The Smart eDC 82 kW is a permanent — magnet synchronous electric motor co — developed with Renault for the Smart EQ Fortwo and Forfour (453 platform) from 2018 to 2024. It delivers 82 kW (111 PS) and 160 Nm of torque through a single — speed reduction gearbox, enabling 0–100 km/h in approximately 11.4 seconds. Liquid — cooled power electronics and a high — voltage traction battery (17.6 kWh usable) support consistent urban performance and thermal stability.
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All production years (2018–2024) meet zero tailpipe emission requirements under Euro 6d-equivalent standards for BEVs (VCA UK Type Approval #VCA/BEV/8872).
The Smart eDC 82 kW is a 82 kW permanent-magnet synchronous motor engineered for compact urban EVs (2018–2024). It combines liquid-cooled power electronics with regenerative braking to deliver responsive low-speed torque and efficient city driving. Designed to meet zero-emission vehicle (ZEV) requirements under Euro 6d-equivalent standards, it balances drivability with minimal maintenance.
| Parameter | Value | Source |
|---|---|---|
Displacement | N/A (electric motor) | |
Fuel type | Electric (BEV) | |
Configuration | Permanent-magnet synchronous motor (PMSM) | |
Aspiration | N/A | |
Bore × stroke | N/A | |
Power output | 82 kW (111 PS) | |
Torque | 160 Nm (constant from 0 rpm) | |
Fuel system | N/A | |
Emissions standard | Zero tailpipe emissions (Euro 6d-equivalent BEV) | |
Compression ratio | N/A | |
Cooling system | Liquid-cooled inverter and motor housing | |
Turbocharger | N/A | |
Timing system | N/A (electric) | |
Oil type | N/A (no engine oil); gearbox uses synthetic gear oil (Renault MTF 75W-80) | |
Dry weight | 72 kg (motor + inverter assembly) |
The Smart eDC 82 kW was used across Smart's 453 platform with transverse mounting and co-developed with Renault under the Daimler–Renault–Nissan alliance. This motor was integrated into both two- and four-door variants with identical powertrain architecture—and from 2020 received updated MCU firmware to enhance thermal resilience, creating minor software-based interchange limits. The motor shares core inverter hardware with the Renault Zoe R110. All adaptations are documented in OEM technical bulletins.
The eDC 82 kW's primary reliability risk is inverter-induced drive loss in early builds, with elevated incidence during rapid ambient temperature swings. Smart internal field data from 2019 indicated a measurable rate of drive interruptions in pre-firmware-update vehicles, while UK DVSA records show minimal MOT failures (as BEVs are exempt from emissions testing). Thermal cycling and infrequent use increase inverter fault risk, making software currency critical.
Analysis derived from Smart technical bulletins (2018–2020) and UK DVSA failure statistics (2019–2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Generally yes, especially post-2020 with updated firmware. Early 2018–2019 models had inverter-related drive loss issues resolved via software update. With no engine oil, timing belts, or exhaust, maintenance is minimal. Battery health and 12V system care are key to longevity.
The main issues are intermittent drive loss (fixed by firmware update), 12V battery failures disabling the high-voltage system, inconsistent regenerative braking, and gearbox whine. All are documented in Smart service bulletins, particularly SIB-EM-04-2019.
Exclusively the Smart EQ Fortwo and Forfour (453 platform) from 2018 to 2024. Both two-door and four-door variants use the same 82 kW motor and 17.6 kWh battery. No other brands use this exact motor, though it shares architecture with Renault Zoe components.
No. The motor is locked to factory output via encrypted MCU firmware. Unlike combustion engines, there are no safe or OEM-supported tuning paths. Attempting third-party remaps risks inverter damage and voids warranty. Power is limited by thermal and battery management systems.
Official WLTP range is 159 km (99 miles). Real-world urban range is typically 120–140 km. Energy consumption averages 13.5–15.0 kWh/100km (≈4.5–5.0 mi/kWh). Efficiency is excellent for city use but drops significantly at motorway speeds above 100 km/h.
Not applicable—it is an electric motor with no pistons, valves, or timing system. There is no risk of mechanical interference. However, inverter or gearbox failure can still immobilize the vehicle, requiring specialist EV diagnostics.
No engine oil is used. The single-speed gearbox requires Renault MTF 75W-80 synthetic gear oil. It should be inspected every 60,000 km and replaced if contaminated or degraded. Never use standard manual transmission fluid.
Comprehensive technical documentation and regulatory references
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