The Nissan QR20DE is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 2000 and 2013. It features an aluminum block and head, dual overhead camshafts (DOHC), and 16 valves with multi-point fuel injection and Nissan's CVTC variable valve timing. This engine was designed for a balance of performance, refinement, and fuel efficiency in Nissan's global compact and mid-size vehicles.
Fitted to models such as the T30 X-Trail, P11 Primera, and B15 Sentra, the QR20DE was engineered for responsive, smooth operation across a wide rev range. It offered a good compromise between power and economy, making it suitable for both daily commuting and light touring. Emissions compliance for its production period was met through precise electronic fuel injection and variable valve timing, allowing it to meet Euro 3 and Euro 4 standards.
One documented concern is premature failure of the intake manifold runner control (IMRC) system, which can cause drivability issues and trigger check engine lights. This issue, referenced in Nissan's Service Bulletin NTB05-089, is often linked to wear in the plastic actuator gears or vacuum diaphragms. The design saw minor revisions in 2005 to improve durability before being succeeded by the MR20DE.
Production years 2000–2004 meet Euro 3 standards; 2005–2013 models meet Euro 4 (VCA UK Type Approval data for imported models).
The Nissan QR20DE is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for compact SUVs and sedans (2000-2013). It combines a lightweight aluminum construction with DOHC valvetrain and CVTC variable timing to deliver smooth, responsive performance. Designed to meet Euro 3 and Euro 4 emissions standards, it balances everyday drivability with respectable fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 89.0 mm × 80.0 mm | |
| Power output | 103–110 kW (140–150 PS) | |
| Torque | 197–205 Nm @ 4,000 rpm | |
| Fuel system | Multi-point fuel injection with CVTC | |
| Emissions standard | Euro 3 (2000-2004); Euro 4 (2005-2013) | |
| Compression ratio | 9.9:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC | |
| Oil type | SAE 5W-30 (Synthetic or Semi-Synthetic) | |
| Dry weight | 125 kg |
The DOHC with CVTC provides a broad, flat torque curve ideal for responsive driving but requires diligent 10,000-15,000 km oil changes to maintain chain and VVT system health. Using the specified SAE 5W-30 oil is critical for optimal lubrication and hydraulic actuator function. The IMRC system requires periodic inspection; failure can cause rough idle and power loss. Spark plugs should be replaced every 60,000 km as per Nissan Service Manual SM-QR20-05. The engine is non-interference, providing a safety margin if the timing chain fails.
Oil Specs: Requires SAE 5W-30 synthetic or semi-synthetic oil (Nissan Service Manual SM-QR20-05). This viscosity ensures proper operation of the CVTC system.
Emissions: Euro 3 certification applies to 2000-2004 models; Euro 4 for 2005-2013 models (VCA Type Approval data for UK imports).
Power Ratings: Measured under JIS D 1001 standards. Output varies slightly by model application and market (Nissan Group PT-2010).
Nissan Technical Information System: Docs TB-QR20-01, SM-QR20-05
Nissan Electronic Parts Catalog (EPC): Doc. QR20DE-001
Japanese Industrial Standards: JIS D 1001 Engine Power Certification
The Nissan QR20DE was used across Nissan's T30/P11/B15 platforms with transverse mounting. This engine received platform-specific adaptations-revised intake manifolds for the X-Trail and different engine mounts for the Primera-creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the alternator (Nissan Service Manual SM-QR20-05). The 8th VIN digit typically indicates engine type ('Q' for QR20DE in many markets). Visually, it is identified by its four-cylinder configuration and the "QR20" casting on the cam cover. Critical differentiation from MR20DE: QR20DE has a wider bore (89mm vs 86mm) and different intake manifold design. Engine mounts and intake manifolds are not interchangeable between QR20DE and MR20DE.
The QR20DE's primary reliability risk is intake manifold runner control (IMRC) failure, with elevated incidence in high-mileage engines. Nissan workshop data indicates this is a frequent cause of drivability complaints and check engine lights, while owner reports often cite minor oil leaks as a secondary concern. Infrequent oil changes make adherence to the factory service schedule critical.
Analysis derived from Nissan technical bulletins (2001-2013) and aggregated owner workshop data (2000-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN QR20DE.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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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)
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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.
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