Chery SQRE4T15 (1st-Generation ACTECO 1.5T MPI Turbocharged Engine, China National V Base Version)

I. Meaning of

Model Designation SQR: Factory prefix for all Chery engines E: 2nd-generation turbocharged MPI engine series 4: Inline four-cylinder layout T: Turbocharged 15: 1.5-liter displacement Distinction of Derivative Models on the Same Platform SQRE4T15: Original base 1.5T, China National V emission standard, low-power tune 205 N·m SQRE4T15B: Mid-term optimized version, VIS intake system removed for improved thermal efficiency, available in two calibrations (210 N·m / 230 N·m) SQRE4T15C: China National VI upgraded variant with optimized turbocharger and cooling system, peak torque 230 N·m delivered at earlier RPM range

II. Basic Hardware Specifications

Displacement: 1498 mL, 1.5T inline four-cylinder, DOHC 16-valve Bore × Stroke: 77 mm × 80.8 mm Compression Ratio: 9.5:1 Valve Train: Dual intake & exhaust DVVT variable valve timing, originally equipped with VIS variable intake manifold on early units Engine Construction: Cast iron cylinder block + aluminum cylinder head; cast iron block delivers high temperature resistance and superior load tolerance for turbo operation Timing System: Silent timing chain (maintenance-free; only regular premium oil changes required) Engine Oil Capacity: Approx. 3.7 L Net Engine Weight: 142 kg Emission Standard: China National V Fuel Requirement: 92# or higher octane gasoline is acceptable

III. Core Power Calibration Parameters (SQRE4T15 Base Version)

Rated Maximum Power: 112 kW / 152 hp @ 5500 rpm Peak Torque: 205 N·m @ 4000 rpm Specific Power: 74.8 kW/L Minimum Fuel Consumption Rate: 272 g/kW·h Thermal Efficiency: 36.2% Fuel Consumption Reference WLTC Combined Fuel Consumption: 7.2–7.9 L/100km Constant-speed Fuel Consumption at 60 km/h: 5.3 L/100km Congested Urban Combined Fuel Consumption: 8.5–9.5 L/100km

IV. Core Technical Highlights

2nd-generation turbocharged powertrain co-developed with AVL; cast iron cylinder block delivers outstanding durability under sustained full load and climbing conditions Dual DVVT variable valve timing paired with VIS variable intake manifold balances low-speed torque and high-speed power output Multi-point port injection results in almost no carbon buildup inside intake ports, cutting maintenance costs compared with direct-injection engines Water-cooled turbocharger resists overheating during prolonged high-load operation and reduces turbo degradation risks Silent timing chain eliminates periodic timing kit replacement and costs associated with timing belt service Integrated Exhaust Manifold (IEM) enables fast warm-up during cold starts, lowering cold-engine fuel consumption and emissions

V. Core Differences vs. Upgraded SQRE4T15B

SQRE4T15 (Original Base Version)

SQRE4T15B (Mid-term Optimized Version)

Intake System Equipped with VIS variable intake manifold VIS removed; simplified structure to lower failure rates Peak Torque 205 N·m @ 4000 rpm 210 / 230 N·m @ 2000–4000 rpm Thermal Efficiency 36.2% 37.1% Emission Standard China National V Switchable between China National V / VI Turbo Calibration Noticeable turbo lag Optimized wastegate logic for faster low-RPM response Production Years Early 2016 Tiggo 7 models Full model range replacement after 2017

VI. Vehicle Models Equipped (SQRE4T15 Original Variant Only)

Chery SUVs Early 2016 Tiggo 7 1.5T (Manual / Dual-Clutch Transmission) Chery Sedans Early Arrizo 5 1.5T Manual Variant Matching Transmissions 6-speed manual transmission, 6-speed dry-type DCT

VII. Maintenance & Vehicle Operation Precautions

Engine Oil Specification: 5W-30 full-synthetic oil recommended; semi-synthetic oil as minimum standard. Long-term use of mineral oil is not advised. Maintenance Interval: 7,500 km or 12 months (whichever comes first); initial maintenance at 5,000 km Turbo Operation Tip: Let the engine idle for 30 seconds before shutting down after intense driving to protect turbo bearings Consumable Replacement Cycle: Spark plugs replaced every 40,000 km; throttle valve cleaned every 20,000–30,000 km Driving Characteristics: Peak torque occurs at relatively high RPM; obvious turbo lag below 2000 rpm results in sluggish low-speed performance in urban traffic Translation Standard Notes Industry abbreviations: MPI, DVVT, VIS, DOHC, DCT, IEM retain universal automotive engineering abbreviations Vehicle names: Tiggo, Arrizo adopt Chery official English naming Emission standards: China National V / VI follow standard international automotive translation Units: kW, hp, N·m, rpm, L/100km, mm, kg use unified international metric symbols