Overview & Design Features
The Chery SQR4732F is a naturally aspirated 1.3-liter (1297 cc) inline-four gasoline engine, developed and manufactured by Chery Automobile Co. Ltd. This powerplant served as a foundational offering within Chery’s compact vehicle lineup, particularly in emerging markets, from the early 2000s. Engineered with an emphasis on simplicity, cost-effectiveness, and ease of maintenance, the SQR4732F was designed to deliver reliable performance for urban driving and everyday utility, underpinning Chery’s strategy for accessible and economical transportation solutions.
At its core, the SQR4732F features a robust cast iron cylinder block, chosen for its durability and heat dissipation properties, paired with an aluminum alloy cylinder head to reduce overall engine weight. The valvetrain consists of a Double Overhead Camshaft (DOHC) system operating 16 valves (four per cylinder), which facilitates efficient air intake and exhaust gas scavenging without the complexity of variable valve timing technologies. Fuel delivery is managed by a multi-point electronic fuel injection (MPI) system, ensuring precise fuel-air mixture control for consistent combustion and reasonable fuel economy.
The Chery SQR4732F engine was widely deployed across several of the manufacturer’s entry-level compact models. Its primary applications include the Chery QQ3 (often referred to simply as the Chery QQ) from its inception in the early 2000s through various generations, the Chery A1, and the Riich M1. It also found its way into select export versions of other compact Chery vehicles, serving as a staple powerplant for budget-conscious buyers seeking practical urban mobility.
Technical Specifications
| Displacement | 1297 cc |
| Max Power | 68 hp (50 kW) @ 6000 RPM |
| Max Torque | 93 Nm (9.5 kg*m) @ 3500-4500 RPM |
| Fuel Type | Unleaded Gasoline (RON 92+) |
| Fuel Consumption (Combined) | 5.8 l/100 km (approx.) |
| Engine Type | Inline 4-cylinder, DOHC |
| Compression Ratio | 10.5:1 |
| Cylinder Bore | 73 mm |
| Piston Stroke | 77.5 mm |
| Valvetrain | DOHC 16-valve |
| Valves per Cylinder | 4 |
| Additional Info | Multi-point Electronic Fuel Injection (MPI), Timing Belt Driven |
Common Problems & Reliability
The Chery SQR4732F engine, while generally reliable due to its straightforward design, exhibits a few recurring issues that prospective owners should be aware of. First, the ignition system components, including spark plugs, ignition coils, and high-tension leads, can be prone to premature wear or failure. This often manifests as misfires, rough idling, reduced power, and increased fuel consumption. Using quality replacement parts is crucial for mitigating this issue.
Second, oil leaks are a common occurrence, particularly in higher mileage examples. These typically originate from the valve cover gasket, crankshaft seals (front and rear), and the oil pan gasket. While often minor, unattended leaks can lead to significant oil loss over time and potential damage. Regular inspection and timely gasket replacement are recommended.
Third, the cooling system warrants close attention. Over time, radiator hoses can degrade, the radiator itself may develop leaks, and the water pump can become inefficient or fail. Neglecting cooling system maintenance can lead to overheating, which poses a severe risk of cylinder head damage. An expected service life for a well-maintained SQR4732F engine typically ranges from 150,000 to 200,000 kilometers (approximately 90,000-125,000 miles) before major components may require an overhaul or significant repair.
Maintenance Tips & Service Schedule
- Engine Oil and Filter: Replacement is advised every 5,000 to 7,500 kilometers (3,000-4,500 miles) or every six months, whichever comes first. Recommended oil viscosity is 5W-30 or 10W-40, adhering to API SN/CF standards or higher. Regular oil changes are paramount for engine longevity due to the engine’s conventional design.
- Spark Plugs: Inspection and replacement should occur every 30,000 to 40,000 kilometers (18,000-25,000 miles). Using OEM-specified platinum or iridium spark plugs helps maintain ignition efficiency and fuel economy.
- Timing Belt: As the SQR4732F utilizes a timing belt, critical replacement, along with the tensioner and idler pulleys, is recommended every 60,000 to 80,000 kilometers (37,000-50,000 miles) or every five years. It is highly advisable to replace the water pump simultaneously, as it is often driven by the timing belt and labor costs are significantly reduced when performed concurrently.
- Coolant Flush: A complete coolant flush and refill with an ethylene glycol-based coolant is recommended every 2 years or 40,000 kilometers (25,000 miles) to prevent corrosion and maintain optimal cooling efficiency.
- Air and Fuel Filters: The air filter should be inspected at every service and replaced as needed, typically every 15,000-20,000 kilometers. The fuel filter replacement interval is generally 30,000-40,000 kilometers to ensure clean fuel delivery and protect the fuel injection system.
Conclusion
The Chery SQR4732F engine stands as a testament to straightforward automotive engineering, prioritizing affordability and functional reliability over cutting-edge technology. For a used vehicle buyer, it represents a potentially safe and economical choice, particularly in its primary applications such as the Chery QQ3. Its inherent simplicity translates to lower maintenance costs and relatively easy repairs for common issues. However, the engine’s long-term reliability is heavily dependent on a rigorous and consistent maintenance history, especially concerning timing belt changes and attention to the cooling system. A thorough pre-purchase inspection by a qualified mechanic is always advised to ascertain the engine’s current condition and verify adherence to critical service schedules, ensuring the engine continues to be a dependable workhorse for many more kilometers.