C250D Estate - MPG?

[anonymous-user]

Hi,

I've had my 2014 C250D Sprt since November and I'm a bit concerend with the MPG I'm seeing.

My daily run to work is about 15 miles on B roads. I get about 29-35 MPG, which seems pretty low. I know a disel is not ideal for these kinds of journeys but I would have expected higher. My old A3 2.0 Disel use to get about 40-45 on the same road.

On long jounreys (100 miles+), with lots of motorway driving its not much better, around 40-42MPG - never higher.

Looking on the online figures I should see:
EC Urban 50mpg
EC Extra Urban 67mpg
EC Combined 58.9mpg

I'm not getting anythg like this.

Does anyone else get the claimed MPG - or is there something wrong with mine?

[anonymous-user]

Mine sits between 80-90c and had a new thermostat. The last one failed and jumped to 120c instantly.

I have it booked in the Merc to check if it's had a remap.. Other than that not sure what it is.

[Sheepshanks]

I recall (as I posted in it) same car in a similar recent thread: https://www.pistonheads.com/gassing/topic.asp?h=0&...


Was your A3 manual? If the B road journey has a lot of speed changes for bends/hills etc then the torque converter will be wasting a fair bit of fuel.

What speed are you doing on the motorway journeys?

[anonymous-user]

Yep the A3 was a manual.

I can only think of 2 small hills, the rest of the journey is pretty flat.

Motorway travel is normal 70-80 with and odd blip on two 😀

Thanks for the link, I'll have a read up.

[littleredrooster]

Sounds thirsty to me. The demos (which I deliver all over the country) usually give upwards of 50mpg no matter what, even with 'spirited' driving. Cabriolet is slightly thirstier.

[Raino144]

My 12/2014 C250d 4M (LHD) averages 52 to the gallon on a similar run to work, 15 miles, mix of 50/70 limit. Quite sensitive to temperatures - if it’s below about 15c can drop by 5 mpg. It also likes a drop of V Power - noticeable difference in performance and mpg on this.

[Bengt Axel]

I've got a 2016 C250D Sport saloon (a slightly later model I know) but even with my 'enthusiastic' driving style I average just over 50mpg. On long runs (80-85mph motorway cruising) I see 56, and even on town/b-road grinds it never sees worse than 45.

[NathWraithCupra]

My old C250 CDi estate managed an average of 45MPG, 2011 plate facelift,

This was mainly motorway commuting.