c350 cdi vs c350 cgi real world mpg????

[gIzzE]

I think you have to get at least 40% more to justify a diesel, and I just don't think they get that much more any more.

Old days of 1.8T vs 1.9tdi where you get 25 vs 50 it was worth it, but these days you are talking 30 vs 35, or 38 v 42, then it just isn't.

An advert will be going up and the hunt for a petrol will ensue.

 

[Peter DLM]

Well, I'd have a drive of one first, just to make sure I still think that the 265hp CDi would give you the 40% advantage you need.

 

[Dieselman]

Right, the diesel has to go.

Someone want a nice 10 plate E350cdi estate for under £23k?!!

What output engine is it?

 

[Deleted member 37751]

Well, I'd have a drive of one first, just to make sure I still think that the 265hp CDi would give you the 40% advantage you need.

I couldn't thrash 30mpg out of that 265bhp E350 CDi that I had.

It was quiet as a mouse and had more than enough power/torque.

There are certain people that have a laughable snobbery when it comes to diesels, yet for every leap that the petrols make in mpg, so do the diesels.

Some of the figures quoted for diesel cars on here are diabolical, mostly it's down to crap driver awareness and then they wonder why their consumption is so bad.

I've come to the conclusion that I need one of each though...

 

[gIzzE]

What output engine is it?

231bhp.

To be fair, I really like it.

But right now I am spending £350 a month on the car and £400 a month on fuel.
I could do with cutting that back to £400 all in while my daughter is at Uni, buying another S210 for a couple of grand would be perfect.

 

[gIzzE]

This is my car...

http://www.mbclub.co.uk/forums/members-gallery/133508-my-e350cdi-estate.html

 

[Dieselman]

231bhp.

That's the problem, the 231bhp models seem to drink diesel, probably due to the DPF regurgitation too often.

I was following a Passat last Saturday evening on the M1 and thought the turbo had blown as it was chucking blue smoke out for so long.

 

[gIzzE]

There isn't that much in it. I was adamant that I was going to have a 265 7G+ model, however after trying the two back to back there was 3mpg in it on the 20 miles run we went and the speed difference was negligible.
There was £10,000 difference in the price for the year newer car.

 

[cv65user]

currently been driving a 2009 c350 petrol , 5 door , 7g auto box. 268bhp version
getting 20mpg in town and 30 mpg on long run so TBH its about the same of a 2 litre golf GTI fuel consumption. so petrol wise its ok apart from the 485 road tax!

a bit dissapointed when theres a 305bhp vers around the corner.
does anyone know the difference?
could I just stage 1 re map mine to 300 bhp ?

 

[C320]

I don’t usually read threads from start to finish but when I do...

Anyhow, it gave me a lot of food for thought. I love 6 pots and I am considering a C350 (W204). Interestingly the comments on the difference... well it hasn’t changed much. For me it would be £7.20 a tank.

I have been running a BMW 435d X Drive Coupe since 2015. The EGR problems don’t fill me with confidence. We also had a BMW 320d Sport (2014) and part-exchanged it for a C250d (2016) for my lesser half. It’s not too bad to drive. My wife certainly likes it as she wanted a break from BMW. It’s not my cup of tea though. I have been into 6 pot engines since my first inline 6 around 5 years ago.

I’ve been missing petrol though. The hushed sound compared to a diesel. I think 8 years of diesel has been a lot.

My 435d nets around 400 miles a tank. When I had my 325i (naturally aspirated) it was 300 a tank but probably a lot more enjoyable. I wonder what a Mercedes 6 would be like. I want to try and test drive one soon. I am going on a bit but anyway... hope to report back after a test when I get a minute.

 

[jdrrco]

As old thread resurrections go, this must be up there with the best of 'em.

But, for what it's worth, I have switched from 320CDIs and even a 220CDI to a 4.7l V8 twin turbo petrol, but, as I now do fewer than 8,000 miles pa (1,800 of which are on the annual pilgrimage to the Loire Valley), the difference between 21mpg average and 40mpg average is negligible (in spite of being very nearly half).

However Alice in Wonderland that may sound, the point is that everything depends on your driving habits.

Whilst I may be paying almost double the amount in fuel costs, the fact that I'm not destroying a DPF each year more than compensates. Not to mention the magnificent burble, sheer delight and subsequent huge grin on my face for every single mile travelled...

 

[gIzzE]

Haha, interesting thread.

I swapped my E350 cdi for the 306hp E350 3.5 V6 petrol. Ran it for 2.5 years and some 50,000 miles or so.

It averaged a true 31mpg compared to a true 33.6 the E350cdi returned. The E350cdi used to say 38/39 on the obc.

I would love to have said that with petrol being cheaper than diesel it was actually cheaper but it only got 31mpg on 98/99ron.
On 95 ron it was 28mpg.

Also, I rolling roaded it with 98 Shell and it showed 302hp and with 95ron it was 286hp I think it was, not much, but you could certainly feel it felt like it lost some sparkle down low on the regular petrol.

The E350 was in a different league refinement wise to the E350cdi, also so much smoother on the throttle round town, and then when you wanted to play above 3500rpm it really changed character.

