G4LH SmartStream G 1.5 T-GDi Engine Problems, Reliability

The 1.5-liter turbo engine Hyundai G4LH or Smartstream G 1.5 T-GDi has been assembled since 2020 and is installed on such popular models of the Korean company as i30, as well as Kia Ceed and Xceed.

Especially for our market, the power of this G4LH 1.5 T-GDi engine has been reduced from 160 hp. up to 150 hp.

Read Also: G4LA 1.2 Engine Specs, Problems, Reliability

Specifications Of The Hyundai G4LH 1.5 T-GDi Engine

Exact volume1482 cm³
Supply systemdirect injection
ICE power150 – 160 HP
Torque253 Nm
Cylinder blockaluminum R4
Block headaluminum 16v
Cylinder diameter71.6 mm
Piston stroke92 mm
Compression ratio10.5
ICE featuresDOHC
Timing drivechain
Phase regulatorDual CVVT
What oil to pour4.5 liters 5W-30
Fuel typegasoline AI-95
Ecological ClassEURO 6
Approx. resource220,000 km

Engine number G4LH is located in front at the junction with the box

Fuel Consumption Internal Combustion Engine Hyundai G4LH 1.5 T-GDi

Using the example of a 2021 Kia XCeed with a robotic gearbox:

City6.9 liters
Highway4.6 liters
Mixed5.8 liters

Which Cars Are Equipped With The G4LH 1.5 L Engine


  • i303 (PD): 2020 – present


  • Ceed 3 (CD): 2021 – present
  • XCeed 1 (CD): 2021 – present

Disadvantages, Breakdowns And Problems Of The G4LH 1.5 T-GDi Engine

  1. This turbo engine appeared quite recently and the statistics of its breakdowns have not yet been collected.
  2. In foreign forums, they complain only about noisy work or excessive vibration.
  3. Like all direct injection engines, this one suffers from carbon deposits on the intake valves.
  4. The network describes isolated cases of replacing the timing chain on a run of less than 100,000 km.
  5. The weak points of this engine include the adsorber valve and short-lived pillows.
5/5 - (25 votes)

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