OverviewThe new Mercedes-Benz GLE: The main points at a glanceShort version: The new Mercedes-Benz GLE: The SUV trendsetter completely reconceivedThe new Mercedes-Benz GLE under the microscope: E-ACTIVE BODY CONTROL suspension systemPowertrain: The six-cylinder diesel already meets Euro 6d and the RDE 2 emissions standardMBUX Mercedes-Benz User Experience: A new control experienceInterior Assist: An even greater experienceVariable interior: Comfort in up to seven seatsThe exterior design: Powerful presenceAerodynamics and aeroacoustics: Shaped by the windDriving assistance systems: Superior support in tailbacksENERGIZING COMFORT: Active comfort, now with instructions4MATIC all-wheel drive: Agile on the road, superior when off-roadOrgano panel front-end member: Plastic body panelsThe next-generation head-up display: Larger, sharper, brighterMAGIC VISION CONTROL and panoramic sliding sunroof: A brighter view: a clear view to the front – and of the starsThe new GLE in trailer operation: A real workhorseNoise, Vibration, Harshness: Untrammelled calmPassive safety: All-round protection when the worst happensInterior design: Luxuriously elegant and powerfully progressiveClimate control: Mastering the atmosphereSound systems: Let the music playHeadlamps: Very bright indeed – LED as standard, MULTIBEAM LED as an optionSuspension and brakes: Surefooted both on and off the roadBodyshell and lightweight design: The battle for the ideal weightNew operating and warning sounds: Precise feedbackProduction: Made in TuscaloosaThe heritage: Success storyTechnical data

Powertrain: The six-cylinder diesel already meets Euro 6d and the RDE 2 emissions standard

Nov 21, 2018
Stuttgart/San Antonio

Four powerful engines from the off: The new Mercedes-Benz GLE initially comes with a choice of three diesel engines - the six-cylinder GLE 400 d 4MATIC (combined fuel consumption: 7.5-7.0 l/100 km; combined CO2 emissions: 199-184 g/km),[1] the GLE 350 d 4MATIC (combined fuel consumption: 7.5-6.9 l/100 km; combined CO2 emissions: 198-184 g/km)1 and the four-cylinder GLE 300 d 4MATIC (combined fuel consumption: 6.4-6.1 l/100 km; combined CO2 emissions: 169-161 g/km)[2]. The line-up also includes the new six-cylinder petrol engine in the GLE 450 4MATIC with EQ Boost (combined fuel consumption: 9.4–8 .3 l/100 km; combined CO2 emissions: 214–190 g/km)2. Other engines, among them a plug-in hybrid, will follow.

For the first time the OM 654 and OM 656 four- and six-cylinder diesel engines in the new GLE make use of an additional SCR catalytic converter including ammonia slip catalyst in the underbody. Thanks to this enhanced exhaust gas aftertreatment, the GLE 400 d 4MATIC and GLE 350 d 4MATIC with six-cylinder diesel engine already meet the Euro 6d (RDE (Real Driving Emissions) level 2) standard which will not become mandatory until 2020. RDE measurements conducted by independent testing institutes confirm that nitrogen oxide emissions fall to around 20 milligrams per kilometre as a result of application of this advanced technology on the GLE 400 d 4MATIC, and even drop to substantially lower levels on individual journeys.

The new in-line six-cylinder diesel engine is initially available in the GLE 350 d 4MATIC and the GLE 400 d 4MATIC. With a rating of 243 kW (330 hp) and 700 Nm, the GLE 400 d is the most powerful series-production diesel SUV ever offered by Mercedes-Benz. Most of the components relevant for efficient emissions reduction are installed directly on the engine. The integrated technology approach combining the new stepped-bowl combustion process, dynamic multi-way exhaust gas recirculation and near-engine exhaust gas aftertreatment, combined for the first time with variable valve-lift control, makes further reduced consumption with low emissions possible. Thanks to the near-engine insulated configuration, exhaust-gas aftertreatment does not suffer great levels of heat loss and generates extremely favourable operating conditions. The measures taken include

