The 1.5-liter 3-cylinder Geely JLH-3G15TD engine has been produced in China since 2018 and is installed on the popular Atlas and Coolray crossovers, as well as their modifications under the Proton brand. This power unit is essentially a clone of the B3154T turbo engine known from the Volvo XC40.
JLH family: JLH-3G15TD, JLH-4G20TD, JLH-4G20TDB, JLH-4G20TDJ, JLH-4G20TDC, JLH-4G20TDG.
Specifications
| Production years | since 2018 |
| Displacement, cc | 1477 |
| Fuel system | direct injection |
| Power output, hp | 150 – 180 |
| Torque output, Nm | 255 – 265 |
| Cylinder block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 93.2 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | on both shafts |
| Turbocharging | single turbo |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 5.6 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Geely Coolray 2021) — city — highway — combined |
8.1 5.7 6.6 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Geely Atlas 1 (NL-3) since 2018;
- Geely Atlas Pro (NL-3B) since 2019;
- Geely Coolray 1 (SX11) since 2018;
- Geely Emgrand GT 2 (KC-2) since 2018;
- Proton X50 1 (SX11) since 2020;
- Proton X70 1 (NL-3) since 2018.
Disadvantages of the Geely JLH-3G15TD engine
- Like all direct injection units, it suffers from carbon deposits on the intake valves.
- From bad fuel, candles quickly fail, and then the catalyst.
- Carefully monitor the condition of the timing belt, as the valves bend when it breaks.
- Another dealers carried out a recall on the replacement of the ventilation pipe in the fuel tank.
Frequently asked questions about the Geely JLH-3G15TD
How much power does the Geely JLH-3G15TD make?
The Geely JLH-3G15TD develops 150 - 180 hp and 255 - 265 Nm of torque.
How much oil does the Geely JLH-3G15TD take and which one?
Engine oil capacity: 5.6 liters. Recommended oil: 0W-20.
Does the Geely JLH-3G15TD have a timing belt or chain?
The Geely JLH-3G15TD uses a timing belt.
Is the Geely JLH-3G15TD turbocharged?
Yes, the Geely JLH-3G15TD is turbocharged (single turbo).
Does the Geely JLH-3G15TD need valve clearance adjustment?
No, the Geely JLH-3G15TD has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Geely JLH-3G15TD last?
The typical lifespan of the Geely JLH-3G15TD is ~250 000 km with proper maintenance.
What is the fuel consumption of the Geely JLH-3G15TD?
Geely Coolray 2021: city 8.1, highway 5.7, combined 6.6 L/100 km.
What cars was the Geely JLH-3G15TD installed on?
Geely Atlas 1 (NL-3) since 2018; Geely Atlas Pro (NL-3B) since 2019; Geely Coolray 1 (SX11) since 2018; Geely Emgrand GT 2 (KC-2) since 2018; Proton X50 1 (SX11) since 2020; Proton X70 1 (NL-3) since 2018.
What are the common problems of the Geely JLH-3G15TD?
Like all direct injection units, it suffers from carbon deposits on the intake valves. From bad fuel, candles quickly fail, and then the catalyst. All known problems.
What engines are related to the Geely JLH-3G15TD?
JLH family: JLH-4G20TD, JLH-4G20TDB, JLH-4G20TDJ.
