Overview & Design Features
The Chery SQRD4T20 is a prominent 2.0-liter turbocharged gasoline direct injection (TGDI) inline-four engine developed by Chery Automobile Co., Ltd.’s Acteco division. Introduced as a flagship powertrain, this engine represents Chery’s commitment to advanced internal combustion technology, combining high performance with improved fuel efficiency. Its development reflects modern automotive trends towards forced induction and precise fuel management, aiming to deliver robust power output suitable for larger SUVs and sedans within the Chery and Exeed lineups.
Engineered for efficiency and power, the SQRD4T20 features a lightweight aluminum alloy cylinder block and cylinder head, contributing to overall vehicle weight reduction and enhanced thermal management. It employs a sophisticated TGDI system, which injects fuel directly into the combustion chamber at high pressure, ensuring precise fuel atomization and improved combustion efficiency. Further enhancing its performance and emissions control is the dual variable valve timing (DVVT) system on both intake and exhaust camshafts, optimizing valve overlap and lift across the engine’s operating range. An electronically controlled wastegate for the turbocharger allows for more precise boost management, contributing to both responsiveness and efficiency.
This powerful 2.0L TGDI engine has been widely deployed across several of Chery’s and its premium sub-brand Exeed’s key models. Primary vehicle applications include the Chery Tiggo 8 Pro and Tiggo 8 Pro Max, typically found in higher trim levels. It also powers various models within the Exeed portfolio, such as the Exeed TXL, Exeed LX, and the flagship Exeed VX, particularly in regions where these models are marketed for their premium performance and features. Production years for models featuring the SQRD4T20 generally span from the late 2010s to the present day.
Technical Specifications
| Displacement | 1998 cc |
| Max Power | 250-261 hp (186-195 kW) @ 5500 RPM |
| Max Torque | 390-400 Nm @ 1750-4000 RPM |
| Fuel Type | Unleaded Gasoline (92 RON minimum, 95 RON recommended) |
| Fuel Consumption (combined) | 7.9-8.5 l/100 km (vehicle dependent) |
| Engine Type | Inline-4, Turbocharged Gasoline Direct Injection (TGDI) |
| Compression Ratio | 10.0:1 |
| Cylinder Bore | 83.5 mm |
| Piston Stroke | 90.7 mm |
| Valvetrain | DOHC, 16-valve, DVVT |
| Valves per Cylinder | 4 |
| Additional Info | Aluminum alloy block and head, electronically controlled wastegate, third-generation i-HEC combustion system. |
Common Problems & Reliability
- Carbon Buildup on Intake Valves: As with many direct injection engines lacking port fuel injection, carbon deposits can accumulate on the intake valves over time. This can lead to reduced airflow, decreased performance, and potential misfires. Regular use of top-tier fuels and occasional intake valve cleaning (walnut blasting) may be required at higher mileages.
- Oil Dilution: The nature of gasoline direct injection can lead to fuel diluting the engine oil, particularly during short trips or in colder climates. While modern oils are formulated to mitigate this, consistent short-distance driving without the engine reaching full operating temperature can accelerate oil degradation, potentially affecting lubrication and leading to premature wear.
- Turbocharger Longevity: The turbocharger unit is a critical component for the engine’s performance. Its long-term reliability is heavily dependent on proper maintenance, particularly consistent oil changes with specified lubricants. Neglecting oil quality or extending oil change intervals can lead to premature wear or failure of the turbocharger bearings.
- Under proper care and adherence to manufacturer-recommended service schedules, the Chery SQRD4T20 engine is realistically expected to deliver a service life exceeding 200,000 to 250,000 kilometers before requiring a major overhaul.
Maintenance Tips & Service Schedule
- Engine Oil and Filter: Perform oil and filter changes every 7,500 to 10,000 kilometers or every 6-12 months, whichever comes first. Use a fully synthetic engine oil conforming to API SN/SP or ACEA C3 standards, with a viscosity grade such as 5W-30 or 0W-20, as specified in the vehicle’s owner’s manual. Consistent oil quality is crucial for turbocharger health.
- Spark Plugs: Replace iridium-tipped spark plugs every 30,000 to 40,000 kilometers. Incorrect spark plug gaps or worn electrodes can lead to reduced fuel efficiency and engine performance.
- Air Filter: Inspect and replace the engine air filter every 15,000 to 20,000 kilometers, or more frequently if operating in dusty conditions, to ensure optimal airflow and prevent contaminants from entering the engine.
- Coolant Flush: The engine coolant should be flushed and replaced every 5 years or 100,000 kilometers using a manufacturer-approved long-life coolant. This maintains cooling system efficiency and prevents corrosion.
- Timing Chain Inspection: The timing chain system is generally designed for the life of the engine. However, it is advisable to have it inspected for wear or stretching at high mileages, typically above 150,000 kilometers, during routine maintenance.
- Fuel System Maintenance: Periodically use a high-quality fuel system cleaner designed for direct injection engines to help mitigate carbon buildup on intake valves and keep fuel injectors clean.
Conclusion
The Chery SQRD4T20 engine stands as a competitive and robust offering in the modern automotive landscape, providing a compelling balance of power, efficiency, and refinement. Its advanced features, including TGDI and DVVT, contribute to a strong driving experience. For a used vehicle buyer, it represents a generally reliable choice, provided the vehicle has a documented history of consistent and proper maintenance. Adherence to the specified service intervals, particularly regarding oil changes and the use of quality lubricants, is paramount for the long-term health of its direct injection system and turbocharger. With diligent care, this engine offers a dependable and capable powertrain.