XC40 2.0 B4 FWD mpg issues
Posted: Wed Feb 24, 2021 5:24 pm
Hi all,
Been a long time since my return to forums but this question has made me join to share my opinion.
In December i took delivery of my brand new XC40 2.0 B4 FWB R-Design pro. Changing from a VW CC 2.0TDI "140" returning me between 35mpg to 60 mpg at each extreme. So driving from flat out to major eco driving.
So the volvo being a petrol, I knew the fuel economy wasn't going to be the same but going by the advertised 38.6MPG i knew at worst this would return me 28mpg and if I drive on super eco mode with 55mph on motorway it would probably return me 40-45mpg tops.
So having done 1300 miles in the car and due to lockdown restrictions, my long journeys have been few and far between but i have managed to test on a 50 mile journey with half at motorway speeds on eco mode using cruise control at 55mph this was returning me 33MPG (This was gentle driving)
The dash displays the total average MPG since new and it is showing 23MPG I am not here to moan about the mpg but for some reason this is alarming me to think that something is wrong. I then fitted my bluetooth obd device and log through the Torque app on my android device to see if this was showing the same as the cars display. This app is wonderful and gives a faster response to the real time data and when under load.
So I then start to think to myself time to read up on the engine as I find out the car is a "Mild Hybrid". Well this is exciting i didnt even realise this what does this do lets go to the volvo website and check it out "48v battery in the boot that charges from brake regeneration and gives a swifter more economic pull away from stand still. Ok then if a more economic pull away from a 48v battery and a belt system on the engine and when you slow down the deceleration re-charges the battery. Very little info on exactly how this works so I would call the dealership hoping to get some keen sales guy on the phone that know all about it. They didn't know how it worked and told me to book car into the workshop to check the mpg issues. I know how this system works I have worked in dealerships and they would drive it round the road and state everything is ok and give a diagnostic check and state the ecu and electronics are fine.
I then pointed out that under the individual drive mode you can specify the braking characteristics to suit your driving style. I then said could this regen mode but putting the engine under too much load during the drive and be causing the the horrific MPG figure?????!!!!!!
I don't know he told me to book it in but i have now come to the forum to see what people are getting MPG on there B42.0 petrol engine's before i start to go down this crazy path of moaning about a few MPG's. I wasn't too keen on the car to begin with but its growing on me and just wanted to share me experience.
thank's
Paul.
Been a long time since my return to forums but this question has made me join to share my opinion.
In December i took delivery of my brand new XC40 2.0 B4 FWB R-Design pro. Changing from a VW CC 2.0TDI "140" returning me between 35mpg to 60 mpg at each extreme. So driving from flat out to major eco driving.
So the volvo being a petrol, I knew the fuel economy wasn't going to be the same but going by the advertised 38.6MPG i knew at worst this would return me 28mpg and if I drive on super eco mode with 55mph on motorway it would probably return me 40-45mpg tops.
So having done 1300 miles in the car and due to lockdown restrictions, my long journeys have been few and far between but i have managed to test on a 50 mile journey with half at motorway speeds on eco mode using cruise control at 55mph this was returning me 33MPG (This was gentle driving)
The dash displays the total average MPG since new and it is showing 23MPG I am not here to moan about the mpg but for some reason this is alarming me to think that something is wrong. I then fitted my bluetooth obd device and log through the Torque app on my android device to see if this was showing the same as the cars display. This app is wonderful and gives a faster response to the real time data and when under load.
So I then start to think to myself time to read up on the engine as I find out the car is a "Mild Hybrid". Well this is exciting i didnt even realise this what does this do lets go to the volvo website and check it out "48v battery in the boot that charges from brake regeneration and gives a swifter more economic pull away from stand still. Ok then if a more economic pull away from a 48v battery and a belt system on the engine and when you slow down the deceleration re-charges the battery. Very little info on exactly how this works so I would call the dealership hoping to get some keen sales guy on the phone that know all about it. They didn't know how it worked and told me to book car into the workshop to check the mpg issues. I know how this system works I have worked in dealerships and they would drive it round the road and state everything is ok and give a diagnostic check and state the ecu and electronics are fine.
I then pointed out that under the individual drive mode you can specify the braking characteristics to suit your driving style. I then said could this regen mode but putting the engine under too much load during the drive and be causing the the horrific MPG figure?????!!!!!!
I don't know he told me to book it in but i have now come to the forum to see what people are getting MPG on there B42.0 petrol engine's before i start to go down this crazy path of moaning about a few MPG's. I wasn't too keen on the car to begin with but its growing on me and just wanted to share me experience.
thank's
Paul.