Engine Geely JLH-3G15TD

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.


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
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.

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