Chery SQR484FVVT ACTECO 2.0L DOHC DVVT Naturally Aspirated Gasoline Engine

The SQR484F belongs to the ACTECO series, a 2.0L naturally aspirated gasoline engine co-developed by Chery and Austria’s AVL. It has two versions: single VVT (variable intake valve timing only) and an upgraded later DVVT (dual variable intake and exhaust valve timing). Collectively referred to as SQR484F VVT in the market, it has been mass-installed in vehicles since 2010. Targeted at family SUVs and midsize sedans, it is positioned as a durable naturally aspirated powertrain with low maintenance costs. Engine bay equipped with the 484F engine

• VVT / DVVT Variable Valve Timing The early single VVT only adjusts intake valve timing to boost low-rev torque. The updated DVVT enables dual-phase regulation of both intake and exhaust valves, balancing performance at low and high engine speeds. It improves fuel economy, reduces idle vibration, and enhances high-speed power reserve.
• Lightweight Full-Aluminum Body The cylinder block, cylinder head, oil pan and bearing caps are all made of aluminum alloy. Compared with cast iron engines, it delivers significant weight reduction and superior heat dissipation.
• Mature Multi-Point Port Injection Simple structure with low failure rates. Compatible with regular 92-octane gasoline without strict fuel requirements. It features excellent adaptability to LPG conversion, making it a popular gas-retrofitting solution for commercial vehicles.
• Dual Overhead Camshaft with 4 Valves Per Cylinder Superior gas exchange efficiency versus older 8-valve engines, delivering stronger power reserve at high cruising speeds.

• SUV Models: Tiggo 3 2.0L, all Tiggo 5 2.0L variants (primary fitted model) Vela X5, Kaiyi X5 2.0L
• Sedans / Crossover Vehicles: Eastar, Eastar Cross, Chery A5 2.0L, Riich G5 2.0 DVVT
• Transmission Matching: Manual: 5-speed manual transmission (5MT) Automatic: CVT continuously variable transmission (main fitment for Tiggo 5), older 4-speed automatic transmission (4AT)

Power Characteristics This is a typical high-revving naturally aspirated engine, delivering peak torque only at 4500rpm. Torque output is weak at low revs (1500–2500rpm), resulting in sluggish performance under full load, during hill climbing and high-speed acceleration. Manual transmission variants offer more responsive driving feel, while CVT-equipped vehicles feature noticeable lag and dull acceleration.

Fuel Consumption Levels Urban congested traffic: 11–13L/100km (higher consumption for heavier SUV bodies) Steady highway cruising: 7.5–9L/100km Vehicle running costs drop drastically after LPG conversion, a major merit of this engine.

• Simple, Robust and Long-Lasting Structure Free of turbochargers and high-pressure direct injection fuel pumps, its mechanical failure rate is far lower than contemporary turbocharged engines. Many units have covered 300,000 kilometers without major overhauls.
• Extremely Low Maintenance Costs Universal and affordable spare parts, serviceable at any local repair shop.
• Flexible Fuel Compatibility & LPG Retrofit Friendly Stable long-term operation on 92-octane gasoline; reliable natural gas conversion for taxis and work vehicles.
• Excellent Heat Dissipation from Aluminum Block Low risk of cylinder scuffing under proper regular maintenance.
• Abundant Spare Parts Supply Wide availability of used engine assemblies and brand-new short blocks in the aftermarket.