MERCEDES GLC 300 SUV (2020) Offroad

Test Off-road on MUD of Mercedes GLC 300 4MATIC (2020)

In the GLC 200 4MATIC and GLC 300 4MATIC, the four-cylinder M 264 with a 48 volt system and a belt-driven starter- alternator replaces the previous M 274 engine. When accelerating, EQ Boost can assist the 145 kW (197 hp) and 190 kW (258 hp) engines with an additional 10 kW (14 hp), bridging the brief moment before the turbocharger builds up its full charge pressure. During deceleration, the starter/alternator recuperates kinetic energy and charges the battery.

Further advantages:

"Gliding" mode with the engine switched off: on level or slight downhill stretches, the speed is maintained with the help of EQ Boost while the combustion engine is decoupled from the powertrain and switched off. It restarts as soon as the driver presses the accelerator or the battery needs recharging.
Recuperation with intelligent engine stop when rolling to a halt, e.g. at red traffic lights: Recuperation takes place during deceleration fuel shutoff (depriving the engine of fuel) when braking. When the speed falls below a minimum level, the powertrain is opened and the engine switched off even before stopping.
Both functions have the advantage of lowering fuel consumption. The start/stop system operates particularly comfortably thanks to the belt-driven starter-alternator, as the engine restarts almost silently, with low vibrations and very rapidly.

The turbocharger uses the twinscroll system. Thanks to the double-flow configuration (the exhaust ducts of each pair of cylinders come together and only join the other two just before the turbine), the torque characteristics have been improved while keeping exhaust counterpressure low.

CAMTRONIC variable valve timing is also on board. This allows two-stage adjustment of the valve lift on the intake side. In the partial-load range, a reduced valve lift allows less air into the combustion chamber, which reduces load cycle losses. In higher load ranges the system switches to the higher valve lift to achieve the engine's full power delivery.

Meets the Euro 6d standard: four-cylinder diesel with additional SCR catalyst

The four-cylinder OM 654 diesel engine replaces the preceding OM 651 engine. To reduce the nitrogen oxide emissions further under higher loads, the OM 654 is equipped with an additional underfloor SCR catalyst. Even in demanding driving situations, this engine available in three output variants in the GLC 200 d 4MATIC (120 kW/163 hp), GLC 220 d 4MATIC (143 kW/194 hp) and GLC 300 d 4MATIC (180 kW/245 hp) already meets the Euro 6d standard (RDE/Real Driving Emissions Stage 2), which will not become mandatory until 1 January 2020 for new models and a year later for all vehicles. This is made possible by various measures, including an additional selective catalytic reduction (SCR) converter with an ammonia slip catalyst (ASC) in the exhaust gas system.

Traction even in difficult conditions : 4MATIC all-wheel drive

Both functions have the advantage of lowering fuel consumption. The start/stop system operates particularly comfortably thanks to the belt-driven starter-alternator, as the engine restarts almost silently, with low vibrations and very rapidly.

The turbocharger uses the twinscroll system. Thanks to the double-flow configuration (the exhaust ducts of each pair of cylinders come together and only join the other two just before the turbine), the torque characteristics have been improved while keeping exhaust counterpressure low.

Meets the Euro 6d standard: four-cylinder diesel with additional SCR catalyst

The four-cylinder OM 654 diesel engine replaces the preceding OM 651 engine. To reduce the nitrogen oxide emissions further under higher loads, the OM 654 is equipped with an additional underfloor SCR catalyst. Even in demanding driving situations, this engine available in three output variants in the GLC 200 d 4MATIC (120 kW/163 hp), GLC 220 d 4MATIC (143 kW/194 hp) and GLC 300 d 4MATIC (180 kW/245 hp) already meets the Euro 6d standard (RDE/Real Driving Emissions Stage 2), which will not become mandatory until 1 January 2020 for new models and a year later for all vehicles. This is made possible by various measures, including an additional selective catalytic reduction (SCR) converter with an ammonia slip catalyst (ASC) in the exhaust gas system.

Traction even in difficult conditions: 4MATIC all-wheel drive

Standard equipment for the German market, 4MATIC permanent all-wheel drive is flange-mounted to the nine-speed 9G-TRONIC automatic transmission. The basic locking effect is 50 Nm. T