Better mpg

[artyman]

Went for a trip to Silverstone for the BTCC Media day on Thursday and managed around 47 mpg on the trip back abot 45mpg going. This is the longest trip I've done since getting the car. I'm a light footed driver but whereas I could acheive the published extra urban figure from my Skoda Octavia, there is no way I can get near the published Merecedes figure which seems to me a work of total fiction!

Had a good day though, I was amazed at the speed these guys travel, it doesn't seem as fast when on TV. These are some of my first ever motorsport shots.

 

[dillo22]

cool pics!

 

[ironsheik]

Hey Artyman.. i've noticed better mpg recently, maybe its the warmer climate.. whats your total mileage so far? I have the same model as yourself..

 

[rascalmaster]

Definitely noticed the better mpg as well; family day down to lakeside; 51.5 mpg in my E280 CDI... was as snails pace though ;-)
bring on the summers!

 

[artyman]

It's done 23K so far it's due a B service shortly

 

[Dieselman]

Had a good day though, I was amazed at the speed these guys travel, it doesn't seem as fast when on TV. These are some of my first ever motorsport shots.

Notice the rear wheel has lifted so stalled under braking.

 

[s88]

"there is no way I can get near the published Merecedes figure which seems to me a work of total fiction!"


I think they are, though they say achieved in a lab/rolling road.

Father in law bought a clc and got no where near the figures; his mate has a BMW 1 series and gets what it says in the book! a lot more than the Merc apparently.

 

[Bobby Dazzler]

"there is no way I can get near the published Merecedes figure which seems to me a work of total fiction!"


I think they are, though they say achieved in a lab/rolling road.

Father in law bought a clc and got no where near the figures; his mate has a BMW 1 series and gets what it says in the book! a lot more than the Merc apparently.

Explained here:

VCAcarfueldata.org.uk - FAQ's

 

[artyman]

Notice the rear wheel has lifted so stalled under braking.

I think it's front wheel drive so hasn't stalled, just locked the unloaded rear.

 

[fah320]

The urban test cycle is carried out in a laboratory at an ambient temperature of 20oC to 30oC on a rolling road from a cold start, i.e. the engine has not run for several hours.

This is the main difference; most of us start at a really cold engine in the morning; has not run for 12 hours on the average and in winter we start at 0oC to 10oC maybe colder; then make about 15-20 miles which is not even enough to get the car at properr working heat. Then we stop and the car waits again for about 9 hours in cold weather and we drive back home.
Therefore it does not seem possible to get the published figures....

 

[johny5_uk]

I think you should look at the obvious, ie others give urban, extra urban figures and the point is that other cars figures may be achievable on the roads.

I took a 530 out for a drive a month back for about 30 minutes and managed to achieve their quoted figures almost instantly.

EVERY car's data is derived from clinical rolling road environments but why does it appear from this forum that the majority are not able to achieve MB's quoted figures?

I would suggest that MB take their vehicle's to BMW's labs and lets see what BMW say the mpg's are and vice versa!

 

[Ullevi]

BMW may be good at giving real world estimates of fuel consumption, but MB are not the only ones where official figures have been difficult to replicate on the road.

I haven't had my MB for long so haven't calculated fuel consumption yet, but from past experience I can say that I found it hard to get near official figures in Lexuses and Saabs, esp Saabs IIRC. I had a 9-5 Aero which I sold in 2005 which got nowhere near its published figures. Having said that it did get driven fairly hard whenever possible!

 

[st4]

I usually better the figures without having to try too hard and when pressing on I am not that far off them.

Nice pictures BTW

 

[kusanku]

This is an interesting ongoing thread. My experiences over the last three Mercs have been that my 210 series E320cdi gave good motorway mileage, although the urban figure was a lot lower. When I switched to a 211 series, which still had a straight six 3.2 engine, I got considerably worse mpg. I got nowhere near the official figures.

Now have the CLK with the V6 engine, which has a reputation for being thirstier than the straight six engine. Published figures are FUEL CONSUMPTION: (urban) 26.9mpg / (extra urban) 46.3mpg / (combined) 36.7mpg

Bizarrely enough, I would say I actually get these figures. On a prolonged stretch of the M4 where there was a 50mph limit in place, the trip computer showed 52mpg at one point, although this rapidly reduced to 46 once I speeded up again. This is all based on the trip computer though, which probably errs on the side of generosity.

 

[artyman]

I keep a note of my mileage between fill ups and usually buy 10 gallons at a time, so it's been around 40mpg pretty consistently in the 9 months I've had the car.

 

[Dieselman]

200Cdi engines aren't renowned for good economy due to having to work harder. The 220 achieves better economy.