Mercedes E 350e PHEV Review: 2017 Specs, Range, Ownership

The Mercedes E 350e plug-in hybrid marked a pivotal moment for the E-Class lineup in 2017, introducing cutting-edge electrification to one of the most prestigious executive saloons. Combining a responsive 2.0-litre petrol engine with a potent electric motor, this model delivers a total output of 282bhp and 550Nm of torque, ensuring smooth acceleration and serene driving. Its official figures boast an extraordinary 134mpg and CO2 emissions of just 57g/km, making it a standout for eco-conscious professionals, particularly those in company car schemes with an 11% Benefit-in-Kind tax rating.

Powertrain and Performance Excellence

At the heart of the E 350e lies a sophisticated powertrain that seamlessly integrates a turbocharged 2.0-litre four-cylinder petrol unit producing around 211bhp with an electric motor adding 109bhp. This setup propels the saloon from 0-62mph in approximately 6.2 seconds, with instant electric torque providing effortless low-speed responsiveness. In pure electric mode, drivers can expect brisk performance, achieving 0-60km/h in about 8 seconds, ideal for urban commuting where silence and smoothness reign supreme.

Mercedes’ Intelligent Hybrid system enhances efficiency through predictive strategies, including radar-based recuperation and a haptic accelerator pedal that intuitively switches between electric and petrol power. The pedal’s dual-stage feedback—initially engaging the motor before activating the engine—offers precise control, mimicking advanced gaming interfaces for intuitive driving. Once the 6.2kWh battery depletes, real-world fuel economy settles around 35mpg, comparable to premium petrol models but lagging behind diesels by about 10mpg. Regular charging unlocks superior figures, especially for short trips.

Electric Range and Charging Realities

Mercedes claims up to 21 miles of electric-only driving, though testers report closer to 15-23km (9-14 miles) in mixed conditions, still sufficient for daily errands without emitting pollutants. A standout test achieved nearly 23km on a full charge before the petrol engine intervened, highlighting the battery’s potential for extending fuel stops beyond 100km in hybrid use. Charging takes about three hours on a standard wall socket or 1.5 hours with a Mercedes Wallbox, enabling overnight top-ups for maximum benefit.

Compared to rivals like the BMW 530e, which offers around 25 miles of EV range, the E 350e holds its own while prioritizing weight distribution with the battery mounted at the rear. This setup maintains the E-Class’s renowned balance, ensuring agile handling without compromising the saloon’s grand touring poise.

Interior Refinement and Technological Marvels

Step inside, and the E 350e’s cabin exudes executive opulence, with supple leather, ambient lighting, and vast dual screens dominating the dashboard. The COMAND infotainment system, though occasionally fiddly with touchpad controls, supports Apple CarPlay and boasts a 360-degree camera, head-up display, and multibeam LED headlights for superior visibility. Noise insulation in EV mode creates a library-quiet haven, elevating comfort beyond even top hybrids like the Toyota Camry.

Advanced driver aids include semi-autonomous features, though in 2017 they were still maturing, requiring occasional driver input. Seats provide firm yet supportive embrace, minimizing fatigue on long hauls and absorbing minor imperfections via air suspension.

Dynamic Driving Experience

On British roads, the E 350e glides with composure, its electric boost delivering torque-rich launches that feel effortless. The suspension iron outs undulations, though low-profile tyres transmit the odd pothole thump—a common trait in premium saloons. Steering is precise yet insulated, suiting motorway cruises where adaptive cruise control and lane-keeping shine.

This table underscores the E 350e’s competitive edge in power and luxury, though rivals edge in tax efficiency.

Practicality and Everyday Usability

• Boot Space: The battery slightly reduces luggage capacity to 400 litres, but it’s ample for executive needs.
• Family-Friendly: Rear legroom rivals top-class competitors, with ISOFIX points standard.
• Running Costs: Low BiK and potential for 100+km between fills make it a fleet favourite.
• Charging Infrastructure: Home Wallbox recommended for optimal use.

Daily drivers praise the ‘funky’ haptic accelerator in Eco mode, which encourages efficient habits without intrusion.

Pros and Cons at a Glance

• Pros: Ultra-efficient when charged, luxurious interior, strong performance, advanced tech suite.
• Cons: Reduced EV range vs. rivals, fiddly infotainment, pothole sensitivity on low-profile rubber.

Who Should Consider the E 350e?

Ideal for company car users valuing low taxes, urban commuters with charging access, and luxury seekers wanting green credentials without sacrificing refinement. It’s less suited for long-distance drivers ignoring plugs, where diesels prevail.

Frequently Asked Questions (FAQs)

How far can the Mercedes E 350e drive on electric power alone?

Official claims are 21 miles, but real-world tests yield 15-23km depending on conditions and driving style.

What’s the charging time for the E 350e battery?

Approximately 3 hours on a standard outlet or 1.5 hours with a Wallbox.

Is the E 350e more efficient than a diesel E-Class?

Only when regularly charged; otherwise, it matches around 35mpg versus diesels’ 45mpg.

How does the E 350e compare to the BMW 530e?

Similar performance and luxury, but BMW offers better EV range and lower BiK tax.

Are there any common issues with the 2017 E 350e?

Tyre vulnerability to potholes and maturing autonomous tech noted in reviews.

Long-Term Ownership Insights

Owners report high satisfaction with refinement and economy, though maintenance for hybrid components requires Mercedes specialists. Warranty covers the battery for 8 years/100,000 miles, ensuring peace of mind. Resale holds strong due to E-Class prestige.

In summary, the 2017 E 350e pioneered PHEV luxury, proving hybrids could thrill without compromise. Its blend of silence, speed, and smarts endures as a benchmark.