Overview & Design Features
The Chery CAC-SQR472FB is an inline-four, naturally aspirated gasoline engine developed and manufactured by Chery Automobile Co. Ltd. Primarily designed for compact urban vehicles, this engine boasts a displacement of 1083 cubic centimeters (1.1 liters), representing a core powertrain offering for Chery’s entry-level models. Its historical significance lies in its role as a fundamental and widely deployed engine within the brand’s early expansion into various global markets, particularly in developing economies where fuel efficiency and low cost of ownership are paramount.
Engineering features of the SQR472FB include an aluminum alloy cylinder head paired with a cast iron cylinder block, a common combination for balancing weight reduction with durability. Fuel delivery is managed by a multi-point electronic fuel injection (MPI) system, optimizing fuel-air mixture for combustion efficiency. The valvetrain utilizes a Double Overhead Camshaft (DOHC) configuration with 16 valves (four per cylinder), which facilitates efficient gas flow for improved power output and responsiveness across the RPM range, a notable feature for its displacement class.
The Chery CAC-SQR472FB engine was extensively deployed across several Chery vehicle models, primarily targeting the A-segment and B-segment compact car markets. Key applications include the Chery QQ3 (often known simply as Chery QQ) from its early production years (approximately 2003-2015), where it served as one of the primary engine options. It also powered certain variants of the Chery A1 and was occasionally seen in export versions of other compact Chery offerings. Its widespread use in the QQ platform underscored its importance as a workhorse engine for the brand’s best-selling mini-car.
Technical Specifications
| Displacement | 1083 cc |
| Max Power | 67 hp (50 kW) @ 6000 RPM |
| Max Torque | 90 Nm (9.2 kg*m) @ 3500-4500 RPM |
| Fuel Type | Gasoline (Petrol) |
| Fuel Consumption (Combined) | Approx. 6.0 l/100 km |
| Engine Type | Inline-4, Naturally Aspirated, DOHC |
| Compression Ratio | 9.8:1 |
| Cylinder Bore | 72 mm |
| Piston Stroke | 66.5 mm |
| Valvetrain | DOHC (Double Overhead Camshaft) |
| Valves per Cylinder | 4 |
| Additional Info | Multi-Point Injection (MPI) |
Common Problems & Reliability
The Chery CAC-SQR472FB engine, while generally robust for its class, exhibits a few common issues that prospective owners should be aware of. A prevalent mechanical weak point often observed involves 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. Another recurring concern relates to the ignition system, with spark plugs and ignition coils sometimes requiring earlier replacement than anticipated, leading to misfires and rough idling. Furthermore, the timing belt system, rather than a chain, necessitates regular replacement. Neglecting this critical service can result in catastrophic engine failure due to valve-piston collision.
Under proper and consistent maintenance, including adherence to recommended service schedules and prompt addressing of minor issues, the Chery CAC-SQR472FB engine typically demonstrates a realistic service life of approximately 180,000 to 220,000 kilometers before requiring a major overhaul. Exceeding this mileage without significant repairs often indicates exceptional care or may precede the onset of more extensive mechanical wear.
Maintenance Tips & Service Schedule
Proactive maintenance is crucial for maximizing the longevity and reliability of the Chery CAC-SQR472FB engine. Regular oil changes are paramount; it is recommended to use a high-quality 5W-30 or 5W-40 synthetic or semi-synthetic engine oil every 7,500 to 10,000 kilometers, or annually, whichever comes first, especially in varying climatic conditions. Spark plugs should be inspected and typically replaced every 30,000 to 40,000 kilometers to ensure efficient combustion and prevent misfires.
The timing belt, being a critical wear item, demands strict adherence to its replacement schedule, which is generally advised every 60,000 to 80,000 kilometers or every 4-5 years. When replacing the timing belt, it is highly recommended to also replace the tensioner and idler pulleys, along with the water pump, as these components share similar service lives and can cause significant damage if they fail prematurely. Coolant flushes should occur every 2 years or 40,000 kilometers to maintain optimal engine temperature regulation and prevent corrosion. Regular checks of the air filter, fuel filter, and engine accessory belts also contribute significantly to the engine’s overall health and efficiency.
Conclusion
For a used vehicle buyer, the Chery CAC-SQR472FB engine represents a generally reliable and straightforward choice, particularly for those prioritizing low running costs and simplicity in a compact car. Its proven track record in high-volume models like the Chery QQ demonstrates its capability as a utilitarian powertrain. While it does have identifiable common issues, these are largely manageable with diligent adherence to maintenance schedules and proactive addressing of known wear points. When considering a used vehicle equipped with this engine, a thorough pre-purchase inspection that specifically checks for oil leaks and verifies timing belt service history is strongly advised to ensure a safe and dependable ownership experience.