BMW Heaven - The Knowledge Base 2.0

  • Increase font size
  • Default font size
  • Decrease font size

5 Series Touring - F11 (2010 - ...) - BMW EfficientDynamics in the New BMW 5 Series Touring: Consistently Strengthening its Leading Position

User Rating: / 285
PoorBest 
Article Index
5 Series Touring - F11 (2010 - ...)
Brief
Design
Interior
Driving Experience
BMW EfficientDynamics
BMW ConnectedDrive
Equipment
Body and Safety
Model history
Production
Specifications
All Pages

 

BMW EfficientDynamics in the New BMW 5 Series Touring: Consistently Strengthening its Leading Position

  • Supreme all-round economy featured as standard the world over.
  • BMW 530d Touring with BMW BluePerformance fulfilling the EU6 emission standard.
  • BMW 520d Touring with Auto Start Stop fitted as standard offering the lowest fuel consumption and CO2 levels in its segment.

The new BMW 5 Series is the epitome of driving pleasure in the upper midrange market. Intelligent functionality adds further facets to the highly attractive touring model. The many qualities of the new touring reflect the broad range of competence offered by the world’s leading manufacturer of premium cars. The essential features thus also include an unparalleled balance of fuel economy and driving pleasure resulting from the BMW EfficientDynamics development strategy featured in the new BMW 5 Series Touring worldwide as standard and in a particularly wide range of equipment and technologies. Outstanding economy and exemplary emission management are therefore further good reasons to enjoy supreme driving pleasure in the BMW 5 Series.

All drive units available for the new BMW 5 Series Touring were created as part of the BMW EfficientDynamics development strategy. Apart from the petrol and diesel engines optimised for minimum consumption, various transmissions offering a particularly high standard of efficiency, lightweight construction on a broad scale, refined aerodynamics in every detail and numerous other efficiency features ensure that every version of the new BMW 5 Series offers exceptionally low fuel consumption and emissions in its respective performance class. As a result, the new BMW 520d Touring continues to strengthen its leading position as the most fuel-efficient car in its segment. In combination with automatic transmission, the BMW 530d Touring is even available as an option with BluePerformance technology. As a result, it already fulfils the EU6 emission standard today not coming into force until the year 2014. Thus, the BMW brand is consistently strengthening its leading position in the reduction of emissions for compliance with the EU6 standard.

The petrol engines in the new BMW 5 Series Touring: a perfect combination of innovations for supreme efficiency.
Offering the spontaneity, fast-revving performance and refinement so typical of the brand, combined with unparalleled efficiency, the petrol engines featured in the new BMW 5 Series Touring come with a standard quite unparalleled in the market. Both straight-six engines available for the BMW 5 Series Touring at market launch come with outstanding technical innovations created in the context of BMW EfficientDynamics. And the specific combination of technologies gives each of the two drive units its own quite unique characteristics.

The most important feature shared by the two petrol engines is fuel supply by means of second-generation direct fuel injection. Already well-known as High Precision Injection, this advanced system uses injectors positioned in the middle between the valves and in the immediate vicinity of the spark plug for the precise dosage of fuel, measurably reducing fuel consumption also in everyday traffic. A particularly efficient version of High Precision Injection is to be admired in the six-cylinder engine driving the new BMW 523i Touring. Direct injection in the lean-burn mode gives this model particularly good fuel economy. Referred to as stratified charging, this process forms various interacting layers of different fuel/air mixtures within the combustion chamber, the share of petrol in the mixture decreasing continuously with an increasing distance from the spark plug. A particularly rich and therefore ignitable fuel/air mixture is therefore available only in the direct vicinity of the spark plug. As soon as this mixture is ignited, the leaner layers at a greater distance from the spark plug will also burn in a clean and consistent process.

In the straight-six engine featured in the new BMW 535i Touring High Precision Injection is combined with turbocharging. BMW TwinPower Turbo Technology provides power and performance characteristics a naturally-aspirated engine would only be able to offer on much larger capacity, making it heavier and obviously consuming more fuel and generating more emissions. In addition, the six-cylinder in the BMW 535i Touring combines BMW TwinPower Turbo and High Precision Injection with fully variable VALVETRONIC valve control. The result is infinite adjustment of valve stroke and valve timing on the intake side, reducing throttle losses in the charge cycle to a minimum and making particularly efficient use of the energy in the fuel. A further advantage is the response of the engine optimised to an even higher standard. Developing 225 kW/306 bhp, the power unit featured in the new BMW 535i Touring accelerates this outstanding sedan to 100 km/h in 6.0 seconds, combined with average fuel consumption in the EU test cycle quite unique in this class of just 8.6 litres/100 kilometres, equal to 32.8 mpg.

The permanent, ongoing development of drive units in the context of BMW EfficientDynamics also means the optimisation of weight. Hence, the drive unit in the new BMW 535i Touring is largely made of aluminium, while the straight-six engine in the BMW 523i Touring comes with a composite magnesium/aluminium crankcase again some 24 percent lighter than a comparable aluminium block.

