The W166 M-Class became the GLE at its facelift. The ordinary five-door SUV remained in the 166 generation; the GLE Coupé is C292, while the larger seven-seat GL / GLS is X166. Sources
Air springs, dampers and anti-roll bars
The original M-Class could combine AIRMATIC air suspension, ADS adaptive damping and ACTIVE CURVE SYSTEM. They work on different parts of the suspension: air springs support and level the body; the dampers control suspension movement; active front and rear anti-roll bars counter body roll in bends. Mercedes-Benz Hong Kong described ACTIVE CURVE SYSTEM as an option in April 2012, and a local ML 500 road test that month recorded a car equipped with it. Sources
See how ACTIVE CURVE SYSTEM uses hydraulic roll control for the shared 166 mechanism.
Low range adds mechanical reduction
The Hong Kong ML 350 launch material already listed 4MATIC, 4ETS electronic traction control, an off-road button and Downhill Speed Regulation. The optional ON&OFFROAD package added a two-stage transfer case with reduction gearing, a centre differential lock and extended AIRMATIC functions. The basic off-road mode and the full package therefore describe different hardware configurations. Sources
The ON&OFFROAD explainer follows the separate jobs of low range, the front-to-rear differential lock and brake-based wheel-to-wheel traction control.
The plug-in hybrid can refrigerate with its engine stopped
The W166 GLE plug-in hybrid’s electric refrigerant compressor and electric heater are described in its 2016 North American manual. The high-voltage battery can power the compressor while the petrol engine is stopped, allowing cooling and dehumidification. This also supports cabin preconditioning before departure. Sources
Read the W166 section of engine-off climate control for the manual’s separate key-triggered, scheduled and short-stop operating modes.
An auxiliary pump helps the automatic work with stop/start
The Hong Kong ML 400 4MATIC arrival report in March 2014 linked its 7G-TRONIC PLUS transmission’s compatibility with ECO stop/start to a separate pump operating according to demand. The pump is part of the transmission’s provision for stop-and-restart operation, while other revisions target losses when the drivetrain is running: the same account describes lower-friction components, lower-viscosity transmission fluid and a revised torque converter suited to low-load, low-speed operation. Sources
Mercedes-Benz Hong Kong’s earlier M-Class release likewise paired ECO stop/start with the revised converter, friction-optimised bearings and transmission-oil thermal management. Sources
The rear cushion moves before the backrest folds
The original W166’s rear seats create a level load area by moving both the cushions and the backrests. The manufacturer’s manual describes the cushion tipping upwards first, followed by the backrest folding forwards into its cargo position. Moving the cushion clears space for the backrest; the manual warns that reversing the sequence can damage it. The left and right backrests fold separately. Sources
Mercedes-Benz Hong Kong described the same cushion-and-backrest arrangement at the original M-Class introduction. It also listed adjustable rear-backrest angles for passengers, combining comfort adjustment and cargo conversion in the same seating layout. Sources
Active Parking Assist takes the steering task
The original-generation Active Parking Assist uses ultrasound to measure spaces beside the vehicle and steers it into a suitable parallel space. In the 2013 North American M-Class manual, the driver still operates the accelerator and brakes and selects D or R when prompted. PARKTRONIC provides distance warnings during the manoeuvre; Active Parking Assist adds steering intervention. Sources
The Canadian 2012 M-Class brochure offered PARKTRONIC with Active Parking Assist in its Premium Package. Sources
Two kinds of belt tensioning
The original M-Class’s PRE-SAFE electrically tightens the front seat belts when it recognises certain hazardous situations. If the danger passes without an accident, it releases that extra tension. Its electrically operated pretensioners are reversible and do not require replacement merely because they have activated. Mercedes-Benz Hong Kong listed PRE-SAFE in the original M-Class’s standard safety package. Sources
The manual distinguishes those electric actuators from the pyrotechnic Emergency Tensioning Devices used for accident restraint. Once a pyrotechnic device has fired, it must be replaced. The belt system therefore has both a reversible preparatory action and a separate one-use crash-restraint action. Sources
The plug-in hybrid releases tank pressure before refuelling
The facelift W166 GLE plug-in hybrid’s fuel-flap request starts a tank-pressure release sequence. In the 2016 North American manual, the switch indicator flashes while the instrument display says “Please Wait Depressurizing Tank”. Once pressure has been released and the filler is unlocked, the indication changes to “Tank is Depressurized Ready for Refueling”. The flap cannot be opened until pressure has been released. Sources
The petrol ML 350 uses multi-spark ignition
Mercedes-Benz Hong Kong’s original M-Class release identifies multi-spark ignition in the petrol ML 350 4MATIC BlueEFFICIENCY alongside its piezo direct injection. The two functions act on different parts of combustion: the injectors meter fuel, while the ignition coil can recharge before fully discharging to produce another spark in the same ignition cycle. Sources
For this original naturally aspirated M276 V6 application, see how multi-spark ignition works.
