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Wow new hybrid E class

hawk20

MB Enthusiast
Joined
Jul 15, 2006
Messages
4,344
Location
Lymington, Hampshire
Car
ML250 BlueTEC Sport Jan 2013
PRESS RELEASE

E 300 BlueTEC HYBRID
A new level of efficiency – the first diesel hybrid from Mercedes-Benz
• Efficient full hybrid allows purely electric driving
• Driving pleasure and efficiency thanks to 150 kW diesel engine combined with 15 kW electric motor
• Fuel consumption 4.1 litres per 100 kilometres, CO2 emissions 109 grams per kilometre
• Sophisticated operation strategy with start/stop and “sail” functions
With the E 300 BlueTEC HYBRID being presented at the Geneva Motor Show, Mercedes-Benz is offering a look ahead to Western Europe’s first diesel hybrid. It pairs a 2.2-litre four-cylinder diesel engine developing 150 kW (204 hp) with a powerful hybrid module. Its 15 kW electric motor, positioned between the internal combustion engine and the 7-speed automatic transmission, assists the diesel engine when the car is accelerating (boost effect) and is used for the recuperation of braking energy in alternator mode, although it is also suitable for driving using electric power alone. Based on the innovative modular system for hybrid vehicles developed by Mercedes-Benz, the diesel hybrid ushers in a new era of hybrid drives. The E 300 BlueTEC HYBRID consumes 4.1 litres of fuel per 100 kilometres (CO2 109 g/km). It will be launched at the end of 2011.
The technical basis for the E 300 BlueTEC HYBRID is the E 250 CDI with a four cylinder diesel engine developing 150 kW (204 hp). For the new hybrid model, the Mercedes-Benz engineers have used the fuel-efficient 4-cylinder diesel engine in combination with a compact electric motor developing 15 kW. The electric motor draws its energy from a high-voltage, lithium-ion battery, which has already proven itself in the S 400 Hybrid. Despite the high overall output of up to 165 kW (224 hp) and a torque of over 580 Nm, the E 300 BlueTEC HYBRID consumes no more than 4.1 litres of fuel per 100 km (NEDC), equivalent to CO2 emissions of 109 g/km. Fuel consumption is therefore on a par with extremely efficient small cars, while the hybrid drive system outperforms current six cylinder diesel engines in terms of output and driving enjoyment.
The exemplary fuel consumption figures are due in no small part to innovative hybrid components and a sophisticated operation strategy incorporating the following principal features:
• Even at low revs, the electric motor assists the diesel engine with high torque (boost effect). The result is excitingly high, clearly noticeable agility
• When driving for longer distances or on the motorway, the intelligent electronics recognise the driving situation and automatically adjust the load point of the internal combustion engine to achieve a lower specific fuel consumption, thereby helping to save fuel and reduce emissions
• Thanks to a clutch between the engine and the electric motor, the E 300 BlueTEC HYBRID can cover short distances at speeds of up to 35 km/h using electric drive alone. Consequently, the internal combustion engine does not even need to be started in most cases when driving in stop-and-go urban traffic or manoeuvring in parking spaces
• The internal combustion engine in the new diesel hybrid is switched off as soon as the vehicle starts to coast down from 80 km/h; in this case, the electric motor just keeps the road speed constant. Experts call this effective driving state “sailing”
• The diesel engine is started smoothly as soon as the driver releases the brake pedal, hits the accelerator pedal or reaches a defined limit speed during acceleration
• Recuperation starts as soon as the driver releases the accelerator pedal –
in this case, the electric motor functions as an alternator and converts the kinetic energy into electrical energy, which is stored in the high-voltage battery. Even when braking, part of the energy is converted into electrical energy
The E300 BlueTEC Hybrid offers all the driving characteristics of a full hybrid, such as purely electric driving, stop/start function, recuperation, boost effect and, for the first time, “sailing” and silent starting of the internal combustion engine by the high-voltage electric motor.
Even with hybrid technology on board, the E 300 BlueTEC still provides hallmark Mercedes-Benz comfort. The air conditioning compressor and the steering are powered electrically, meaning that both systems operate even when the internal combustion engine is not running. What’s more, none of these measures restrict boot space and variability in the slightest, as all of the hybrid technology, including the high-voltage battery, is housed in the engine compartment. This is made possible thanks to Mercedes-Benz’s sophisticated modularisation concept and the extremely compact components.
From 2011, the E 300 BlueTEC HYBRID Saloon and Estate will expand the range of exceptionally ecofriendly and economical Mercedes-Benz cars, which already features over 70 BlueEFFICIENCY models from the A-Class to the S-Class, including the S 400 HYBRID and the ML 450 HYBRID – the first two hybrid passenger cars to be produced by a European manufacturer.
Geneva 2010: Mercedes E300 BlueTEC Hybrid to be Europe’s First Diesel Hybrid : Auto News
 
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Talking 60 plus per gallon and emissions less than any current A class!
Incredible.

