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BMW introducing a 7 Series diesel model in US

24 January 2014

P90093583
BMW 7 Series Long Wheel Base. Click to enlarge.

BMW will introduce the diesel-engined BMW 740Ld xDrive Sedan in the US. The new model will feature BMW’s 3.0-liter TwinPower Turbo diesel engine in the long-wheelbase 7 Series body and will include xDrive, BMW’s intelligent all-wheel drive system. The 2014 BMW 740Ld xDrive Sedan will have a Manufacturer’s Suggested Retail Price of $83,425, including $925 destination and handling. It will make its US auto show debut at the Chicago Auto Show in February 2014 and arrive in US showrooms in Spring 2014.

The 3.0-liter inline-6 BMW Advanced Diesel engine with BMW TwinPower Turbo technology makes 255 hp (190 kW) at 4,000 rpm and 413 lb-ft (560 N·m) of torque from 1,500 – 3,000 rpm. It is mated to an 8-speed automatic transmission. The BMW 740Ld xDrive will accelerate from 0-60 mph in 6.1 seconds.

US EPA fuel economy estimates are not yet available, however, other models equipped with this engine have seen a 25 – 30% improvement in fuel efficiency over their direct gasoline-powered counterparts. Standard features like Driving Dynamics Control with Eco Pro mode and Auto Start/Stop will help the driver to reduce fuel consumption in real-world driving situations.

With a weight-saving aluminum block and head designs, the 3.0-liter inline-6 BMW Advanced Diesel engine features a single turbocharger with variable vane turbine technology. This design helps improve low-end torque while facilitating precise control of the boost pressure and eliminates the need for a wastegate.

The engine uses the latest generation of electronically controlled high-precision diesel injection system. The system plays a significant role in the reduction of fuel consumption as well as exhaust emissions. The normal operating pressures reach as high as 1800 bar (26,107 psi) and the fuel injectors can deliver multiple injections over extremely short durations of time, helping to reduce exhaust emissions.

The exhaust gas treatment system is specifically designed to comply with ULEV II emission standards. It uses a combination of a NOx Storage Catalyst, Diesel Particulate Filter, and the Selective Catalytic Reduction (SCR) system with no fewer than nine specific sensors working in concert to keep exhaust emissions to an absolute minimum.

The all-aluminum crankcase and hollow camshafts not only save weight, they also contribute to noise and vibration reduction. Additionally, the timing chain is placed at the flywheel end and not toward the front of the engine which further reduces rotational vibrations.

The 740Ld xDrive Sedan joins a growing list of BMW Advanced Diesel models offered in the US which now includes: 328d and 328d xDrive Sedans; 328d xDrive Sports Wagon; 535d and 535d xDrive Sedans; and the X5 xDrive35d Sports Activity Vehicle.

January 24, 2014 in Diesel, Engines, Fuel Efficiency | Permalink | Comments (7) | TrackBack (0)

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Comments

For comparison Tesla Model X cost the same is bigger and accelerates faster from 0 to 60 mph in less than 5 sec.

A few years ago I had a feeling that pure BEVs would only be able to compete with combustion cars in the performance car segment doing 0 to 60 mph in maximum 6 seconds. Now I am certain. You cannot make a combustion car that can compete with the specs of Teslas' vehicles and still be priced less than Teslas cars. Tesla will gobble up that market globally unless they get some competition from other auto makers that essentially copy Tesla's BEV design approach.

The reason that Tesla is so competitive in this segment is that their 300 to 400hp engine and simple transmission only cost a fraction of a similar powered combustion engine with its associated complex transmission. This is enough to make up for the costly battery pack in Teslas' cars.

The combustion based market for performance cars will not be entirely eliminated as there are still many customers preferring to be able to fuel in less than 5 minutes. However, I expect many more will gladly trade off this 5 minutes ability with the benefit of being able to fuel at home and for free for life at all long-distance journeys.

@Henrik
Well Henrik, you could have updated your information a little bit before you posted these comments. BMW offers a couple of engines that are more powerful than this one. This particular engine is “small”, i.e. only 3 liter. If we limit ourselves to the diesel versions of the 7 series, BMW also has a more powerful 3-liter diesel engine, 750d xDrive, which produces close to 400 hp. One could mention that it is faster and uses less fuel than the BMW Active-Hybrid 7. The 750d does 0 to 60 mph in less than 5 seconds. Many customers will gladly choose this car over a Tesla. Perhaps BMW will later decide to offer this model also in the USA. In addition, BMW cars, in general, provide the qualities of a premium car, which Tesla does not. What will the resale value of a Tesla be after a couple of years when the batteries are worn out? When this happens, you can still continue to drive your BMW.

