree.  A change in emissions regs will make the car perform quite differently regardless of the official MPG claims.

Common man!!! you have to admit they know better than us..they can not just manipulate what they want. they did reduce in tyre size which is 16inch now compare to other one I had which was 17inch. this is just an example...may be there are many other adjustment they made to keep the MPG same.

1 minute ago, automass said:

you have to admit they know better than us..they can not just manipulate what they want. 

 

Are you not aware of the dieselgate scandal?  It proves that they can do what they want.

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2 minutes ago, MarkyG82 said:

 

Are you not aware of the dieselgate scandal?  It proves that they can do what they want.

I don't want to go in any argument. I believe what official figures says is to be correct. even I was getting more than what I am getting now..well, we are going back to the loop of argument and for me to be advised to keep the record of consumption. I don't intend to do it as I know already it is consuming more than usual. but still i'll try.

8 minutes ago, automass said:

 I believe what official figures says is to be correct

In over 40 years of car ownership I've never got anywhere near the official fuel consumption figures, and most owners will say something similar...

 

Having worked in an automotive consultancy I can say that even the engineers who carry out the tests didn't expect them to be in any way achievable in the real world.

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2 minutes ago, PetrolDave said:

In over 40 years of car ownership I've never got anywhere near the official fuel consumption figures, and most owners will say something similar...

 

Having worked in an automotive consultancy I can say that even the engineers who carry out the tests didn't expect them to be in any way achievable in the real world.

 

Are you guys trying to pull my leg! My argument is not what you said. my argument was my MPG dropped down since the fuel filter was changed by myself which is kind of mysterious. so I am seeking advice what could be the potential cause. I never DREAMT of getting official MPG. Don't get me wrong.

OK.  we'll forget official figures.  Still I wouldn't expect to get the same from euro5 or euro6 engines even of the same capacity and stated performance. 

I have been following this thread but please forgive me forgetting, have you had it confirmed that the correct fuel filter was used and that it was fitted correctly?  Even confirmed by you.  Have you also tried refitting the old one or the new one to confirm nothing is misplaced.  Is there a priming procedure that needs to be followed either mechanically or using vcds/obd11?

@automass

You never showed that you knew how many miles to the litre you were getting from collecting the car, zeroing the Maxidot, brimming the tank and covering miles before brimming again, then changing the Fuel Filter.

 

You said the car was using 3 times as much fuel which clearly it is not.

 

You seem to be stressing yourself over a car that seems to be running just fine, just not getting the economy you expected.

 

?

How much time does your car sit ticking over, and how often is it doing regens?

IMG_20190307_103754.jpg.ce1ea50832d9c64e5c588065ab27b162.jpg

Edited by Skoffski

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2 minutes ago, MarkyG82 said:

OK.  we'll forget official figures.  Still I wouldn't expect to get the same from euro5 or euro6 engines even of the same capacity and stated performance. 

I have been following this thread but please forgive me forgetting, have you had it confirmed that the correct fuel filter was used and that it was fitted correctly?  Even confirmed by you.  Have you also tried refitting the old one or the new one to confirm nothing is misplaced.  Is there a priming procedure that needs to be followed either mechanically or using vcds/obd11?

 

The car was taken to skoda and had a major servicing which include change of oil, fuel filter, air filter, cabin filter etc. they ran the diagnostic as well but couldn't find any fault.

You said in a post that they never changed the pollen filter or fuel filter so you did.

 

?

Have you looked at the Air Filter and checked it was replaced?

Edited by Skoffski

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1 minute ago, Skoffski said:

?

Have you looked at the Air Filter and checked it was replaced?

I checked it..it was totally new. 

?

So was it a Main Dealer Service before you bought it, and then after you changed the fuel filter a Main Dealership tech putting the car on the diagnostics?

 

Car must be fine.   How many miles covered before you bought it and now after the length of this thread?

How many litres bought in that time?

Screenshot 2019-05-09 at 10.13.14.png

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6 minutes ago, Skoffski said:

@automass

You never showed that you knew how many miles to the litre you were getting from collecting the car, zeroing the Maxidot, brimming the tank and covering miles before brimming again, then changing the Fuel Filter.

 

You said the car was using 3 times as much fuel which clearly it is not.

 

You seem to be stressing yourself over a car that seems to be running just fine, just not getting the economy you expected.

 

?

How much time does your car sit ticking over, and how often is it doing regens?

 

 

when I first drove the car I set trip meter to zero and I was keeping eyes on infotainment system at 'fuel consumption since start' figure. The figure was pretty similar to my old car. but to be honest I didn't brim the tank to full and didn't get proper calculation until I found the consumption increased since the fuel filter changed. 

Is this a Taxi / Private Hire car?

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The car was serviced always from main (same) dealer. when I bought it was 89k and now is 92k.  yes it is private hire car but part time.

Edited by automass

6 minutes ago, automass said:

 

when I first drove the car I set trip meter to zero and I was keeping eyes on infotainment system at 'fuel consumption since start' figure. The figure was pretty similar to my old car. but to be honest I didn't brim the tank to full and didn't get proper calculation until I found the consumption increased since the fuel filter changed. 

 

This takes us back to it being difficult to compare the before and after filter change figures.  What calculated figures are you getting now? (not on board reading). 

Please don't take it that I am criticising your driving but the gearing could be different with it being euro6 and maybe your style doesn't help it if you are used to the old car.  It took me a year to start seeing good figures from mine anywhere near what I expected when I changed from mk2 1.9 to mk3 2.0.

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