Such optimisation of weight benefits not only the efficiency, but also the agility of the respective vehicle. All versions of the new BMW 5 Series Touring come with almost perfect 50:50 weight distribution front-to-rear. In combination with rear-wheel drive, such harmonious axle load distribution is indeed crucial to the dynamic and, at the same time, superior driving behaviour of the new BMW 5 Series Touring.

5_f11_top_view

Full of torque, light, efficient: the latest generation of diesel engines.
The diesel versions of the new BMW 5 Series Touring also offer state-of-the-art drivetrain technology. All-aluminium construction, Common Rail direct fuel injection of the latest generation and turbocharging give both the four- and six-cylinder diesels truly impressive torque and pulling force, supreme smoothness and unparalleled efficiency.

The BMW 530d Touring comes with a representative of a new generation of straight-six diesels – outstanding power units featuring a wide range of innovations for unusually efficient and clean combustion. Further weight reduction compared with the former engine also serves to improve the efficiency and agility of the BMW 530d Touring. The engine displaces 3.0 litres and comes with an optimised turbocharger system with variable intake geometry providing superior power and torque from an early point.
Fuel supply through Common Rail direct injection of the latest generation is provided by piezo injectors operating at a pressure of up to 1,800 bar. Compared with the respective predecessor, the new BMW 530d Touring offers an increase in engine output by 7 kW, with average fuel consumption in the EU test cycle down by up to 4 percent.

As an option the new BMW 530d Touring with automatic transmission may be further upgraded with BMW BluePerformance Technology. Offering this unique system, BMW is once again increasing its lead in the introduction of exhaust gas management, substantially reducing nitric oxide emissions (NOX) to an even lower level. On the new BMW 530d Touring with BMW BluePerformance, the diesel particulates filter and the oxidation catalyst likewise featured as standard are supplemented by an NOX storage catalyst operating without the slightest maintenance throughout the entire lifecycle of the car and not requiring any additional operating media. As a result, exhaust management of this standard already reduces nitric oxides to the level not required by law until the introduction of EU6 in 2014.

Consistent enhancement of its four-cylinder diesel also gives the new BMW 520d Touring yet a further improved balance of performance and fuel economy. Maximum output of this 2.0-litre aluminium engine is up by 5 to 135 kW/181 bhp, peak torque is up by 30 to 380 Newton metres/280 lb-ft.
At the same time, the new BMW 520d Touring offers average fuel consumption of 5.2 litres/100 kilometres (equal to 54.3 mpg imp) in the EU test cycle and a CO2 rating of 137 grams per kilometre, thus enhancing its leadership as the most fuel-efficient and lowest-emission car in its segment.

Making its debut in the BMW 5 Series: Auto Start Stop function.
The new BMW 520d comes as standard with an Auto Start Stop function reducing the engine idle period when coming to a short stop at road junctions or in traffic congestion: As soon as the driver moves the gearshift lever to neutral and takes his foot off the clutch pedal, the engine is switched off automatically. Then, once the driver is able to go on, all he has to do is press the clutch to start the engine without the slightest delay.

All manual gearbox versions of the new BMW 5 Series Touring furthermore come as standard with a gearshift point indicator. An arrow symbol flashing on in the instrument cluster and specifying the optimum gear shows the driver the ideal point to shift gears. Then, depending on driving conditions, the electronic engine control unit calculates the optimum point for shifting gears in the interest of maximum fuel economy.

Brake Energy Regeneration including a recuperation display.
Likewise featured as standard, Brake Energy Regeneration, ensuring intelligent management of energy flow in the car, concentrates the generation of electric power for the on-board network on overrun and the application of the brakes. This takes the usual load off the engine and ensures highly efficient generation of electric energy largely without any additional consumption of fuel. As long as the engine is pulling the car, on the other hand, the generator is generally disconnected in order to provide more power for that Sheer Driving Pleasure so typical of BMW.

In the new BMW 5 Series Touring the instrument cluster is supplemented by a recuperation display. This graphic display next to the current consumption indicator at the bottom of the rev counter provides information on the generation of electric power in overrun and while applying the brakes, the blue arrow being activated as long as Brake Energy Regeneration feeds energy generated without the consumption of fuel into the on-board network.

Electric Power Steering and on-demand management of ancillary units for reduced consumption of energy.
On-demand management of ancillary units and Electric Power Steering serve to further refine energy management in the car. The coolant pump masterminded as a function of current demand, for example, consumes far less energy than a conventional system permanently running under full capacity. The pressure-controlled fuel pump, the use of on-demand pump technology on the suspension control system and the map-controlled oil pump on the BMW 523i and BMW 535i, in turn, also help to maximise the use and consumption of energy.

