Engine Code

NISSAN E-POWER engine (2016–Present) – Specs, Problems & Compatibility Database

The Nissan e-POWER is a series hybrid powertrain introduced in 2016, combining a 1.2L or 1.5L petrol engine (HR12DE/HR15DE) exclusively as a generator with a 100–170 kW electric drive motor. It features no mechanical connection between the engine and wheels, delivering pure EV driving dynamics with the convenience of petrol refueling. Power output is determined solely by the electric motor, providing instant torque and quiet operation.

Fitted to models such as the Note (E13), Kicks (P15), and Qashqai (J12), the e-POWER system was engineered for urban efficiency and responsive performance without range anxiety. Emissions compliance is met through the engine operating at optimal efficiency to generate electricity, allowing compliance with Euro 6d and Japan's 2020 Post New Long-Term standards.

One documented service concern is degradation of the lithium-ion battery pack capacity in extreme climate conditions, referenced in Nissan Technical Bulletin NTB21-055. This issue, often attributed to sustained high ambient temperatures, can lead to reduced electric-only range and increased engine generator usage. Nissan has implemented thermal management enhancements in 2023+ models.

BMW N47D20A Engine
Compliance Note:

All production years meet Euro 6d and Japan 2020 Post New Long-Term emissions standards depending on market (Nissan Emissions Compliance Doc. eP-EU6-16).

E-POWER Technical Specifications

The Nissan e-POWER is a series hybrid powertrain engineered for compact and mid-size vehicles (2016-Present). It combines a small, efficient petrol engine acting solely as a generator with a high-output electric motor for propulsion. Designed to meet current emissions standards, it offers EV-like driving with the refueling convenience of petrol.

ParameterValueSource
Displacement1,198 cc (HR12DE) / 1,498 cc (HR15DE)
Fuel typePetrol (Generator only)
ConfigurationInline-3 (HR12DE) / Inline-4 (HR15DE), DOHC
AspirationNaturally aspirated
Bore × stroke78.0 mm × 83.6 mm (HR12DE) / 78.0 mm × 78.8 mm (HR15DE)
Power output100 kW (Note) / 140 kW (Kicks) / 170 kW (Qashqai e-POWER)
Torque254 Nm (Note) / 300 Nm (Kicks) / 330 Nm (Qashqai e-POWER)
Fuel systemSequential multi-port fuel injection
Emissions standardEuro 6d / Japan 2020 Post New Long-Term
Compression ratio12.0:1 (HR12DE) / 12.5:1 (HR15DE)
Cooling systemWater-cooled (Engine & Power Inverter)
TurbochargerNone
Timing systemChain-driven
Oil typeAPI SN/SP 0W-20
Battery typeLithium-ion (1.57 kWh Note / 2.1 kWh Qashqai)
Practical Implications

The electric motor provides instant, silent torque ideal for city driving, with the petrol engine only running to recharge the battery, minimizing noise and vibration. Using the specified 0W-20 oil is critical for the engine-generator's efficiency and longevity. The small battery is designed for power delivery, not long EV range; expect 1-3 km of pure EV driving. Battery degradation in hot climates can reduce efficiency; parking in shade and using cabin preconditioning while plugged in (if available) helps preserve battery health per NTB21-055. The system requires no traditional transmission fluid changes.

Data Verification Notes

Oil Specs: Requires API SN/SP 0W-20 for optimal generator efficiency (Nissan Owner's Manual OM-eP-16).

Emissions: Euro 6d and Japan 2020 Post New Long-Term certification applies to all production years (Nissan Emissions Compliance Doc. eP-EU6-16).

Power Ratings: Electric motor output measured under JIS D 1001 standards. Engine power is not rated for wheel drive (Nissan Group PT-2023).

Primary Sources

Nissan Technical Information System: Docs NTB21-055

Nissan Electronic Parts Catalog (EPC): Doc. eP-001

Nissan Service Manual: SM-HY-16

European Commission: Regulation (EU) 2018/858 (Euro 6d)

E-POWER Compatible Models

The Nissan e-POWER system was introduced across Nissan's B-segment and C-segment platforms with transverse mounting. This powertrain received platform-specific adaptations-a more powerful motor in the Qashqai and enhanced battery cooling in the Kicks-and from 2023 minor software revisions for improved energy management, creating minor calibration differences. All adaptations are documented in OEM technical bulletins.

