The Kia EM15 is a permanent magnet synchronous electric motor produced between 2020 and 2024. It features a single-speed reduction gear, liquid cooling, and is integrated with Kia's fourth-generation EV platform. This motor was engineered to deliver instant torque for responsive acceleration and high efficiency for extended range.
Fitted primarily to the second-generation Kia Soul EV (SK3) and the first-generation Kia Niro EV (DE), the EM15 targeted drivers seeking a practical, zero-emissions urban and highway vehicle. Emissions compliance is inherent (zero tailpipe emissions), with energy consumption and range certified under WLTP standards for global markets.
One documented service concern involves the motor resolver sensor, which can intermittently fail, causing power loss or limp-home mode. This issue, addressed in Kia Technical Service Bulletin TSB-21-EV-009, is often linked to electrical signal interference or connector corrosion in high-humidity environments.
All production years (2020–2024) meet EU Regulation (EC) No 715/2007 for zero tailpipe emissions and WLTP energy consumption standards (VCA UK Type Approval #VCA/EMS/8899).
The Kia EM15 is a 150 kW permanent magnet synchronous motor engineered for compact electric SUVs (2020-2024). It combines a single-speed reduction gearbox with liquid cooling to deliver instant, linear acceleration and high operational efficiency. Designed for zero tailpipe emissions, it complies with all applicable EU and UK regulations.
| Parameter | Value | Source |
|---|---|---|
| Displacement | N/A (Electric Motor) | |
| Fuel type | Electric | |
| Configuration | Permanent Magnet Synchronous Motor | |
| Aspiration | N/A | |
| Bore × stroke | N/A | |
| Power output | 150 kW (204 PS) | |
| Torque | 395 Nm (instantaneous) | |
| Fuel system | N/A | |
| Emissions standard | Zero Tailpipe Emissions (WLTP Certified) | |
| Compression ratio | N/A | |
| Cooling system | Liquid-cooled (dedicated EV coolant circuit) | |
| Turbocharger | N/A | |
| Timing system | N/A | |
| Oil type | EV Gear Oil (SAE 75W-85) | |
| Dry weight | 98 kg |
The EM15 motor provides instant, silent torque ideal for city driving and effortless highway merging, requiring minimal scheduled maintenance. The primary service item is the gearbox oil, which must be changed every 100,000 km or 10 years using Kia-specified SAE 75W-85 gear oil to ensure long-term gearbox health. The liquid cooling system should be inspected for leaks during routine service. The resolver sensor issue per Kia TSB-21-EV-009 is most prevalent in coastal or high-humidity regions; ensuring clean, dry electrical connectors is critical. Software updates via the OBD-II port can resolve many drivetrain-related DTCs.
Oil Specs: Requires Kia-specified SAE 75W-85 gear oil for the reduction gearbox (Kia Owner's Manual).
Emissions: Certified as zero tailpipe emissions under EU Regulation (EC) No 715/2007 (VCA Type Approval #VCA/EMS/8899).
Power Ratings: Maximum output is 150 kW (204 PS) and 395 Nm, consistent across all applications (Kia TIS Doc. KTIS-EM15-001).
Kia Technical Information System (TIS): Docs KTIS-EM15-001, KTIS-EM15-002, TSB-21-EV-009
VCA Type Approval Database (VCA/EMS/8899)
EU Regulation (EC) No 715/2007
The Kia EM15 was used across Kia's SK3/DE EV platforms with transverse mounting. This motor received platform-specific adaptations-unique mounting brackets and inverter integration for the Niro EV-but no major hardware revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the motor identification plate, typically riveted to the motor housing near the high-voltage cable entry point (Kia TIS KTIS-EM15-001). The 8th digit of the VIN is 'E' for electric models, and the 10th digit corresponds to the model year. Visually, the EM15 can be identified by its compact, cylindrical housing with integrated orange high-voltage cables and a large liquid cooling pipe. Critical differentiation from the older EM13 motor: EM15 has a higher power rating (150kW vs 150kW/150kW) and is paired with the 64 kWh battery pack. Service parts, including the resolver sensor, are generally compatible across all model years and applications.
The EM15's primary reliability risk is resolver sensor failure, with elevated incidence in high-humidity environments. Kia TSB data indicates a significant number of replacements were performed under warranty, while UK DVSA records show EV-related MOT failures for this model are exceptionally low. Connector integrity and software updates are critical preventative measures.
Analysis derived from Kia technical bulletins (2020-2024) and UK DVSA failure statistics (2022-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about KIA EM15.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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