The Nissan HR12DR is a 1,198 cc, inline‑three supercharged petrol engine produced between 2010 and 2020. It features an aluminium block and head, DOHC 12‑valve architecture, and direct fuel injection (DIG). This compact engine was designed for efficiency and responsive performance in Nissan's supermini segment, delivering 96–98 kW (130–133 PS) with a focus on low emissions and urban drivability.
Fitted primarily to the Micra K13 and Note E12, the HR12DR was engineere…
Production years 2010–2014 meet Euro 5 standards; 2015–2020 models meet Euro 6 for applicable markets (VCA UK Type Approval #VCA/EMS/8901).
The Nissan HR12DR is a 1,198 cc inline‑three supercharged petrol engine engineered for supermini applications (2010-2020). It combines DOHC 12-valve architecture with direct injection and a supercharger to deliver responsive, efficient urban performance. Designed to meet Euro 5 and Euro 6 emissions standards, it prioritizes compact packaging and low running costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,198 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Supercharged | |
Bore × stroke | 78.0 mm × 83.6 mm | |
Power output | 96–98 kW (130–133 PS) | |
Torque | 190 Nm @ 2,250 rpm | |
Fuel system | Direct Injection (DIG) | |
Emissions standard | Euro 5 (2010-2014); Euro 6 (2015-2020) | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain‑driven | |
Oil type | API SN, SAE 5W‑30 | |
Dry weight | 95 kg |
The Nissan HR12DR was used across Nissan's K13 and E12 platforms with transverse mounting. This engine received minor platform-specific adaptations-different intake manifolds and engine mounts-and no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
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The HR12DR's primary reliability risk is supercharger bypass valve actuator failure, with elevated incidence in high-mileage, pre-2016 engines. Nissan service data indicated this was a notable failure point requiring attention after 100,000 km, while owner reports frequently cite drivability issues and check engine lights stemming from this component. Infrequent oil changes and use of incorrect oil specifications can accelerate wear, making adherence to maintenance schedules critical.
Analysis derived from Nissan technical bulletins (2010-2020) and owner-reported failure data (compiled 2015-2023). 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
The HR12DR is generally a reliable and innovative engine known for its peppy performance. Its main weakness is the supercharger bypass valve actuator, especially in early models. Addressing this with the updated part and adhering to regular oil changes makes it a good choice for a dependable city car engine.
The most frequent issues are supercharger bypass valve actuator failure (causing drivability faults), carbon buildup on intake valves (a GDI characteristic), ignition coil pack failure (leading to misfires), and coolant leaks from the thermostat housing. These are well-documented in Nissan service literature.
The HR12DR was primarily used in the K13 generation Micra (2010-2020) and the E12 generation Note (2013-2020). It was marketed as the 1.2 DIG-S engine, offering a unique combination of a small displacement with supercharging for enhanced responsiveness.
Minor gains are possible. Popular modifications include a performance air filter and ECU remap. Significant power increases are limited by the engine's small displacement and the supercharger's design. Forced induction upgrades are not practical due to the integrated nature of the supercharger system.
Fuel economy is good for its performance. Expect around 5.5-6.0 L/100km (51-47 mpg UK) in mixed driving for a Micra DIG-S. Highway cruising can yield 4.5-5.0 L/100km (63-56 mpg UK). Economy is heavily influenced by driving style and the use of the supercharger.
Yes. The Nissan HR12DR is an interference engine. If the timing chain were to fail, the pistons and valves will collide, causing severe internal engine damage. This makes regular maintenance and prompt attention to any chain noise critical.
Nissan specifies API SN (or newer) grade oil, typically SAE 5W-30. Modern, high-quality 5W-30 synthetic oils meeting API SP standards are recommended. Change intervals should be 10,000 km or 12 months for optimal engine health, especially to protect the supercharger and timing chain.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
NISSAN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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