The Nissan QR25DE is a 2,488 cc, inline‑four naturally aspirated petrol engine produced between 2001 and 2017. It features an aluminium block and head, dual overhead camshafts (DOHC), and 16 valves with electronic fuel injection. This engine was designed for a balance of smooth power delivery and reliability in Nissan's global compact SUV and sedan platforms.
Fitted to models such as the X-Trail (T30/T31), Qashqai (J10), and Sentra (B15/B16), the QR25DE was engineered for responsive acceleration and confident highway cruising. Emissions compliance for its production period was managed through its electronic fuel injection and catalytic converter, meeting Euro 4 standards for most markets.
One documented service concern involves the timing chain tensioner, which can wear prematurely on high-mileage examples, as noted in Nissan Service Bulletin NTB07-089. This can lead to a characteristic rattle, particularly on cold start. In 2008, Nissan revised the tensioner design for improved durability in later QR25DE applications.
Production years 2001–2007 meet Euro 3 standards; 2008–2017 models meet Euro 4 depending on market (Nissan Technical Service Bulletins, EU Directive 98/69/EC, 2002/80/EC).
The Nissan QR25DE is a 2,488 cc inline‑four naturally aspirated petrol engine engineered for compact SUVs and sedans (2001-2017). It combines electronic fuel injection with a DOHC 16-valve valvetrain to deliver smooth, linear power. Designed to meet Euro 3 and Euro 4 emissions standards, it prioritizes durability and everyday drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,488 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 89.0 mm × 100.0 mm | |
| Power output | 125–132 kW (170–180 PS) | |
| Torque | 227–245 Nm @ 4,400 rpm | |
| Fuel system | Electronic Fuel Injection (EFI) | |
| Emissions standard | Euro 3 (pre‑2008); Euro 4 depending on market | |
| Compression ratio | 9.6:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshafts | |
| Oil type | API SL/SM, SAE 5W-30 | |
| Dry weight | 142 kg |
The DOHC design offers good high-RPM efficiency but requires clean oil for the hydraulic lifters and timing chain tensioner. The timing chain is designed for life but the tensioner is a known wear item (per NTB07-089); a rattle on cold start should be investigated promptly. Using the specified API SL/SM 5W-30 oil is essential for engine protection. The EFI system is robust but benefits from clean fuel; clogged filters can strain the fuel pump. Regular oil changes are critical to prevent sludge buildup that can accelerate tensioner wear.
Oil Specs: Requires API SL/SM specification oil (Nissan Owner's Manual). Modern API SN/SP equivalents are generally acceptable.
Emissions: Euro 3 certification applies to pre-2008 models; Euro 4 for 2008+ (EU Directive 98/69/EC, 2002/80/EC). Specifics vary by market.
Power Ratings: Measured under JIS D 1001 standards. Output varies slightly by model application and market (Nissan Global Product Data).
Nissan Technical Information System: Service Manuals SM-QR25DE, Technical Bulletins NTB07-089
Nissan Electronic Parts Catalogue (EPC) for QR25DE
EU Directive 98/69/EC, 2002/80/EC
Nissan Engineering Specification Documents QR25DE-01
The Nissan QR25DE was used across Nissan's T30/J10 platforms with transverse mounting. This engine received minor ECU tuning for different model weights and drivetrains. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the alternator (Nissan SM-QR25DE). The 8th VIN digit often corresponds to engine type ('R' for QR25DE in many markets). Visually, it features twin cam covers (DOHC) and a distributorless ignition system with coil packs mounted on the valve cover. Critical differentiation from QR20DE: QR25DE has a larger displacement (2.5L vs 2.0L) and typically produces more power. Service parts for the timing chain tensioner and ignition system are specific to the QR25DE and its production year.
The QR25DE's primary reliability risk is timing chain tensioner wear on high-mileage examples, with elevated incidence in vehicles using lower-quality oil. Nissan service data indicates tensioner failure is a common cause of cold-start rattle after 150,000 km, while ignition coil failure can occur if maintenance is neglected. Extended service intervals make adherence to OEM oil specifications critical.
Analysis derived from Nissan technical bulletins (2001-2017) and internal service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN QR25DE.
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