SQRE4T15C Engine

SQRE4T15C (1.5 Turbo) Experiences, Issues, Fuel Consumption and Maintenance

Introduction and Applications

The engine with the code SQRE4T15C is one of the most important powerplants of the Chinese giant Chery and is part of their well-known ACTECO engine family. Developed in cooperation with top engineering companies (such as AVL from Austria), this engine was designed to offer a balance between durability and efficiency. Specifically, the 147 hp and 210 Nm variant is known for its thermal efficiency of up to 37.1%, which is an excellent result for a turbo petrol engine of this generation.

You will most often find it under the bonnet of popular SUV models such as the Chery Tiggo 7 Pro and Chery Tiggo 8. This engine also serves as a base for hybrid (DHT/PHEV) systems, where it works in tandem with electric motors. Unlike the newer 1.6 TGDI engines, this 1.5T often relies on proven technology that is easier for mechanics to maintain.

Technical Specifications

Characteristic	Value
Engine displacement	1498 cc (1.5 L)
Power	108 kW (147 hp)
Torque	210 Nm at 1750-4000 rpm
Engine code	SQRE4T15C
Fuel injection system	MPI (Multi-Point Injection) - Indirect
Induction	Turbocharger (Honeywell) + Intercooler
Number of cylinders / valves	4 / 16
Engine block	Cast iron (high durability)

Reliability and Maintenance

Timing system

This engine uses a timing chain for valve actuation. Chery (and its partners) designed this system to last for the “lifetime of the vehicle”, which in practice means it does not require regular replacement like a timing belt. However, it is recommended to check the chain and tensioner at around 200,000 km or if you hear a characteristic rattling noise during a cold start. The chain is robust and rarely snaps, provided that the oil is changed regularly.

Most common failures

Although the engine is mechanically very robust (the cast-iron block can withstand high loads), problems are mostly peripheral:

• Sensors and electronics: Occasional issues with fuel pressure sensors or camshaft sensors can trigger the “Check Engine” light.
• Cooling system: The thermostat housing and some plastic hoses can become brittle after several years of use, leading to coolant leaks.
• Carbon buildup (less pronounced): Since this is an MPI engine, the valves are “washed” by fuel, so you don’t get carbon deposits on the intake valves like with direct injection (GDI), but the EGR valve can still get dirty.

Service intervals and Oil

Minor service: Although the manufacturer specifies longer intervals in some markets, for longevity it is recommended to change the oil and filters every 10,000 km to a maximum of 15,000 km or once a year.

Oil: The engine takes approximately 4.5 to 4.7 liters of oil (always check with the dipstick). Full synthetic oil of grade 5W-30 or 5W-40 with API SN/SP specification is recommended. High-quality oil is crucial because of the turbocharger.

Oil consumption: This engine is not known as an “oil burner”. Normal consumption is negligible between services. If it uses more than 0.5 liters per 10,000 km, the turbocharger seals or the PCV valve (crankcase ventilation valve) should be checked.

Spark plugs: Since this is a turbocharged petrol engine, the spark plugs are exposed to higher thermal loads. It is recommended to replace them every 30,000 to 40,000 km. Use only iridium or platinum spark plugs recommended by the manufacturer.

Note for diesels: This is a petrol-only engine, so there is no need to worry about high-pressure injectors typical of diesel engines.

Specific Components (Costs and Systems)

Dual-mass flywheel

Yes, models equipped with a DCT (Dual Clutch Transmission) usually have a dual-mass flywheel to reduce engine vibrations transmitted to the gearbox and cabin. Its lifespan depends on driving style – stop-and-go city driving wears it out faster. Replacement is expensive (varies by market), but it usually lasts over 150,000 km if driven carefully.

Fuel injection system and Turbo

Injection: As mentioned, the 147 hp SQRE4T15C version mostly uses MPI indirect injection. The injectors are simple, inexpensive and very rarely cause problems. They are not as sensitive to fuel quality as piezo injectors used in direct injection systems.

Turbocharger: A turbo from the renowned manufacturer Honeywell is used. It is a low-inertia turbocharger that spools up quickly. Its lifespan is closely linked to regular oil changes and proper cooldown after spirited driving. With correct maintenance, you can expect it to last as long as the engine.

