Overview & Design Features
The Chery SQR484F is an inline four-cylinder gasoline engine developed by the Chinese automaker Chery Automobile. Primarily designed for the compact and sub-compact vehicle segments, this engine family represents a significant effort by Chery to produce competitive powertrains for its growing vehicle lineup. With a displacement of 1.8 liters (1797 cc), the SQR484F was engineered to balance power delivery with fuel efficiency, catering to the demands of daily driving in various international markets.
Engineered with a focus on modern performance characteristics, the SQR484F features a lightweight aluminum alloy cylinder block and cylinder head, contributing to overall vehicle weight reduction and improved heat dissipation. It incorporates a Double OverHead Camshaft (DOHC) valvetrain system paired with Variable Valve Timing (VVT) technology, optimizing valve overlap and lift for enhanced torque across the RPM range and better fuel economy. Fuel delivery is managed by a multi-point fuel injection (MPI) system, ensuring precise fuel atomization and combustion efficiency.
This engine saw widespread deployment across several Chery models. It was notably utilized in the Chery Tiggo 3 (also known as Chery Tiggo FL) from approximately 2014 onwards, serving as a primary powertrain option. The SQR484F also powered various iterations of the Chery A5, a compact sedan, during its production run, and found application in earlier models such as the Chery Eastar and Chery Fulwin 2 in certain markets. Its versatility allowed Chery to integrate it into multiple platforms requiring a reliable 1.8-liter engine.
Technical Specifications
| Displacement | 1797 cc (1.8 L) |
| Max Power | 132 hp (97 kW) @ 5750 RPM |
| Max Torque | 170 Nm @ 4300-4500 RPM |
| Fuel Type | Unleaded Gasoline (Minimum 92 RON) |
| Fuel Consumption (l/100 km) | Refer to specific vehicle model documentation |
| Engine Type | Inline 4-cylinder, DOHC |
| Compression Ratio | 10.5:1 |
| Cylinder Bore (mm) | 81 mm |
| Piston Stroke (mm) | 87.5 mm |
| Valvetrain | DOHC with VVT |
| Valves per Cylinder | 4 |
| Additional Info | Aluminum block and head, Multi-Point Injection (MPI) |
Common Problems & Reliability
The Chery SQR484F engine, while generally robust, exhibits a few common issues that owners and technicians have noted. One frequent concern involves premature failure of the ignition coil packs, leading to misfires, rough idling, and reduced engine performance. This issue often presents itself with diagnostic trouble codes related to specific cylinder misfires. Another common point of failure is associated with oil leaks, particularly from the valve cover gasket and the oil pan gasket. These leaks, if left unaddressed, can lead to decreased oil levels and potential long-term engine damage.
VVT actuator malfunctions can also occur, resulting in erratic engine behavior, diminished power, and increased fuel consumption. Diagnosis often involves checking for VVT-related fault codes. While the SQR484F utilizes a timing chain system, which is generally designed for the engine’s lifespan, there have been occasional reports of timing chain stretch at higher mileages, manifesting as rattling noises from the front of the engine, particularly on cold starts. With diligent maintenance, the SQR484F typically demonstrates a realistic expected service life of 200,000 to 250,000 kilometers before requiring a major overhaul.
Maintenance Tips & Service Schedule
Proper maintenance is crucial for extending the service life and ensuring the reliable operation of the Chery SQR484F engine. Adherence to manufacturer-recommended service intervals is paramount. Engine oil and filter changes should be performed every 8,000 to 10,000 kilometers or every 6 months, whichever comes first. The use of a high-quality synthetic blend or full synthetic oil with a viscosity rating of 5W-30 or 5W-40, conforming to API SN or equivalent standards, is recommended.
Spark plugs require inspection and replacement every 40,000 to 60,000 kilometers, depending on their type and condition, to maintain optimal combustion. The timing chain system should be inspected for excessive noise or stretch at around 100,000 kilometers, with replacement generally considered between 150,000 and 200,000 kilometers if wear is detected. Coolant flushes and replacements are advisable every 2-3 years or 60,000 kilometers to prevent corrosion and maintain cooling system efficiency. Regular checks of air filter, fuel filter, and drive belt condition contribute significantly to the engine’s long-term health and performance.
Conclusion
The Chery SQR484F engine represents a generally dependable powertrain choice within Chery’s vehicle lineup. Its aluminum construction, DOHC valvetrain, and VVT technology position it as a modern and capable engine for its class. While minor issues like ignition coil failures, oil leaks, and occasional VVT actuator problems have been noted, these are often manageable with timely diagnosis and repair. For a used vehicle buyer, an SQR484F-equipped car can be a safe and reliable choice, provided there is a verifiable history of consistent and proper maintenance. Pre-purchase inspections by a qualified mechanic are always recommended to assess the engine’s current condition and address any potential issues proactively, ensuring continued reliable operation.