  • high- and low-pressure exhaust gas recirculation including cooling,
  • a diesel oxidation catalytic converter (DOC) to avoid the emission of carbon monoxide (CO) and unburned hydrocarbon (HC),
  • a particulate filter with SCR catalytic function (sDPF),
  • an SCR catalytic converter (selective catalytic reduction) for reducing nitrogen oxides. For this purpose, ammonia in the form of the carrier AdBlue® is added to the exhaust gases before entering the sDPF,
  • an additional selective catalytic reduction (SCR) converter with an ammonia slip catalyst (ASC) in the exhaust tract.

The special features of the top-of-the-line engine in the premium diesel family include the stepped-bowl combustion process, two-stage turbocharging and, for the first time, the use of CAMTRONIC variable valve-lift control. Its design is characterised by the combination of an aluminium engine block and steel pistons, as well as the further improved NANOSLIDE® coating of the cylinder walls.

In the diesel models the AdBlue® reservoir is generously sized at 31 litres, as in the preceding generations. As before, refilling is convenient via a separate pipe behind the fuel filler flap.

GLE 300 d 4MATIC remains below all emission limits

The GLE 300 d 4MATIC with 180 kW (245 hp) and 500 Nm is available as a four-cylinder diesel from the current engine family. Thanks to further expanded emission control technologies, the powerful four-cylinder from the modern OM 654 engine family remains below all Euro 6d TEMP emission limits even in demanding driving situations and environmental conditions. This is achieved with an additional selective catalytic reduction (SCR) converter with an ammonia slip catalyst (ASC) in the exhaust tract of the GLE.

Other technological highlights of the four-cylinder diesel include:

  • the stepped-bowl combustion system named after the shape of the combustion recess in the piston,
  • the combination of an aluminium engine block and steel pistons,
  • enhanced NANOSLIDE® coating of the cylinder walls,
  • optimised airflow on the intake and exhaust sides,
  • two-stage charging with a smaller high-pressure and a larger low-pressure turbocharger arranged in series
  • a water-to-air intercooler and
  • the use of fourth-generation common-rail injection with pressures up to 2500 bar.

Six-cylinder petrol engine: Systematic electrification

The Mercedes-Benz GLE 450 4MATIC as the first petrol model on market launch is powered by an M 256 in-line six-cylinder engine systematically electrified with 48-volt technology (combined market launch: Its performance data: 270 kW (367 hp) and 500 Nm of torque, with a further 250 Nm of torque and 16 kW/22 hp available via EQ Boost over short periods. The integrated starter/alternator (ISG) is responsible for hybrid functions such as EQ Boost or energy recuperation, while allowing fuel savings that were previously reserved for high-voltage hybrid technology.

ISG eliminates the need for a belt drive for ancillary components at the front of the engine, which reduces its overall length. The slim design, together with the physical separation of intake/exhaust, creates space for near-engine exhaust aftertreatment. The 48-volt on-board power supply serves not only high power consumers such as the water pump and air-conditioning compressor, but also the Integrated Starter Generator (ISG), which also supplies energy to the battery by means of highly efficient energy recuperation.

The new GLE models:

 

GLE 300 d 4MATIC

GLE 350 d 4MATIC

GLE 400 d 4MATIC

GLE 450 4MATIC

Number of cylinders/arrangement

4/in-line

6/in-line

6/in-line

6/in-line

Displacement (cc)

1950

2925

2925

2999

Rated output (kW/hp)

180/245

200/272

243/330

270/367

at rpm

4200

3.400-4.600

3600-4000

5500-6100

Extra output from EQ Boost (kW/hp)

-

-

-

16/22

Rated torque (Nm)

500

600

700

500

at rpm

1600-2400

1200-3200

1200-3000

1600-4500

Add. torque from ECO Boost (Nm)

