the plug-in hybrid that drives away

While the Mercedes EQS limousine announces the best range of 100% electric cars (up to 784 km on a single charge!), The new Mercedes C-Class also marks its small record among plug-in hybrid family cars: 111 km electric maximum . range in the WLTP mixed cycle, when the BMW 330e and the Volkswagen Passat GTE travel only 60 km before restarting its petrol engine. The secret of class C 300 e? It has twice the capacity of the battery, announced with 25.4 kWh, more than a 100% electric model of five years (the Renault Zoe and the BMW i3 limited the 22 kWh until 2016).

The C-Class 300 e connects a 204 hp 2.0 turbo petrol engine to a 129 hp electric motor. They combine 313 hp and 550 Nm of maximum torque.

His second strong argument concerns his recharging speed. Capable of drinking water, like some rivals, from 11 kW public terminals (a full charge then takes 2 hours, instead of 14 hours from a domestic outlet), the Class C 300 e also collects recharges in a terminal fast while running continuously up to a power of 55 kW. Enough to 100% battery life in 30 minutes, or time for a sandwich on a long trip. Naturally, these qualities weigh heavily on the scales, first very real, then the price: with 2,080 kg and a minimum of € 59,400, the C 300 e weighs 430 kg more and starts at € 8,850 more than a 204 hp C 200 petrol engine.


Class C plug-in hybrid price

Like other engines, the C 300 e offers the choice between three levels of finish. The € 59,400 Avantgarde Line already includes two 12-inch screens, 64-color ambient lighting, heated front seats, reversing camera and induction charging; the € 60,300 Business Line adds metallic paint, while the € 62,350 AMG Line enhances the shields, rims, seats and steering wheel, but leaves aside the steering and sports chassis of the thermal versions, which are not compatible with the plug-in hybridization. Despite the nice price, the use of options, unfortunately, is still essential to benefit from a simple hands-free key, an adaptive cruise control or a cable for 8 m public terminal instead of 5 m ( then a little short because the loading door is located). on the left side, in front of the sidewalk). Detailed on the next page, the attractive option packages range from € 3,750 to … € 8,150.

Mercedes Class C 2022 meters
12.3-inch digital instrumentation comes standard in France.
Mercedes C-Class hybrid price
The C 300 e exists in sedan and family for € 1,500 more.

No bonus is available to soften the price of the C 300 e, the € 1,000 bonus allocated until June 30, 2022 being reserved for plug-in hybrid models billed for less than € 50,000. Even integrating the exemption of all or part of the cost of the gray card (also offered in the other Class C with simple light hybridization), the additional cost of the technology will be almost impossible to make profitable for an individual. Professionals are better off here thanks to a total exemption from the company vehicle tax (TVS), which would reach new levels in an equivalent power model (313 hp combined here).


Electrical range: almost 100 km!

Located in the nine-speed gearbox, only the electric motor develops 129 hp and 440 Nm of maximum torque. Enough to start quickly with the green light but not to activate the reminders, beyond 100 km / h. On our test route for plug-in hybrid models (combining secondary roads at 80 km / h, motorways at 110 km / h and crossings of fluid villages), the C 300 covered 97 km without waking up its heat engine, which is very . , far beyond a Peugeot 508 SW Hybrid 225 (37 km) and the former leader in our ranking, the plug-in Toyota RAV4 hybrid plug (66 km). The Mercedes would have even surpassed the 100km mark with a milder climate, with the thermometer reaching a maximum of only 5 ° C during our test.

Autonomy Mercedes electric hybrid
Mercedes CCS combination plug

This beautiful range not only allows you to avoid daily network connections, but also significantly reduce fuel consumption in long stages. If the electric range drops to 60 km at 130 km / h, it can equal the average fuel consumption of a diesel after several hundred kilometers (see details in the following chapters). Because our pre-production model did not have a DC charger, we were unable to test the fuel supply at fast terminals. But its interest will depend mainly on the tariff applied by energy suppliers. Without a subscription to Ionity, for example (which charges € 0.79 per minute of charging), staying connected for 30 minutes will cost € 24 but will barely offer 60km of autonomy on the highway. Lead-free driving will be two and a half times cheaper in this particular case, the C-Class is not as greedy an empty battery. Demonstration.


Test class C 300 and on the highway

Mercedes C-Class Hybrid 2022 Review

On the 130 km / h real highway, the C-Class was made up of 7.5 l / 100 km with a “flat” battery. This value will drop if the battery is charged before output, as shown in our average chart below. Reasonable values ​​are allowed for the care of aerodynamics, which also serves for good soundproofing of air noise at this speed. Hybridization ultimately contributes to this sobriety, as the battery regenerates slightly on descents before recovering the energy that supports the 2.0 204 hp petrol in the ribs.