But will we hear as so often that the design department have forgotten to make it work in RHD. Hope not.
 
Talking 60 plus per gallon and emissions less than any current A class!
Incredible.

Sounds way more attractive than a Prius - the engineers have worked out how to make a real car without re-engineering it from scratch with a new drivetrain. They've (hopefully) figured the right compromise on battery technology and drivetrain.

Proper car with proper accommodation and a proper boot and proper performance and I would guess proper handling too.

But how much is this going to cost? And who's going to go through the early adopter pain to prove it for the rest of us followers?
 
This sounds good. What's the performance going to be like compared to my current I6 E320 CDi? Will the electric motor be good for the mega mileage I'll be doing?
 
Ahh so thats why the mercedes technician's arent that fussed about existing customers with problems, they are all busy producing the next big koolaid!
Sorry, but I just had too, what with the diesel injector issues and now my 350 has a delayed throttle issue when I set off (the service manager saw it last saturday (again) and was going to call me last monday, still waiting......).

Seriously this car sounds great, if they get it right but I certainly wont be jumping in to buy one when theyre released. maybe wait 3 to 5 years to they iron out the bugs that they reaslised wouldnt work in real world driving.
 
Yes I think the problems with the new 4 pot diesels have made quite a few of us revisit that old adage about waiting a couple of yeasr before buying a new model.
Can't all do that though!
 
Seriously this car sounds great, if they get it right but I certainly wont be jumping in to buy one when theyre released. maybe wait 3 to 5 years to they iron out the bugs that they reaslised wouldnt work in real world driving.

That applies to just about any new car. More new advances you think they've put in then the longer you leave it.

My father lectured me when I was little about buying new models in the first year or two. The advice still stands decades on.

But it's hard when a friend comes round gushing about having put in an order for a car that is being launched and you really want to advise them to hold off for a year. It's worse when they tell you there's so much pent up demand they didn't get a discount and they're having to wait two months. How can you bring yourself to rain on the enthusiastic parade.
 
Yes I think the problems with the new 4 pot diesels have made quite a few of us revisit that old adage about waiting a couple of yeasr before buying a new model.
Can't all do that though!

I know but with a hybrid car (a lot of mechanical tech in there) I would want to leave it.

Couple of big imponderable questions

1) the hybrid battery-how long will that last, how easy is it to swap and the cost of this
2) the life span of the electric motor-how easy is that to change/repair and costs
3) the extra wear on the gearbox, a 250cdi + electric motor-its a lot of torque.
4) The claimed MPG and time the electric system works alone

Early adopters will likely be fleet users, the tax advantages for the size of car are massive. It will sell. I would rather have a big V6 diesel in a car like that, but with a diesel the hybrid argument now makes a lot of sense.
 
This sounds a really good car for people how do a decent amount of mixed urban and extra-urban work.
I doubt very much that it would be a great help to the 95% extra-urban journeys that I do, my brakes already last for ever!
Journalists and people who should understand physics better are still 'surprised' that their hybrid Lexus is only getting 30mpg when it says 40 on the packet, and Prius owners get worse consumption than diesels out of town.
However, this car does take the best of both diesel economy and regenerative energy, we just hope they have sorted the braking software better than Toyota.:dk:
 
maybe I'm being a cynic, but they've not stated over what cycle the car will achieve 4.1 l/100km.

Experts call this effective driving state “sailing”

Marketing experts more like ;)

Cheap snipping aside, it looks like it'll be an interesting car development to follow.
 
maybe I'm being a cynic, but they've not stated over what cycle the car will achieve 4.1 l/100km..

being a cynic = being realistic

My take is that this is just improving the E250 another stage with a half way house between a real hybrid and stop/start system. I think this also overlaps with the BMW setup. Trying to use the energy recovered to drive the electric ancilliary systems.

And that makes sense. Minimise the impact of the battery and electric motor/generator - getting the most out of minimal amount of extra weight/complexity.
 
Electric car motors normally need some maintenance every 100k miles or something, even then it's basically just an inspection; There's not much to go wrong TBH. Wiring on the other hand...
 
This looks a sensible step to me - Mercedes are dipping their toes into hybrid making without making something revolutionary, and having gained the experience, might then go much further. Just as long as the motor isn't made by Delphi....
 
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looks like the 4 cyclinder diesels will eventually get the 7G tronic gearbox .. the E300 BlueTec gets it
 
I'm not sure how they measure MPG with a hybrid. Starting with the battery fully charged, a hybrid could potentially do the urban cycle on electric power alone = infinite MPG. That would be false, because that power would have to be replenished by the engine (consuming fuel to do so) afterwards. I.e. the fuel consumption is 'delayed'.

As the only real advantage of a hybrid is recovering and re-using braking energy, IMO they should start the cycle with the battery fully discharged.
 

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