-

-

-

250

Fuel consumption combined

(l/100 km)

6.4-6.1

7,5-6,9

7,5-7,0

9.4-8.3

Combined CO2 emissions (g/km)

169-161

198-184

199-184

214-190

Emission class

Euro 6d-TEMP

Euro 6d

Euro 6d

Euro 6d-TEMP

Acceleration 0-100 km/h (s)

7.2

6.9

5.8

5.7

Top speed (km/h)

225

230

240

250

Nine gears for comfortable and efficient gear shifts

In all variants of the new GLE, power is transmitted by the 9G-TRONIC automatic transmission. The broad ratio spread of gears one to nine allows a clearly perceptible reduction in engine speed and is a decisive factor behind the high level of energy efficiency and ride comfort. The high overall efficiency is reflected in the fuel economy. Shortened shift and response times ensure optimum spontaneity combined with outstandingly smooth gear changes. Particularly in manual mode and S mode, 9G-TRONIC responds immediately and enhances driving pleasure.

The particularly good gearshifting comfort of the 9-speed automatic transmission is the result of extensive measures. These include the novel direct control system which enables short, barely perceptible gear changes. The combination of twin-turbine torsional damper and centrifugal pendulum technology in the torque converter ensures outstanding drive comfort. An additional, electric transmission oil pump is activated in start/stop operation, ensuring a basic supply to the control elements and actuators. The time delay between the desire to move off and the vehicle's actual movement is reduced by the electric transmission oil pump.

In ECO driving mode, the gliding function assists the driver's active fuel economy measures. When the driver's foot leaves the accelerator, the combustion engine is decoupled from the drive system and runs at idling speed. The vehicle rolls for a measurably longer distance than when on the overrun. When the accelerator is depressed again, the connection between the engine and drive system is re-established.

When the driving situation and charge level of the battery allow, the combustion engine is decoupled from the drivetrain and switched off, so that the vehicle can coast freely ("gliding").This involves shifting the transmission into neutral position, thereby reducing drag losses in the drivetrain. The starter-alternator serves as an electric drive and helps to extend the energy-efficient gliding phase. During deceleration, the kinetic energy from the starter-generator is converted into electric power ("recuperated") as appropriate to the driving situation and used to charge the battery.

Especially in conjunction with the new transfer case with Torque on Demand, a clear difference between the individual on-road driving modes Comfort, Sport and Sport+ (only in conjunction with eABC) is perceivable and selectable by any customer. The vehicle characteristics can be varied from neutral/slight understeer right up to slight and controllable oversteer.

DYNAMIC SELECT has the following settings in Onroad mode:

Mode

Abbreviation

Description

Eco

E

The aim is the lowest possible fuel consumption with reduced vehicle dynamics (accelerator pedal curve, maximum torque, transmission mode, gliding)

Comfort

C

The aim is a balanced drive configuration for low fuel consumption

Sport

S

Taut engine/transmission configuration (accelerator pedal curve, transmission mode)

Sport Plus*

S+

The aim is maximum dynamism and engine/transmission response; ECO start/stop is deactivated

Manual

MP

Manual transmission mode (permanent)

* Only for petrol engines in conjunction with E-ACTIVE BODY CONTROL (eABC)

[1] Figures for fuel consumption and CO2 emissions are provisional and were determined by the technical service for the certification process in accordance with the WLTP test method and correlated into NEDC figures. EC type approval and certificate of conformity with official figures are not yet available. Differences between the stated figures and the official figures are possible.

[2] The stated figures were determined in accordance with the prescribed measuring method. These are the "NEDC CO2 figures" according to Art. 2 No. 1 Implementing Regulation (EU) 2017/1153. The fuel consumption figures were calculated based on these figures. Further information on the vehicles on offer, including the WLTP values, can be found for each country at www.mercedes-benz.com

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