2025 • Sedan

~61–87 km Real-World
28.6 kWh Gross • NMC
⚡ DC 60 kW (~20 min 30–80%)
Physical range calculations based on seasonal ambient temperatures, cabin HVAC load, and highway cruising aerodynamics.
Freezing cell electrolyte drag & cabin heating HVAC load
Optimal cell chemistry temperature & max city regeneration
High-speed aerodynamic drag & continuous inverter draw
Interactive simulator with live elevation, highway cruising speeds, ambient temperature & cabin HVAC
Calculate Benefit-in-Kind (BiK), Germany 0.5% Dienstwagen tax, France Malus, and 2026/2027 fleet savings.
Tested year 2021: Adult (96%), Child (91%).
The Mercedes-Benz S-Class (2025) is engineered with a 28.6 kWh gross (22.5 kWh usable) traction battery, delivering an official homologated WLTP electric range of 77 km. In real-world European driving conditions, drivers should anticipate approximately ~71 km in mild urban commuting, tapering down to around ~49 km during sub-zero motorway driving (130 km/h) due to cabin HVAC heating and aerodynamic drag. Replenishing the battery takes around ~20 minutes (10–80%) at 60 kW DC fast chargers, or ~2.3 hours via an 11 kW AC Wallbox.
Calculate how ambient winter temperature, 130 km/h highway speeds, terrain elevation, and cabin heating impact the Mercedes-Benz S-Class's battery in real time.
28.6 kWh gross
Equipped with a large 28.6 kWh pack (22.5 kWh net usable), the S-Class sits in the upper percentile of European plug-in hybrids, offering true zero-emission range that rivals dedicated urban EVs.
While official WLTP laboratory figures state 77 km, drivers should anticipate approximately ~71 km in temperate urban commutes, and around ~49 km during sub-zero motorway trips with cabin heating.
11 kW AC Onboard
A standard 11/22 kW home wallbox will replenish the pack in approximately ~2.3 hours. Thanks to 60 kW DC fast charging support, quick roadside boosts from 10% to 80% can be completed in approximately ~20 minutes.
| Specification | Official Homologated Value | European Segment Context |
|---|---|---|
| WLTP Electric Range | 77 km | Above Average |
| Battery Capacity | 28.6 kWh gross (22.5 kWh net) | Ultra High-Capacity PHEV |
| Total System Power | 510 HP | High Performance |
| Charging Capabilities | 11 kW AC + 60 kW DC Rapid | Motorway Fast-Charge Ready |
| CO₂ Emissions & Fuel Consumption | 41 g/km • 1.8 L/100km | Euro 6e-bis Compliant |
Daily Commute & Efficiency Verdict: For European motorists with typical round-trip daily commutes of ~30–40 km, the Mercedes-Benz S-Class's 77 km electric range can comfortably cover ~2.3 days of routine driving on pure electricity before triggering the combustion engine.
Euro 6e-bis & Corporate Fleet Impact: With an official rating of 41 g/km CO₂ and 1.8 L/100km fuel consumption, this vehicle benefits from competitive tax brackets across major European markets. Under revised 2026/2027 Euro 6e-bis Utility Factor calculations, high electric range models like this retain substantially lower Benefit-in-Kind (BiK) and company car tax liabilities compared to older generation PHEVs.
With 77 km electric range and 41 g/km CO₂, this model qualifies for an estimated UK BiK rate of 5% (Low). Shorter range PHEVs face stricter testing utility factors under 2026/2027 fleet rules.
✓ Data verified from official manufacturer WLTP test sheets, European regulatory filings, and Euro NCAP crash databases.
Updated: October 2026 • Verified by PHEVs.eu Technical TeamFactual charging durations (domestic socket & Wallbox), European high-voltage battery warranty terms, and degradation expectations.
With its 28.6 kWh gross (22.5 kWh usable) battery, charging the Mercedes-Benz S-Class from a standard domestic socket (2.3 kW / 10A Schuko or 3-pin) takes approximately 11.3 hours. Installing a dedicated 11 kW home AC Wallbox reduces this to roughly 2 hours. For long motorway journeys, the Mercedes-Benz S-Class supports DC CCS2 fast charging at up to 60 kW, reaching 10% to 80% in about 20 minutes at motorway service stations. Charging overnight on off-peak electricity tariffs yields up to 70% running cost savings compared to petrol.