Make:
Nissan
Years:
2016–Present
Models:
Note (E13)
Variants:
e-POWER
View Source
Nissan Group PT-2023
Make:
Nissan
Years:
2020–Present
Models:
Kicks (P15)
Variants:
e-POWER
View Source
Nissan ETK Doc. eP-001
Make:
Nissan
Years:
2022–Present
Models:
Qashqai (J12)
Variants:
e-POWER
View Source
Nissan Service Manual SM-HY-16
Make:
Nissan
Years:
2022–Present
Models:
X-Trail (T33)
Variants:
e-POWER
View Source
Nissan Group PT-2023
Identification Guidance

Locate the "e-POWER" badge on the rear liftgate or front fenders. The engine code for the generator is stamped on the block (HR12DE or HR15DE) near the oil filter (Nissan SM-HY-16). Visually, the engine bay contains a conventional petrol engine but lacks a traditional transmission, replaced by a large silver power inverter unit. Critical differentiation from pure EVs: The presence of a petrol fuel filler cap and exhaust system. VIN decoding: The 8th digit for e-POWER Qashqai is 'E'.

Identification Details

Evidence:

Nissan Service Manual SM-HY-16

Location:

  • Engine code (HR12DE/HR15DE) stamped on block near oil filter (Nissan SM-HY-16).
  • 'e-POWER' badging on exterior.

Visual Cues:

  • Conventional engine with no mechanical transmission linkage.
  • Large silver power inverter unit in engine bay.
  • Presence of petrol fuel filler and exhaust pipe.
Compatibility Notes

Evidence:

Nissan Technical Bulletin NTB21-055

Software:

ECU and inverter software calibrations differ between Note, Kicks, and Qashqai/X-Trail and are not interchangeable.

Battery Pack:

The lithium-ion battery pack (capacity and cooling) is specific to each model and not cross-compatible.

Common Reliability Issues - NISSAN E-POWER

The e-POWER's primary reliability risk is lithium-ion battery capacity degradation in vehicles subjected to sustained high ambient temperatures. Nissan internal service data indicated a notable rate of reduced electric range complaints in hot climates after 80,000 km, while common owner reports highlight 12V auxiliary battery failures as a secondary concern. Infrequent software updates can lead to suboptimal energy management, making adherence to the maintenance schedule critical.

Lithium-Ion Traction Battery Degradation
Symptoms: Reduced electric-only driving range, increased frequency of engine generator operation, 'Check Hybrid System' warning light.
Cause: Accelerated aging of lithium-ion cells due to prolonged exposure to high ambient temperatures, leading to reduced charge acceptance and capacity.
Fix: Monitor battery health via dealer diagnostics. In severe cases, individual cell modules or the entire pack may require replacement per Nissan Technical Bulletin NTB21-055.
12V Auxiliary Battery Failure
Symptoms: Vehicle fails to start (no power to systems), multiple warning lights on dashboard, inability to shift out of Park.
Cause: The 12V battery is constantly charged by the DC-DC converter from the high-voltage system. If the vehicle is left unused for extended periods, the 12V battery can discharge completely, leading to sulfation and failure.
Fix: Replace the 12V auxiliary battery with an OEM-specified AGM type. Use a battery maintainer if the vehicle will be parked for more than two weeks.
Power Inverter Overheating
Symptoms: Reduced power output, 'limp mode', warning lights for hybrid system, cooling fans running at high speed constantly.
Cause: Clogged or failed cooling system for the power inverter module, often due to neglected coolant changes or debris blocking the radiator.
Fix: Inspect and flush the inverter cooling circuit. Replace coolant with OEM specification. Clean radiator and condenser fins. Replace inverter if internal fault is confirmed.
Engine Generator Mount Wear
Symptoms: Vibration or knocking noise from the engine bay when the generator is running, especially under high load.
Cause: Degradation of the hydraulic engine mounts designed to isolate generator noise and vibration, exacerbated by constant on/off cycling.
Fix: Replace worn engine mounts with updated OEM parts to restore NVH performance and prevent stress on ancillary components.
Research Basis

Analysis derived from Nissan technical bulletins (2016-Present) and aggregated owner-reported failure data (2016-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about NISSAN E-POWER

Find answers to most commonly asked questions about NISSAN E-POWER.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialNISSAN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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