Fuel Economy / Poor / Remap? - Diesel Engines (Mk4 Mondeo) - TalkFord.com

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Fuel Economy / Poor / Remap?

fuel remap mpg poor mondeo

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16 replies to this topic

#1 Kestrel_22

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Posted 26 December 2020 - 09:14 AM

Merry Christmas all

So the 2012 Mondeo 2.0 TDCi is seriously poor on fuel (to my surprise) first time Ford Mondeo owner... I swapped from my X-Trail because I was sick of getting 34-36mpg everywhere... Now I'm getting around 39.3mpg AVG over 2 tanks with a mix of 60/40 motorway/town driving. Is this normal?? I'm tickling the throttle everywhere and I can't seem to get anymore. Would an eco remap help these Mondeo's?

#2 stephenbennett1979

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Posted 26 December 2020 - 09:19 AM

Hi
For a comparison I’ve been getting 43.7 but I only do short journeys to work everyday (2 miles) when I go on long journeys (motorway) to family I can easily get it up too 50+


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#3 SteveyG

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Posted 26 December 2020 - 10:51 AM

Sounds pretty normal at this time of year. I don't think you'll ever get much more than 45 mpg overall even in warm weather.



#4 gaskell71

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Posted 26 December 2020 - 11:01 AM

Mk4 2.0tdci Mondeo driven gently, I'm getting 36mpg average. Just driven to work and back.

#5 ST56

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Posted 26 December 2020 - 12:33 PM

Hi

 

Not so sure on economy of newer Ford Diesel engines. Just using reset on dash of my MK5 2.0 TDCi at every fill as a guide, it is difficult to get reading above 40mpg. Admittedly this is mainly shorter local journeys due to current limitations on travel. I felt a little disappointed as choose the bi-turbo hoping for lower consumption at lower speeds when using small turbo.

 

My only other experience of a Ford diesel was previous BlueFined 2.2 TDCi in a MK3 ST. In all my ownership I don’t think I ever saw a reading under 40mpg. A figure that would climb to over 60mpg at a steady 70mph.

 

Have never checked accuracy of MK5 dash but miles per tank seem about right. As in earlier post it it easy to forget drop in economy figures during winter months.

 

Peter


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Previously Mondeo MK3 2.2 ST Tdci. (ST56MON).

Previously Mondeo MK2 ST200.

Previously Sierra XR4x4.

Previously Escort XR3i, Capri, Sierra, Escorts RS2000, RS1600, Mexico & 1300GT.
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#6 stonekeeper

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Posted 26 December 2020 - 02:08 PM

https://www.honestjohn.co.uk/real-mpg/

 

This is Honest John's real mpg checker

 

Using REG number gets your exact model

 

https://www.honestjo...ord/mondeo-2007

 

 

I can get 36 to 38mpg towing a 1400kg Caravan

 

I appreciate you saying you are careful with the throttle.

 

My other advice but can annoy  drivers behind you because they are usually thick and think you are being slow..

 

Try not to stop completely

 

The Mondeo is heavy so takes a good amount of effort/fuel to get it moving.

 

You can achieve the "Not stopping" by anticipating the traffic. As soon as you see somethng that will possibly bring you to a halt adjust speed by easing off, not necessarily braking to keep a gap in front that you can use to "coast" into until it's clear to use the throttle again.

 

The best way to describe it is,

Think about when you are sat at lights and a queue is in front and the light goes green, you can see it but are waiting for the car in front to move, you do that in reverse. You can see that a  car ten cars in front is going to have to stop why use fuel to keep up with it?

 

It takes a lot of concenttration but you can achieve many traffic light and rounabout successes when you don't come to an actual Full stop.even well sighted junctions (obviously not with a Stop sign) are possible

 

Literally the difference between a slow crawl at the end to moving off from stationary can save a lot of fuel.

 

Now you have mastered gentle throttle go for less braking,.the brake pedal uses more fuel than the throttle



#7 stonekeeper

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Posted 26 December 2020 - 02:20 PM

some may find this useful

 

 



#8 ST56

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Posted 26 December 2020 - 02:59 PM

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Hi

 

I like all the advise regards economic driving. Unfortunately living in Cornwall if you’re not cruising down a hill you’re climbing up one. This tends to seriously reduce potential for high economy numbers.

 

Peter


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MK5 Mondeo 5 Door Hatch 210PS Titanium X Full Bodykit on 19" Y-Spoke Wheels.
Previously Mondeo MK3 2.2 ST Tdci. (ST56MON).

Previously Mondeo MK2 ST200.

Previously Sierra XR4x4.

Previously Escort XR3i, Capri, Sierra, Escorts RS2000, RS1600, Mexico & 1300GT.
.

#9 frembrit

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Posted 26 December 2020 - 06:23 PM

Sounds about right to me too.

 

When I was researching the MK4.5 TXS to replace my MK2 ST24 (I miss that V6 :( ) I read from many posts on here that the 2.0 (163ps) diesel wasn't that great on fuel and that the 2.2 (200ps) wasn't much worse...which is why I went for the 2.2 for the extra power and torque considering it's much heavier than the ST24.

 

The best I've had from it was 44mpg but since I had the PCM update (to solve the turbo lag issue) it's never achieved it again, but over 7 years it's averaged 40mpg (calculated from each fill-up not from the computer, which isn't that far off anyway).

I don't know about the 2.0 but my 2.2 gets better economy when travelling about 50 - 60mph on A roads. At 70mph on the motorway, it's worse...so I don't do 70 (ahem :whistling: ). I think if I had a long-ish (20+ miles?) drive to work on an A road then I'd probably see 44mpg again, but I don't, not that I've driven to work since March.

As mentioned, it's winter now so economy drops anyway, though for me it seems to stay the same as I switch to 18" wheels and winter tyres from 19" wheels, not sure if that's a feasible option for you though.

 

Peter, my friend had a MK5 (210ps) powershift and he was getting 38-40mpg, and he generally doesn't hang about. His old MK3 2.2 was always over 45mpg. 

I was in Cornwall last year for a little holiday, I didn't find it affected my mpg too much...what goes up must come down again ;) ...I find that I can maintain a speed with very very light throttle (pedal moves what feels like 2-3mm) on slight downhill gradients. The instant mpg readout stays at 99.9mpg yet I can maintain 60mph and if I lift off then it does start to slow, obviously on steeper downhill gradients there's no need to press the accelerator pedal.

 

Good advice form Mark too. I try to anticipate as much as I can, when I can be bothered, and it does take a lot of concentration but after a while you do it without thinking about it too much really. 


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#10 PURPLE_2L_LX

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Posted 27 December 2020 - 08:47 AM

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some may find this useful

 

 

Only got 2 minutes into the video and he made the common mistake of change up as early

as possible....

 

I was taught the same but that often does not apply these days.

 

I tested my old MK3 2L diesel and at 40mph 4th gear used less fuel than

5th gear even though the revs were higher.

 

With the OBD reader plugged in it showed that 40mph in 4th gear only required 9%

throttle usage where changing upto 5th gear actually required 18% throttle with an

increase in fuel injected at the same time.

 

What works for you maybe different depending on the engines power output and

torque and the gearing.

 

I know the MK4 2L uses more fuel than the MK3 2L and 2.2L   2.2L averaged 59MPG on

a 300 trip to Cornwall where the MK4 only managed 52MPG.

 

MK3 2.2 was well over 60MPG all down the M5 but those Cornish hills sucked the fuel

out...


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