E400/350D Touring - running costs

E400/350D Touring - running costs

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Discussion

Spudmaster

Original Poster:

342 posts

210 months

Wednesday 23rd September 2020
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Hi all,

Doing around 25k miles per annum and seriously considering a six-cylinder diesel whilst they are still allowed.
Looking c. 12 month old, bulk of depreciation already passed.
Main question is - what should my realistic expectation be around mpg and other running costs? My driving is c. 40% back roads, 60% A & M roads.
Coming out of a Volvo V90 D5 which has really disappointed at 35mpg - but to be fair it is a 4 cylinder twin-turbo in a heavy old bus..

Also, if I go 350d, should I opt for older (& therefore cheaper) V6 3.0, or the newer 2.9 straight six?

Any pointers much appreciated!
Spud

_Mja_

2,264 posts

180 months

Wednesday 23rd September 2020
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I haven't experienced those cars but have found the 2.0 TDI engines in big estates are not as efficient as the 3.0 TDI 6 cylinder lumps. On paper they are said to be but I guess the smaller engine has to work harder to give the sort of daily accerleration people want.

I would have thought you'd see more than 35mpg out of it. I get 45mpg average out of my current vag 2.0tdi when driving normally, 37mpg if driving normal with a bit of welly thrown in at times.

Scrump

22,742 posts

163 months

Wednesday 23rd September 2020
quotequote all
I have a 2014 E350d estate with the 7g+ gearbox, later cars got a 9speed which is supposed to give better mpg on the motorway.

I get about 45mpg on the motorway. 30 to 35 mpg around the city (stop,start driving) and average somewhere approaching 40mpg depending on my mix of motorway vs city driving.
Great engine and great car, I really like mine.

donkmeister

8,901 posts

105 months

Thursday 24th September 2020
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Spudmaster said:
Hi all,

Doing around 25k miles per annum and seriously considering a six-cylinder diesel whilst they are still allowed.
If 10 years old and LHD are acceptable to you, there used to be a Europe-only V8 diesel E420... Just putting it out there biggrin

quinny100

954 posts

191 months

Thursday 24th September 2020
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I have a 2017 E220d Estate. I wanted an E350d when I bought it last year, but having driven both I wasn't as blown away by the V6 as I thought I would be and it came down to a choice between a basic E350d and an E220d Premium Plus with Driving Assistance Package and other options and I went for the latter.

The 350d V6 is quite an old engine, the straight 6 400d and later 350d were brand new on release, as was the 220d at the W213 launch. The new engines have all been designed from the ground up to have all the emissions reduction stuff like DPF's and SCR fitted, so this should prove less problematic than the older cars where these items were effectively a bolt on fix. The V6 is heavy - an E350d is about 135Kg heavier than an E220d, nearly all of that is directly over the front wheels which affects the handling.

Personally I would go for one of the straight 6 engines or save some cash and get a 220d.

Discussions around MPG are a bit of a moot point because depreciation on a 12 month old E-Class will kick you in the balls much harder than the cost of the fuel. My average over 15K is 48.7MPG but I get mid-50's on a long run, a V6 I'd work on high 30's, straight 6 40MPG and I don't think you'll be far off.

I'd recommend a Premium Plus car for the intelligent LED lights - Merc standard LED's are a bit disappointing - and the Burmester stereo, you also get the Premium stuff like memory seats and pano roof. I also cannot recommend the Driving Assistance Plus pack highly enough - and if you've been using Pilot Assist on the Volvo you'll really want it, unfortunately it's rare option on used cars despite the cost being fairly reasonable new. 360 camera is also well worth having as it makes maneuvering in tight spaces easy - guidelines show you the front end swing as well as the rear so it's really useful on such a big car.

The service plan is worth getting if you want to service it at the dealer, and there's currently a 20% off deal on so it'll be about £30 a month. You can extend the warranty for £48.50/month once the manufacturers warranty expires, it's cheaper if you buy 2 years upfront but the monthly price doesn't increase over time and you can cancel it at 30 days notice.

Spudmaster

Original Poster:

342 posts

210 months

Thursday 24th September 2020
quotequote all
Thanks all - really useful stuff!
Found myself looking at Jag XF 3.0d at lunchtime today - seemingly more car for the money; though thinking there might be a reason for that.....🤨
Either way decision time soon - need to p*ss or get off the pot either way!

Monkeylegend

27,029 posts

236 months

Thursday 24th September 2020
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You might want to do a bit of research re oil dilution with the Jag engine if you haven't already done so before you buy.