Kia 1.0 T-GDi

Cases of premature timing chain failure have been documented on the G3LC 1.0 T-GDi, in individual cases including chain snap and engine damage. Using the wrong engine oil or extended intervals accelerate wear considerably.

Symptoms: Metallic rattle on cold start, loud whistling or whining at higher rpm, sudden engine failure

The small turbo of the 1.0 T-GDi needs adequate cool-down time after sustained high-load use. Switching off the engine immediately after motorway driving can cause the hot turbine shaft to wear without oil cooling.

Symptoms: Turbo noise when transitioning from full load to idle, power drop, in the worst case turbo failure with blue smoke

As a direct-injection engine the intake valves are not cleaned by fuel. At higher mileages soot deposits build up on the intake valves, causing power loss and increased fuel consumption.

Symptoms: Gradual power loss, increased fuel consumption, rough idle at higher mileages.

Cases of intermittent boost pressure drop under full load have been reported on the G3LC 1.0 T-GDi. The turbocharger holds stable to around 0.8 bar; above this, pressure fluctuations can occur. MAP sensor as a possible cause.

Symptoms: Brief power loss during acceleration, engine hesitates under full throttle, irregular acceleration.

The Kia Stonic YB in several trim levels lacks adequate anti-pinch protection on the rear electric window regulators. There is an increased risk of injury to small children.