Also, when I bought it I paid £13500 for it, they said they couldn't sell it, at the same time MY12 E350d's were selling for £20k and more.
I sold it 2.5 years later for £12500, E350d's were selling with the same spec/age and mileage for under £10k.
Of course the hatred and fear towards petrols had changed somewhat with all the diesel hate by then, but still, nice for me.
I sold it as I thought I could either sell then and get nearly all my money back or I would probably just keep it forever.

I decided to go for one of the new super efficient 520d Tourings everyone was saying was wonderful MPG wise, BMWs new B47 4cyl diesel.
The refinement and power has really impressed me, however, although the OBC says 44/45mpg the reality is just under 40mpg.

Again it is just annoying me, if I am going to be in a diesel I want to see 50+ average to justify it, I have given it 6 months but it is going.
340i Touring or a late Discovery 4, a truck gets away with a diesel.

 

[gIzzE]

I should just add, on a fast run the E350 petrol would do 35mpg easily and would see nearly 40mpg with a bit of effort. This was so close to the diesel.

The OBC was also spot on too.

I have come to the conclusion it is down to how the start the figure, the petrol starts at 14mpg and slowly climbs up, it gets to temp in around 1 mile.
The diesel started at 40mpg and slowly went down to around 24 before slowly climbing back up as it got to temp, it used to take 10-15 miles to get to temp.
The problem with that is every sub 10 mile journey would screw the calculations up.

 

[MikeInWimbledon]

For what it's worth, my 2007 S211 E350 petrol has averaged 30mpg over the last 8,000 miles (sic).
All just South West London and home counties stuff. Nothing particularly long haul on this one.

I came to it from a 535d SE Touring, which I hated.

All that said, a V8 will be replacing it soon.... even if I have to lose three doors to do it.

.

 

[Deleted member 65149]

#C320, I’ve no doubt mentioned it earlier in this thread, but there’s a significant difference between the pre and post facelift C350 petrols that happened late 2011. The facelift cars have the M276 engine with direct injection that increases the power to 309bhp and reduces the CO2 to a lower VED band (currently £195). Fuel consumption as with any car is a factor of journeys and driver, but as an example last Sunday I did a round trip of 200 miles to Heathrow and back in my 2012 C350 petrol that included too many miles of stop-start traffic on the M25 car park and “enthusiastic” driving on A and B roads without passengers to make up for lost time and blow away some cobwebs; the OBD said 38mpg. I’ve yet to find a car that can replace it.

 

[ash1212002]

I have a c250 cgi facelift petrol saloon 204 bhp, did a round trip on the M6 to Preston and back, also roadworks of 50 mph totalling approx 25 miles in total or so one way, total miles driven 250 and the best i achieved was 41.7 mpg which didn't last long and eventually settled down to 40.6 mpg. Driving between 70 -75

I was looking for a c350 variant but very rare, come up once in a blue moon if you're lucky. One was advertised up in Scotland not sure if it eventually sold but the spec wasn't great

Mine has the sport button which i understand is an optional extra, heated seats, xenons, reverse camera, leather heated seats etc. C250 facelifts do not come up very often either

 

[gIzzE]

I’ve yet to find a car that can replace it.

There isn't really one to replace it. Not in the UK anyway.
The E300 with 258ps or the E450 with 367ps would be ideal, I don't necessarily want an E53 as the family car. Just a nice smooth petrol.

I like how in Germany you can still order them on 17" wheels and comfort suspension.

 

[Bluegnomes]

I did 377miles yesterday (mostly M-way) in the E43 at 34Mpg. Not too bad for a 400bhp petrol car. There are really very few petrol E class estate options and when I got the E43 it was the only option! It can do nice smooth petrol when you want if on 19inch wheels.

 

[Londonscottish]

I did 377miles yesterday (mostly M-way) in the E43 at 34Mpg. Not too bad for a 400bhp petrol car. There are really very few petrol E class estate options and when I got the E43 it was the only option! It can do nice smooth petrol when you want if on 19inch wheels.

That's really impressive for 400bhp.

I like the way Merc are going with their petrols - particularly the new I6. Wouldn't be surprised if that would do 40+ in similar conditions. Compared to the 30mpg max that I get in on a gentle run.

Still, as other have posted, it's not ALL about the economy. Like one of the other posters I'm half way through an 1,800-ish mile trip to the Loire.

I could enjoy (a LOT) around 6 tanks of V8 petrol-ness or enjoy (quite a lot less) 4 tanks of V6 diesel-ness. Every time I red line it and hear that snarl I decide it's well worth the "tax".

 

[clk208]

There isn't really one to replace it. Not in the UK anyway.
The E300 with 258ps or the E450 with 367ps would be ideal, I don't necessarily want an E53 as the family car. Just a nice smooth petrol.

I like how in Germany you can still order them on 17" wheels and comfort suspension.

I have the same difficulties thinking of a replacement for my CLS which I’ve had coming up to 8 years now. Despite now having a baby and the sloped rear making it difficult to get the little one in, a 4pot E estate doesn’t appeal at the moment when I currently have a silky smooth 292bhp 6 cyl petrol.

Maybe the facelift W213 next year when I think all the petrols will be mild hybrid and the performance should be closer to what I currently have, but I’d rather buy at 2-3 years old so could be a bit of a wait.

Maybe I should try the current e220d which by all accounts does an amazing performance vs economy job. E43 would be amazing but they are so pricey still and a bit too showy. A regular 6 cyl in basic SE trim would be my ideal. Oh and a bonnet star please.