Kia Soul 1.6 GDI Petrol Engines
from £800 to £4,500
Rebuilt units from £1,800 · Common codes: G4FG, G4FC, G4FA
Get quotes from trusted UK Kia Soul engine specialists. Compare reconditioned, rebuilt and used prices for 1.6L petrol to 1.6L CRDi - G4FC & D4FB covered. Compare supply & fit options today.
Kia Soul 1.6 GDI Petrol Engines
from £800 to £4,500
Rebuilt units from £1,800 · Common codes: G4FG, G4FC, G4FA
Kia Soul 2.0 Nu Petrol Engines
from £800 to £4,500
Rebuilt units from £1,800 · Common codes: G4NA, G4KD
Kia Soul 1.6 CRDI Diesel Engines
from £800 to £4,200
Rebuilt units from £1,800 · Common codes: D4FB

Most replacements completed within 3-5 days.
The table below shows typical UK rebuilt engine costs across Kia Soul variants - compare failure causes, engine codes, fuel types, and price ranges to benchmark what UK drivers are paying.


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Not sure which variant your Kia Soul is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.

Every engine code fitted to the Kia Soul across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across Kia Soul variants.

G4FG - 1.6L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Avg. rebuilt price
£1,100 - £2,300
Supply only
Technical specifications
Common failures
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Kia Soul engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

Kia Soul reliability is generally strong for urban commuting, but specific petrol and diesel engines develop predictable faults that trigger high replacement demand. The 1.6 GDI (G4FG) and 2.0 Nu (G4NA) petrol units dominate failure searches due to timing chain stretch and piston ring defects, while the 1.6 CRDi (D4FB) faces turbo and injector degradation...
Kia Soul 1.6 GDI Carbon Buildup
Most affected vehicles
Kia Soul 1.6 GDI '2', '3', '4', Connect Edition, First Edition (2012-2019, G4FG)
Failure mileage range
50,000 - 80,000 miles
Typical failure window
Root cause
Direct injection sprays fuel directly into the combustion chamber, bypassing the intake valves. Oil vapour from the PCV system coats the valves, baking into hard carbon deposits that restrict airflow, cause misfires, and trigger MOT emissions failures.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Walnut Blasting & Intake Cleaning | £800 - £1,200 | £500 - £850 | Specialist removes intake manifold, uses crushed walnut shells to blast carbon from valves, replaces gaskets and resets ECU adaptation values | Restores power and clears MOT emissions, but carbon will return if urban driving patterns remain unchanged. Best as preventative maintenance under 70,000 miles. |
| Intermediate - High Pressure Fuel Pump & Sensor Replacement | £1,100 - £1,600 | £750 - £1,100 | Replaces failed HPFP, camshaft position sensors, and damaged injectors triggered by excessive back pressure from restricted airflow | Addresses secondary GDI damage caused by prolonged carbon buildup. Cost-effective only if valves are mechanically sound and cylinder compression remains within factory spec. |
| Full Replacement - Rebuilt G4FG Engine with Supply & Fit | £2,200 - £3,200 | £1,600 - £2,400 | Supplies a reconditioned G4FG unit with professionally decarbonised intake valves, updated PCV components, full bench testing and dyno validation | Long-term solution for heavily coked engines. Includes upgraded valve guides, new timing components, and a 12-month warranty covering all internal components. |
Our recommendation
On a Kia Soul with moderate mileage and intact compression, a specialist walnut blast is the most cost-effective first step. However, if P0011/P0014 codes are present alongside severe knock sensor warnings or failed compression tests, the carbon damage has likely progressed to timing chain tension. In that scenario, full Kia Soul G4FG engine replacement is safer and more economical than repeated component repairs.
Compare rebuilt G4FG 1.6 GDI engine prices for your Kia Soul
Every Kia Soul engine type is available through our UK network with typical price ranges based on variant, engine code and budget.
Compare Kia Soul engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Kia Soul within hours.

Every engine displacement officially fitted to the Kia Soul across UK generations is detailed below, complete with compatible engine codes, production years, and known failure points.
The 1.6L CRDi diesel powered the Soul across all three UK generations, delivering the low-end torque required for urban towing and high-mileage commuting. Its common-rail injection system provided strong fuel economy, though prolonged stop-start driving frequently accelerates turbo and EGR component wear. It remains the backbone of the diesel range for private hire and fleet operators.
Engine Code(s)
D4FB
Compatible Models (UK)
1.6 CRDi '2', '3', '4', Connect Edition, First Edition
Power output
Verified by registration
Common Failure Points
Injector failure, turbo oil seal leaks, EGR cooler clogging on high-mileage examples
Production Years: 2009-2023
Get quotes for Kia Soul 1.6L diesel engines
Choose your Kia Soul engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 1.4 MPI to the latest 2.0 Nu and 1.6 CRDi units.
The 1.6L CRDi diesel powered all three Soul generations in the UK, delivering strong torque for urban towing and high-mileage commuting but facing turbo and injector wear at higher mileages.
Common Kia Soul Diesel Engine Families
Found In
Known For
Typical Diesel Models
The 1.6L CRDi diesel powered all three Soul generations in the UK, delivering strong torque for urban towing and high-mileage commuting but facing turbo and injector wear at higher mileages.
Common Kia Soul Diesel Engine Families
Found In
Known For
Typical Diesel Models
Petrol engines dominate Kia Soul replacement searches, with Gamma (1.4L/1.6L MPI/GDI) and Nu (2.0L) families covering all generations but facing timing chain, carbon buildup and piston ring issues.
Common Kia Soul Petrol Engine Families
Found In
Known For
Typical Petrol Models
No hybrid, plug-in hybrid or pure electric variants of the Kia Soul were officially sold in the UK market across any generation.
Important Notes
Not sure which fuel type your Kia Soul has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Kia Soul specialists.

This section covers every major engine change across the Kia Soul's UK production timeline, organised so owners can quickly identify their engine code and compare rebuilt replacement prices from vetted UK specialists.
⚙Key Changes
▣Main Engines
G4FA- 1.4L petrol (1.4 '1', '2')
G4FC- 1.6L petrol MPI (1.6 '3', '4')
D4FB- 1.6L diesel CRDi (1.6 CRDi '2', '3')
▰Popular Models
🔧Known For
Engine Codes Covered:
G4FAG4FCD4FB