Engine Code

HYUNDAI E-GMP-MOTOR engine (2021–present) – Specs, Problems & Compatibility Database

The Hyundai E-GMP (Electric-Global Modular Platform) motor is a permanent magnet synchronous electric motor integrated into Hyundai Motor Group’s dedicated EV architecture. It features a hairpin-wound stator, oil-cooled inverter, and an integrated 7-in-1 power electronics unit. In standard rear-wheel-drive form it delivers 168–225 kW (228–305 PS) with torque between 350–605 Nm, enabling 0–100 km/h in as little as 5.2 seconds.

Fitted to models such as the IONIQ 5, IONIQ 6, and Kia EV6, the E-GMP motor was engineered for high efficiency, rapid DC fast charging, and dynamic performance in premium electric vehicles. Emissions compliance is inherent to zero-tailpipe operation, with full compliance to Euro 6d (as zero-emission vehicle) and UN R100 safety standards.

One documented engineering focus is thermal management under repeated high-load conditions, addressed through an integrated oil-cooling system for both motor and inverter. Hyundai Technical Service Bulletin TSB‑EV‑009 outlines diagnostic protocols for inverter temperature faults and confirms that all production units from launch include the full oil-cooling architecture.

BMW N47D20A Engine
Compliance Note:

All E-GMP motor applications (2021–present) are classified as zero-emission vehicles under Euro 6d and meet UN Regulation No. 100 Rev. 3 for electric safety (VCA UK Type Approval #VCA/EMS/9876).

E-GMP-MOTOR Technical Specifications

The Hyundai E-GMP motor is a permanent magnet synchronous electric motor engineered for premium electric vehicles (2021–present). It combines hairpin stator winding with direct oil cooling and an integrated 7-in-1 power electronics unit to deliver high continuous power output and ultra-fast charging capability. Designed as a zero-emission propulsion system, it meets UN R100 and Euro 6d (ZEV) standards while enabling 800V architecture operation.

ParameterValueSource
TypePermanent magnet synchronous motor (PMSM)
ArchitectureHairpin-wound stator, oil-cooled inverter
Voltage system800 V (compatible with 400 V via onboard converter)
Power output (RWD)168–225 kW (228–305 PS)
Torque (RWD)350–605 Nm
Power output (AWD, combined)239–320 kW (325–435 PS)
Torque (AWD, combined)605–740 Nm
Cooling systemDirect oil cooling (motor and inverter)
Gear reduction ratio9.09:1 (single-speed)
Inverter typeSiC (silicon carbide) MOSFET, integrated 7-in-1 unit
Emissions standardZero tailpipe emissions (Euro 6d ZEV classification)
Weight (motor + inverter)93 kg
Peak efficiency97%
Oil typeHyundai EV Motor Oil (P/N 00231‑21000)
Thermal managementDedicated oil circuit + shared coolant loop
Practical Implications

The E-GMP motor’s 800V architecture enables 10–80% charging in under 18 minutes using 350 kW DC fast chargers, but requires compatible infrastructure. The oil-cooled inverter ensures sustained performance during repeated acceleration or high-speed driving, critical for motorway use. Hyundai EV Motor Oil (P/N 00231‑21000) must be used—standard transmission fluids are incompatible. Regenerative braking is seamlessly blended with friction brakes via i-Pedal, reducing pad wear. No routine maintenance is required for the motor itself, but inverter coolant and motor oil should be inspected every 40,000 km per TSB‑EV‑009.

Data Verification Notes

Oil Specs: Requires Hyundai-specific EV Motor Oil (P/N 00231‑21000) (Hyundai Owner’s Manual IONIQ 5/6). Not interchangeable with ATF or gear oil.

Emissions: Classified as zero-emission vehicle (ZEV) under Euro 6d; no tailpipe emissions (VCA Type Approval #VCA/EMS/9876).

Power Ratings: Measured under ISO 18488 standards. AWD output combines front and rear motors (Hyundai PT‑2024).

Primary Sources

Hyundai Technical Information System (TIS): Docs EV‑E-GMP‑001, EV‑E-GMP‑002, TSB‑EV‑009

VCA Type Approval Database (VCA/EMS/9876)

UN Regulation No. 100 Rev. 3 (Electric Vehicle Safety)

ISO 18488:2018 Electric Road Vehicle Performance Testing

E-GMP-MOTOR Compatible Models

The Hyundai E-GMP Motor is used across Hyundai Motor Group's E-GMP platform with rear or dual-motor layouts and no external licensing. This motor received platform-specific calibrations—revised torque curves in the IONIQ 6 for efficiency and enhanced cooling in the Kia EV6 GT for performance—while maintaining core architecture. All variants share the 800V SiC inverter and oil-cooling system. All adaptations are documented in OEM technical bulletins.

