Overview & Design Features
The Jetour SQRE4T15B is a prominent turbocharged inline-four gasoline engine developed by Chery Automobile, the parent company of the Jetour brand. With a displacement of 1498 cubic centimeters (1.5L), this powerplant represents a core offering in Jetour’s lineup, balancing performance with fuel efficiency for its target market of compact and mid-size SUVs. Its introduction marked a significant step in providing modern, forced-induction options across a range of accessible vehicles, emphasizing contemporary powertrain technology. The SQRE4T15B plays a crucial role in the brand’s strategy to deliver competitive and robust vehicle performance.
Engineered for contemporary driving demands, the SQRE4T15B features an aluminum alloy cylinder head paired with a cast iron cylinder block, a common combination chosen for its balance of weight reduction and structural rigidity. Fuel delivery is managed by an advanced Turbocharged Gasoline Direct Injection (TGDI) system, which precisely injects fuel directly into the combustion chambers, optimizing efficiency and power output. The valvetrain incorporates Dual Variable Valve Timing (DVVT) on both intake and exhaust camshafts, allowing for dynamic adjustment of valve overlap and lift, enhancing combustion efficiency across varying engine speeds and loads, contributing to improved torque delivery and reduced emissions.
This versatile engine has been widely adopted across several popular Jetour vehicle models since its introduction. Primary applications include the Jetour X70 and its derivatives such as the X70 Plus and X70 Pro, serving as a foundational engine choice for these mid-size SUVs. Additionally, the SQRE4T15B powers specific trims of the larger Jetour X90 and X90 Plus, and more recently, the stylish Jetour Dashing. Its deployment across these models, typically from production years spanning approximately 2018 to the present, underscores its significance as a reliable and performant option within the brand’s portfolio.
Technical Specifications
| Specification | Value |
|---|---|
| Displacement (cc) | 1498 |
| Max Power (hp (kW) @ RPM) | 156 (115) @ 5500 |
| Max Torque (Nm (kg*m) @ RPM) | 230 (23.5) @ 1750-4000 |
| Fuel Type | Unleaded Gasoline (92 RON Minimum, 95 RON Recommended) |
| Fuel Consumption (l/100 km) | Approximately 7.5-8.5 (Combined Cycle, Varies by Vehicle) |
| Engine Type | Inline 4-cylinder, Turbocharged Gasoline Direct Injection (TGDI) |
| Compression Ratio | 9.5:1 |
| Cylinder Bore (mm) | 77.0 |
| Piston Stroke (mm) | 80.5 |
| Valvetrain | DOHC (Dual Overhead Camshaft), Dual VVT |
| Valves per Cylinder | 4 (16 Total) |
| Additional Info | Multi-point injection (MPI) variants may exist in older models; this specification primarily refers to the TGDI version. |
Common Problems & Reliability
- Carbon Buildup: As a direct injection (TGDI) engine, the SQRE4T15B can be susceptible to carbon deposits on the intake valves over prolonged periods. This occurs because fuel does not wash over the valves, leading to unburnt oil vapors and exhaust gas recirculation (EGR) deposits accumulating. Symptoms include rough idle, reduced performance, and decreased fuel efficiency. Regular use of top-tier fuels and occasional intake system cleaning can mitigate this.
- Turbocharger Longevity: While generally robust, the turbocharger unit, like any forced-induction component, is a high-stress part. Potential issues at higher mileages may include wastegate actuator malfunction, bearing wear, or oil seal degradation, leading to reduced boost pressure, unusual noises, or increased oil consumption. Proper turbocharger cool-down procedures and timely oil changes are critical for its lifespan.
- Ignition System Components: Spark plugs and ignition coils are common wear items. Failures can manifest as misfires, rough running, and illumination of the check engine light. While not unique to this engine, using OEM or high-quality aftermarket parts and adhering to replacement intervals is important for optimal engine health.
Under diligent maintenance and responsible driving, the Jetour SQRE4T15B engine is expected to provide a service life of approximately 200,000 to 250,000 kilometers before requiring major component overhauls.
Maintenance Tips & Service Schedule
- Engine Oil & Filter: Regular oil changes are paramount for turbocharged direct injection engines. It is recommended to use fully synthetic engine oil conforming to API SN/SP or ACEA C3 standards, with a viscosity such as 5W-30 or 5W-40, depending on climate and manufacturer guidelines. The service interval should be every 7,500 to 10,000 kilometers or every 6-12 months, whichever comes first.
- Spark Plugs: High-quality iridium or platinum spark plugs are specified. Replacement is typically advised every 40,000 to 60,000 kilometers to ensure efficient combustion and prevent misfires, which can stress ignition coils and the catalytic converter.
- Air Filter: Inspect the engine air filter at every service and replace it every 20,000 to 30,000 kilometers, or more frequently if operating in dusty conditions, to ensure proper airflow and protect internal engine components.
- Fuel Filter: The fuel filter is often integrated within the fuel pump module in the tank and may be considered a “lifetime” component, but regular inspection and replacement, if accessible, is recommended around 80,000 to 100,000 kilometers.
- Coolant Flush: The engine cooling system should be flushed and refilled with the manufacturer-specified long-life coolant every 60,000 to 80,000 kilometers or every 3-4 years to prevent corrosion and maintain optimal operating temperatures.
- Timing Chain: The SQRE4T15B utilizes a timing chain system, which is generally designed to last the life of the engine. However, periodic inspection for noise or tensioner wear is advisable, especially beyond 150,000 kilometers. Replacement is typically only necessary if symptoms of wear or stretching are evident.
Conclusion
The Jetour SQRE4T15B engine represents a modern and capable powertrain for its class, offering a respectable balance of power and efficiency. Its direct injection and variable valve timing technologies contribute to its performance credentials. For a used vehicle buyer, careful consideration of the service history is crucial, particularly regarding oil change intervals and the quality of consumables used. With a documented history of proper maintenance, the SQRE4T15B engine can be considered a reasonably safe and reliable choice, capable of providing many kilometers of dependable service.