Introduction of a new steering system for the BMW 5 Series likewise helps to boost efficiency. The servo motor on EPS Electric Power Steering is activated only when power assistance is really required or is desired by the driver. These technologies reduce the demand for electric energy, with the amount of primary energy converted into electricity by the generator dropping substantially in the process. And with the loss of power on a conventional a/c compressor also being reduced significantly by intelligent control, the compressor on the new BMW 5 Series Touring is separated by a magnetic clutch from the drive belt as soon as the air conditioning is deactivated.

Reduction of friction losses is an overriding objective pursued consistently on all engine units and ancillaries. Use of a special light transmission fluid in conjunction with a reduced amount of fluid in the final drive reduces both friction and oil splash losses immediately after setting off. Like the new BMW 7 Series, the new BMW 5 Series Touring also comes with its final drive in aluminium, warming up more quickly and reducing thermal loads at high speeds.

The reduction of air resistance also serves to cut back fuel consumption.
As a result, all versions of the new BMW 5 Series Touring come with active cooling air flaps opening or closing specifically according to current driving conditions. This further improves the aerodynamic qualities of the car whenever the demand for cooling air remains at a low level, just as the extra-smooth underfloor promotes the flow of air beneath the vehicle.

Efficient power transmission: manual gearbox with dry sump lubrication and eight-speed automatic transmission.
The new BMW 5 Series features a new generation of six-speed manual gearboxes and, as an option, an eight-speed automatic transmission.
All transmissions stand out through an even higher degree of efficiency, compact dimensions and low weight. The new manual gearbox on the BMW 535i Touring and the BMW 520d Touring comes with dry sump lubrication and a modified gearset concept for even greater gearshift comfort and even lower drag losses within the gearset. Fully controlled oil supply serves furthermore to avoid oil splash losses otherwise suffered in the process of distributing large amounts of oil.

The eight-speed automatic transmission also complies in full with the principles of BMW EfficientDynamics, likewise featuring innovative gearset configuration with additional gears and a larger spread of increments versus the former six-speed automatic transmission without any negative effects in terms of size, weight and the inner efficiency of the system. Shifting gears very quickly and providing direct access to the target gear lane when shifting back for maximum acceleration, the eight-speed automatic transmission gives the new touring even greater driving dynamics and performance.
At the same time converter slip restricted to the setting-off process and reduced to a minimum even under such conditions, the high degree of inner efficiency, low frictional losses with only two clutches open at a time, longer transmission ratios in higher gears and transmission management for driving smoothly at low engine speeds, all act together to considerably reduce fuel consumption versus the former six-speed automatic transmission. Even this is not all: In combination with the eight-speed automatic transmission, the six-cylinder models offer even lower consumption figures and CO2 ratings than their counterparts with manual gearbox. As an example, average fuel consumption of the new BMW 530d Touring with manual gearbox in the EU test cycle is 6.4 litres/100 km or 44.1 mpg imp, average fuel consumption of the same model with eight-speed automatic transmission is 6.3 litres/100km or 45.8 mpg imp.

Intelligent lightweight construction offering even greater fuel economy.
Appropriate choice of the right materials helps to optimise weight also on the new BMW 5 Series Touring, enhancing both the agility of the car as well as its fuel economy and emission rating. This optimisation of weight combines with a further increase in passive safety and is ensured in particular through the appropriate use of high-strength multi-phase steel, ultra-high-strength hot-moulded steel and aluminium.

The large share of high-strength and ultra-high-strength steel gives the safety passenger cell of the new BMW 5 Series Touring maximum stiffness and stability without the additional use of material. With optimised weight, the positive properties of the steel used allow an increase in mean body strength and stiffness by 30 percent over the former model. The standard of lightweight construction quality defining the torsional stiffness of the vehicle as a function of its footprint and weight has also been significantly improved. Spring supports made of pressure-cast aluminium enhance the driving dynamics of the new BMW 5 Series in two respects, making the entire front section even stiffer and, through their low weight, further improving the overall balance of the car.

For the first time the doors of the BMW 5 Series Touring are made of aluminium, reducing weight by approximately 23 kg or 50 lb versus a conventional structure. The front side panels, the engine compartment lid and a large number of the front and rear axle components are also made of this particularly light metal.



Last Updated on Saturday, 01 May 2010 17:55  

Latest specifications

2008 Alpina D3 Biturbo LCI Sedan (E90)

2008 Alpina D3 Biturbo  LCI Sedan (E90)
View full specifications

2010 BMW 135i (E82)

2010 BMW 135i    (E82)
View full specifications

2011 BMW 640d A Coupe (F13)

2011 BMW 640d A  Coupe (F13)
View full specifications

2010 BMW 1 Series M Coupe (E88)

2010 BMW 1 Series M   Coupe (E88)
View full specifications

1994 BMW 740i A Sedan (E38)

1994 BMW 740i A  Sedan (E38)
View full specifications


Latest pictures