The heated and cooled cupholder has a key restriction
The available temperature-controlled front cupholder in the original North American M-Class manual keeps cold drinks cool and warm drinks warm. Blue and red indicators identify its modes. In heating mode, its metal insert heats up, with a residual-heat lamp warning when the insert is hot. Sources
The same manual gives a specific restriction: do not leave the KEYLESS-GO key in this cupholder, because it will not be recognised there. Sources
Hong Kong: from ML to GLE
| Date | Documented local milestone Sources |
|---|---|
| April 2012 | Mercedes-Benz Hong Kong’s 13 April release said the new M-Class was available locally and named the petrol ML 350 4MATIC BlueEFFICIENCY. A 30 April local test documented the ML 500 4MATIC BlueEFFICIENCY, a 4.7-litre V8 press car priced at HK$1,048,000. |
| March 2014 | A 23 March arrival report introduced the ML 400 4MATIC, with a 3.0-litre biturbo V6 and 7G-TRONIC PLUS, at HK$799,000. |
| June 2015 | Local reporting on 20 June documented the facelift GLE presentation and IFC display. Prices followed on 30 June: GLE 400, GLE 500 and Mercedes-AMG GLE 63 were listed in the ordinary-SUV table. The first two used 7G-TRONIC PLUS; the AMG used AMG SPEEDSHIFT PLUS 7G-TRONIC. |
| November 2016 price record | A Hong Kong GLE 500 e plug-in hybrid listing was updated on 23 November, at HK$1,099,000. Its local introduction month remains unconfirmed. |
The GLE 500 in the 2015 Hong Kong price table is a 4.7-litre V8; the GLE 500 e is a V6 plug-in hybrid. The GLE Coupé had a separate local range, including diesel and GLE 450 AMG versions, with its own price table. Sources
Sources
- Mercedes-Benz, M-Class / GLE SUV (166), 2011–2018, manufacturer rescue-card record identifying the ordinary SUV body.
- Mercedes-Benz Public Archive, GLE double premiere in New York, 3–12 April 2015, identifies GLE as the updated 166 series; international event, not Hong Kong introduction.
- Mercedes-Benz Hong Kong, A generation ahead: the new Mercedes-Benz M-Class, 13 April 2012, manufacturer-authored release preserved by 1888PressRelease: local availability, petrol ML 350 and multi-spark ignition, standard PRE-SAFE and off-road functions, optional ON&OFFROAD/ACTIVE CURVE systems, transmission-efficiency measures, adjustable rear-backrest angles and cushion/backrest folding.
- Teddy Leung, Car1, Mercedes-Benz ML500 BlueEFFICIENCY 越野。環保。豪華。, 30 April 2012, Hong Kong ML 500 press car, price, AIRMATIC and ACTIVE CURVE SYSTEM; not a first-delivery record.
- Car1, 全新平治 ML400 正式抵港, 23 March 2014, local ML 400 arrival announcement, 3.0-litre biturbo V6 and 7G-TRONIC PLUS; its second body paragraph links a separate demand-controlled pump to ECO stop/start and describes the converter, lower-friction components and lower-viscosity fluid.
- Car1, Mercedes-Benz 全新 GLE 及 GLE Coupe 今日抵港, 20 June 2015, Hong Kong presentation and IFC display; much of the technical body concerns C292 Coupé, not W166.
- Car1, Mercedes-Benz GLE 及 GLE Coupe 售價公開, 30 June 2015, separates the earlier presentation from price publication. Its linked ordinary-SUV table names GLE 400, GLE 500 and AMG GLE 63 with seven-speed transmissions; the Coupé table is separate.
- DCFever, Mercedes-Benz GLE500e (Plug-in Hybrid) 香港規格、價錢、牌費及介紹文, last price update 23 November 2016: Hong Kong GLE 500 e listing at HK$1,099,000. Its unspecified “2015” introduction year does not establish a local launch month; system-output figures are not used.
- Mercedes-Benz, GLE Operator’s Manual, 1665847203, Edition B 2016, as at 9 March 2015; printed pp. 126, 139–141, 163–164, 242, 244 / PDF pages +2: electric climate hardware and pre-entry functions, plug-in hybrid tank-pressure release and fuel-flap opening, high-voltage supply and electric heater. North American documentation; its pressure-release sequence is separate from the non-plug-in models’ central-locking description.
- Mercedes-Benz, M-Class Operator’s Manual, 1665848681, Edition B 2013, as at 10 May 2012, printed pp. 54, 59, 79, 217–220, 336–337, 344 / PDF pages +2: reversible electric PRE-SAFE and pyrotechnic belt tensioning; KEYLESS-GO cupholder restriction; original Active Parking Assist sensing, steering and driver tasks; cushion-first rear-seat folding; temperature-controlled cupholder modes and heated metal insert. North American documentation including optional and country-dependent equipment.
- Mercedes-Benz Canada, The all-new 2012 M-Class, printed p. 21 / PDF p. 23: Premium Package including PARKTRONIC with Active Parking Assist. Manufacturer-authored Canadian brochure preserved by Sportlich Leicht.
- Mercedes-Benz, GLE PLUG-IN HYBRID Supplement, 1665847305, Edition A 2017, as at 6 November 2015, printed pp. 27–28 / PDF pp. 29–30: fuel-tank pressure must be released before refuelling, wait/ready messages and fuel-flap access. Later North American corroboration of the interlock.
- Daimler AG / Mercedes-Benz Service, Introduction of the New Generation of V-Engines, 6 and 8-cylinder M 276/M 278, May 2010, order 6516 1379 02, printed pp. 66–67 / PDF pp. 67–68: multi-spark ignition using current monitoring and partial discharge/recharge. Original manufacturer engine-family publication preserved by W124 Performance; the Hong Kong M-Class release separately establishes the petrol ML 350 application. Market-specific combustion versions are distinguished on printed p. 8 / PDF p. 9.