Hyundai i20 1.0 T-GDi Engine Replacement Compare Prices & Get Quotes

A reconditioned or rebuilt G3LC engine for the Hyundai i20 1.0 T-GDi typically costs between £1,400 and £3,200 for the supply-only unit in the UK.

• Used G3LC engines start around £800 but carry higher risk due to unknown history.
• Rebuilt units with updated timing components sit at the £1,800-£3,200 mark.
• Supply and fit labour will add £450-£650 depending on the specialist.

The G3LC engine is prone to direct injection carbon buildup and turbocharger wastegate wear. Watch for early warning signs before catastrophic failure.

• Hesitation on acceleration, rough idling, or a noticeable drop in fuel economy.
• A distinct metallic rattling or buzzing noise from the turbo area on overrun.
• Engine management lights indicating misfires or boost pressure faults.

Yes, the modern Hyundai i20 1.0 T-GDi market holds its value well, making a full engine replacement a financially sound decision compared to parting out.

• Modern 1.0 T-GDi models regularly sell for £6,000 to £18,000+.
• A £1,800-£3,200 rebuilt engine preserves the vehicle's drivability, refinement, and market value.

Because the G3LC is a compact, densely packed turbocharged engine, a specialist workshop requires specific diagnostic tools and careful extraction.

• Engine removal and refitting usually takes 8 to 10 hours of labour.
• Total workshop turnaround is typically 3 to 5 working days, including ECU coding and adaptation.

While both are petrol engines, the 1.0 T-GDi uses a turbocharged three-cylinder design, whereas the 1.2 MPi is a naturally aspirated four-cylinder unit.

• The 1.0 T-GDi offers significantly better low-end torque and fuel efficiency but requires stricter thermal and carbon management.
• The 1.2 MPi is simpler mechanically, making it generally more robust for high-mileage urban use, though it lacks the punch of the turbocharged unit.