Emissions systems (DPF/GPF/EGR/AdBlue)

GPF (OPF): For the European market and compliance with newer standards, this engine is equipped with a GPF (gasoline particulate filter). Unlike diesel DPFs, GPFs regenerate much more easily and passively during driving because petrol exhaust gases are hotter. Clogging issues are rare.

EGR: It has an EGR valve, but on petrol engines it is much less likely to clog to the point of causing engine blockage.

AdBlue: This engine does not have an AdBlue system because it is petrol-powered. That’s one less cost and concern compared to modern diesels.

Fuel Consumption and Performance

Real-world fuel consumption

We need to be realistic – this is a small engine (1.5L) in a large and heavy body (the Tiggo 8 weighs almost 1.6 tons empty).

• City driving: Expect consumption between 10 and 12 l/100km. In heavy traffic and winter conditions, this can go up to 13 liters. Hybrid (PHEV) versions drastically reduce consumption here as long as there is charge in the battery.
• Country roads: This is where the engine is most efficient, with consumption dropping to around 7 - 8 l/100km.
• Motorway (130 km/h): Due to SUV aerodynamics, consumption is around 8.5 - 9.5 l/100km.

Is the engine “lazy”?

With 210 Nm of torque, the engine is adequate for normal driving, but you should not expect sports performance. In the city it feels agile thanks to the turbo. However, on the motorway at speeds above 120 km/h, overtaking requires a gearbox “kickdown” and some patience, especially if the car is fully loaded (e.g. a 7-seat Tiggo 8). The engine needs to be revved to pull the weight.

At 130 km/h in top gear (usually 6th or 7th), the engine runs at around 2,600 - 2,900 rpm, which is acceptable in terms of noise, but it does affect fuel consumption.

Additional Options and Modifications

LPG conversion

This is very good news. Since this engine version (147 hp) uses an MPI injection system, conversion to LPG is simple, inexpensive and very cost-effective. Standard sequential systems can be used. Given the fuel consumption, LPG is a recommended investment that pays off quickly. Note: Always check whether you will lose the factory warranty by installing LPG.

Chip tuning (Stage 1)

The engine has some power reserve, but the limiting factor is often the gearbox. A safe “Stage 1” remap can raise power to about 165-170 hp and torque to 250-260 Nm. However, be careful – DCT gearboxes (especially those with dry clutches) have a torque limit they can withstand. Excessive power increases can drastically shorten gearbox life.

Gearbox and Drivetrain

In the mentioned models, this engine is most commonly paired with a DCT (Dual Clutch Transmission), usually with 6 or 7 gears (from Getrag or in-house design).

Gearbox issues

• DCT (robotised dual-clutch): These gearboxes offer fast gear changes, but can be jerky when moving off from a standstill or at low speeds (the so-called “shuddering” in traffic jams).
• Failures: The most common issue is clutch overheating in stop-and-go traffic (if it has a “dry” clutch) and mechatronic unit failure. Symptoms include delayed shifting, harsh engagement or inability to select a gear.
• Maintenance: The oil in a DCT gearbox must be changed every 40,000 to 60,000 km, even if the manufacturer claims it is “fill for life”. This is the only way to extend the life of the mechatronics and clutches.
• Clutch cost: A clutch kit for DCT gearboxes is very expensive (varies by market) and requires special tools for replacement.

Buying Used and Conclusion

When buying a used car with the SQRE4T15C engine, pay attention to the following:

1. Chain noise: Listen to the engine on a cold start. Any rattling lasting longer than 2–3 seconds is a red flag.
2. Gearbox operation: Test the car in traffic. Does it jerk when moving off? Does it shift smoothly from first to second? If there is hesitation or strong jolts, skip that particular car.
3. Leaks: Inspect the engine bay around the thermostat housing and turbocharger.

Conclusion: The SQRE4T15C (1.5T 147 hp) engine is a rational choice. It is not a racer, it uses a bit more fuel, but it offers simple technology (MPI + chain) that promises long service life and cheaper maintenance compared to more complex direct-injection systems. It is ideal for those planning an LPG conversion or those who want a robust engine for a family SUV, provided they are prepared for somewhat more frequent visits to the fuel station.