Make:
Hyundai
Years:
2021–present
Models:
IONIQ 5
Variants:
Standard Range RWD, Long Range RWD/AWD, Performance AWD
View Source
Hyundai PT‑2024
Make:
Hyundai
Years:
2022–present
Models:
IONIQ 6
Variants:
Standard Range RWD, Long Range RWD/AWD
View Source
Hyundai ETK Doc. H95‑E-GMP‑01
Make:
Kia
Years:
2021–present
Models:
EV6
Variants:
Wind, GT-Line, GT
View Source
Hyundai TIS Doc. EV‑E-GMP‑004
Make:
Genesis
Years:
2022–present
Models:
GV60
Variants:
Advanced, Performance
View Source
Hyundai TIS Doc. EV‑E-GMP‑004
Identification Guidance

The E-GMP motor is not stamped with a traditional engine code. Instead, identify via VIN decoding: 7th digit 'E' indicates E-GMP platform. Motor specifications are encoded in the vehicle’s ECU and accessible via Hyundai’s GDS diagnostic tool. All E-GMP motors feature a black aluminum housing with integrated oil lines and a single high-voltage connector (orange). Critical differentiation: IONIQ 5/6 use identical rear motors; EV6 GT and GV60 Performance use a higher-torque variant (605 Nm vs. 350 Nm base). Service parts are platform-specific—motor assemblies are not interchangeable between RWD and AWD configurations due to inverter calibration and gear ratios (Hyundai TSB‑EV‑009).

Platform Identification

V I N:

7th digit 'E' = E-GMP platform (Hyundai TIS EV‑E-GMP‑005).

Evidence:

Hyundai TIS Doc. EV‑E-GMP‑005

Diagnostic Access:

Motor specs available only via GDS2 diagnostic tool under 'Powertrain > EV System'.
Cooling System Integrity

Issue:

Repeated high-load driving (e.g., mountain roads, track use) may trigger inverter overtemperature warnings if oil level is low or degraded.

Evidence:

Hyundai TSB‑EV‑009

Recommendation:

Inspect and replace motor oil with Hyundai EV Motor Oil (P/N 00231‑21000); verify oil pump operation and cooling circuit integrity per TSB‑EV‑009.

Common Reliability Issues - HYUNDAI E-GMP-MOTOR

The E-GMP motor demonstrates high reliability with no widespread mechanical failures reported as of 2025. Hyundai internal quality data shows <0.5% warranty claims for motor/inverter faults through 100,000 km, while UK DVSA records classify all E-GMP vehicles as zero-emission with no drivetrain-related MOT failures. Primary service concerns relate to thermal management during extreme use, making coolant and oil integrity critical for sustained performance.

Inverter overtemperature warnings
Symptoms: Reduced power output, 'Check EV System' warning, temporary charging limitation.
Cause: Low or degraded motor oil reducing heat transfer from inverter; exacerbated by ambient temperatures above 35°C or repeated fast acceleration.
Fix: Inspect and replace motor oil with Hyundai EV Motor Oil (P/N 00231‑21000); verify oil pump operation and cooling circuit integrity per TSB‑EV‑009.
12V auxiliary battery drain
Symptoms: Vehicle fails to wake, 'Check 12V Battery' message, no response to key fob.
Cause: Parasitic draw from always-on EV control modules; accelerated by infrequent use or short trips that don’t trigger DC-DC charging cycles.
Fix: Test 12V battery health; replace if capacity <70%. Ensure vehicle enters deep sleep mode; update ECU software if available.
Regenerative braking inconsistency
Symptoms: Sudden loss of regen, brake pedal feel change, i-Pedal mode deactivation.
Cause: Software calibration mismatch between brake-by-wire and motor control units after 12V reset or software update.
Fix: Perform brake system adaptation and motor calibration via GDS2; update to latest ECU software per service bulletin.
High-voltage connector corrosion
Symptoms: Intermittent power loss, 'High Voltage System Fault', charging errors.
Cause: Moisture ingress in high-voltage junction box due to improper sealing during service or flood exposure.
Fix: Inspect and replace high-voltage connectors and seals; apply dielectric grease per Hyundai TIS EV‑E-GMP‑006.
Research Basis

Analysis derived from Hyundai technical bulletins (2021–2025) and UK DVSA zero-emission vehicle monitoring data (2022–2025). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HYUNDAI E-GMP-MOTOR

Find answers to most commonly asked questions about HYUNDAI E-GMP-MOTOR.

Research Resources

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Last Updated: 16 August 2025

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