Too bad you have to use options to have the corresponding semi-autonomous driving system, combining adaptive cruise control with active centering in the lane in an extended pack billed at € 2,350. The latter was absent from our Class C test, which consisted of a beep or vibrating its steering wheel when the car was riding on a continuous line.

Highway fuel consumption with 100% battery at start-up *

50 km route

100 km of route

200 km of route

500 km of route

0 l / 100 km

3 l / 100 km

5.3 l / 100 km

6.6 l / 100 km

* Estimated average on the motorway after leaving with a full battery, without recharging during the journey, taking into account an electrical range of 60 km and an empty battery consumption of 7.5 l / 100 km.


Road test class C 300 e

Class C hybrid review

The same exercise here with a class C the caliber of the battery barely exceeded 0% at first. On a side road interspersed with deserted villages, the paddles behind the wheel become invaluable allies: once on the left it reinforces the decelerating energy recovery, once on the right they allow the car to maintain the maximum possible momentum. . The lazy ones can let the automatic mode do its thing, which adapts the level of regeneration according to the environment and / or the speed limits. A well-managed system, comparable to that of the latest 100% electric Volkswagens.

After a hundred kilometers of mountain roads, our C-Class has stabilized at 6.4 l / 100 km while respecting the speed limits. At the same time, it was distinguished by its iron health when its two engines go hand in hand, when Sport mode is activated or when the right pedal is crushed. The accumulated 550 Nm of torque allows you to dispatch advances without a straight-line response time (even discharged battery), but the weight feels more on a tortuous route. Heavy hybridization alters the beautiful agility of the AMG Line C-Class, which has no right to the chassis and “sporty” steering of the thermal versions. The result is a less incisive front axle and more inertia when changing course. On the other hand, the overweight does not alter the damping thanks to the arrival of a pneumatic rear suspension that annihilates any pumping movement in the successions of blows. Comfort remains strong in the city, however, where Class C shows other flaws.

Fuel economy on the road with a 100% battery at the start *

50 km route

100 km of route

200 km of route

500 km of route

0 l / 100 km

0.2 l / 100 km

3.3 l / 100 km

5.2 l / 100 km

* Estimated average on roads and highways after a full battery output, without recharging during the journey, taking into account an electrical range of 97 km and an empty battery consumption of 6.4 l / 100 km.


Class C 300 test in the city

Mercedes C300 Review

A consumer table would make no sense here. Mileage in the city is low, and the appetite of the Mercedes C-Class is quite volatile there when the battery is not recharged. When it comes to crossing a village on the road, engine and passenger compartment at room temperature and battery slightly regenerated by previous braking, the C 300 e can be dragged in electric at 50 km / h stabilized and shows a consumption of only 5.5 l / 100 km. If the plugs drag or the traffic lights multiply, the value will be closer to 8 l. The take-offs of this heavy sedan from the stop demand more from the combustion engine, which wakes up from 30 km / h with a light foot, or even immediately if you do not dose the accelerator.

But it is the short cold journeys that penalize consumption the most, as the 2.0 runs at high speed after a long sleep, especially in winter to regenerate the battery and then supply the heating. Then, the computer can exceed 10 l / 100 km and quickly disappoint users who do not play the recharge game (connecting to the network also allows you to schedule heating before departure to avoid “stretching” the battery). At the same time, the C-Class is less pleasant to drive around the city with noticeable shocks to the asymmetrical deformations of the road, a front bumper that often rubs against speed reducers and braking difficult to dose, as is often the case in electrified models. The inconsistent movement of the pedal and the impossibility of making a progressive braking before stopping degrade the fluidity of walking around the city, like the small shocks that are sometimes felt when going up or down in electric mode. To be refined.

Aboard the C 300 and AMG Line

Interior of Class C AMG
Easy to find driving position, intuitive central screen oriented 6 ° towards the driver, large storage spaces: the C-Class 2022 is pleasant to live in.
Driving styles
Electric, hybrid, charge maintenance, sports and individual, or the five driving modes available in the C 300 e.
Mercedes box
In sport, paddles are used to shell out nine reports manually and not to modulate energy recovery.

Mercedes hybrid trunk
The battery slightly raises the floor of the trunk, which loses one hundred liters of volume.
Mercedes C hybrid charging cables
It also removes underground storage, so it’s enough to house the charging cables …

Find all test results, specs, and all Class C 300 prices, equipment, and options on the next page.

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