Nevertheless, I prefer to promote cars that use <50% of the fuel - or electricity - that the mentioned cars do use. As much as 400 hp and acceleration from 0 to 60 mph in less than 5 seconds is simply insane. Moreover, if you prefer an electric car, a less powerful car requires smaller batteries and less rare elements in general. Since these rare elements, per definition, are scarce on the planet, using less per vehicle would enable replacing more fossil fuel. Likewise, a conventional car that uses less fuel also makes more sense, since also fossil fuels are limited (although people in the USA do not seem to understand that… yet).

Peter

Tesla uses induction motors. All magnetic fields are electrically induced so no need for permanent magnets with rare earth components. Their motor is made of iron and cobber. Also the lithium battery is to the best of my knowledge also completely free of rare earth elements. This is very unlike Toyotas hybrids that use lots of rare earth material in both their batteries and electric motors.

Don't get me wrong I like BMW and their build quality. The 80,000 USD BMWs have in my opinion better interior build quality especially at the back seat than Tesla's Model S. However, I am sure the Model X will have rectified that in coming editions of the Model S and in Model X. In particular, the Model X will be a four wheel drive with the lowest point of gravity by any car ever made and it will contain two 300 hp engines or two of the standard Model S engine. I don't know any mass produced car with 600 hp. We might call it insane but it is definitely not boring to fly such a rocket.

The Tesla still got a toxic 12V lead acid battery and it uses toxic and combustible cooling liquids in its AC system. Hopefully, Tesla will find a way to rectify these problems or at least include an option in their configurator to pick non-toxic alternatives. Not that I think most people will buy the Teslas for their environmental benefits. First and foremost people will look for a good price given its extremely good handling, safety and acceleration. They also look for size and usability and this is why I believe the Model X will do very well because it is bigger and more comfortable especially at the back seat.

Do manufacturers still have much difficulty with getting Diesel engines certified for emission regulations in the US? Is there still the 45 state or 50 state Diesel issue? I remember this being an issue several years ago but haven't heard about it in a while.

Michael,

Yes, US EPA diesel emissions regulations are stricter in the US than in Europe.

Peter XX,

Large BMWs suffer from epic depreciation, so there's no reason to believe that Tesla can do much worse. A top-line 7 series will usually wholesale at 1/10th of its original price after 5 years. That's why those cars are overwhelmingly leases and company cars rather than private purchases.

Bernard,
Yes, diesels can meet US emission norms. I have already discussed this numerous times on this site, so you can just read my previous comments a little bit more thoroughly. The limits for some emission components (not all!) are stricter in the USA but the test cycle is more “lenient” in the USA, so a car certified for Euro 6 can also be certified for US EPA. Basically, the car manufacturer only has to take on the extra work of certifying a car for both emission norms. This can only be motivated for cars that sell in large numbers, so it is somewhat surprising that BMW does this on such an expensive car as the 7 series and on a market where consumers do not particularly appreciate diesel cars (or have not yet learned to do so…). You should also note the US EPA still has no limit for particle number (PN), i.e. the tiny particles that are most harmful to your health. Regarding this parameter, the relative difference between EU and USA is infinite. In this context it could be noted that the exhaust from a diesel car can have lower PN/PM concentrations than ambient air; a “cleaning effect” not achievable with electric cars.

Epic depreciation is exactly what the Tesla owner will experience when the batteries die! Tax regulations for company cars effectively prevent the market for expensive company cars and expensive leasing cars in Sweden. Almost 100 % of all expensive cars are privately owned. Perhaps you should introduce such regulations as well in the USA. It would perhaps motivate you (or your company) to buy smaller cars. I do not know the situation with Tesla cars (since they do not sell well here…) but less expensive electric cars live on subsidies and most of them are company cars (where the driver does not have to bother about the purchase cost).

Peter,

We've already gone over this. You say that meeting EPA diesel regs is a matter of filling-in a form and paying a fee. Every manufacturer that has actually done this claims that it's a huge undertaking, and their US-spec diesel cars have different emissions sub-systems.
I think I will side with the simplest possible explanation for this discrepancy: manufacturers are better informed.

The reason why German manufacturers bother to sell diesels in the US is that it has a positive effect on their CAFE ratings. In other words, every diesel sold means that they can bring-in one more V8 SUV or supercharged status sedan. Consider that an M-spec or AMG-spec car sells for twice the price of a base diesel car, profit margins must be very healthy.

With all due respect, Sweden is a minor market for luxury cars such as the 7 Series.

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