Kia Sportage
from £900 to £2,800
Rebuilt units from £900 · Common codes: U2 1.7 CRDi, D4HA 2.0 CRDi, G4KD
Get quotes today from trusted UK Kia engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available.
Kia Sportage
from £900 to £2,800
Rebuilt units from £900 · Common codes: U2 1.7 CRDi, D4HA 2.0 CRDi, G4KD
Kia Ceed
from £900 to £2,200
Rebuilt units from £900 · Common codes: U2 1.7 CRDi, G4KD, G4FC
Kia Sorento
from £1,500 to £2,800
Rebuilt units from £1,500 · Common codes: D4HA 2.0 CRDi, R2.2 CRDi

Based on real enquiries from UK buyers - updated regularly. All prices are typical UK rebuilt engine market ranges and reflect recent quotes from our network of KIA engine specialists.


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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”

Compare costs for every major KIA engine - Theta II, CRDi diesel and Gamma families. All prices are typical UK market ranges for professionally rebuilt engines with warranty. Click "Get Quote" on any engine to receive tailored prices from our network of UK KIA specialists.

History:
Ceed (JD, CD), Rio (UB, YB), Carens (RP)

History:
Ceed (JD, CD), Sportage (SL, QL)

History:
Sportage (SL, QL), Optima (TF, JF), Sorento (XM)

History:
Sorento (XM, MQ4), Carnival (YP)

KIA engines are generally reliable within the 7-year/100,000 mile warranty period, but once coverage expires or claims are denied, owners face significant replacement decisions. The Theta II petrol family and 1.6/1.7 CRDi diesel units dominate replacement demand due to well-documented bearing, timing chain, and oil consumption issues. Every rebuilt KIA...
Theta II Rod Bearing Failure
Most affected vehicles
KIA Sportage, Sorento, Optima, Ceed (2011-2019, Theta II G4KD 2.0L & G4KE 2.4L GDI)
Failure mileage range
60,000-100,000 miles
Typical failure window
Root cause
Manufacturing tolerance issues in connecting rod bearing clearance lead to premature wear and oil starvation under load, a defect acknowledged in multiple recalls and class-action settlements.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| | Major Rebuild - Engine-Out Bearing Replacement | £3,500 - £5,500 | £2,200 - £3,800 | | Engine removal, crankshaft inspection, replacement of all rod bearings with upgraded components, oil pump verification, full reassembly and testing. | Suitable only if crankshaft is undamaged; adds 30,000-50,000 miles if executed early, but risk of residual damage remains. | |
| | Full Replacement - Rebuilt / Reconditioned Theta II Engine | £6,500 - £9,500 | £2,800 - £4,500 | | Supply & fit of fully reconditioned engine with upgraded bearings, pistons, and oiling components; bench-tested; includes 12-month unlimited mileage warranty. | Most reliable long-term solution; addresses root cause; ideal for vehicles worth £3,000+ where keeping the car makes financial sense. |
Our recommendation
On a KIA Sportage or Optima with Theta II engine knock, we rarely recommend a major rebuild unless the vehicle is low-mileage and otherwise pristine. For most owners, a rebuilt replacement engine with upgraded bearings from EngineMarket's specialist network delivers better value and peace of mind than gambling on a partial repair.
→ Compare rebuilt Theta II engine prices for your Sportage, Sorento or Optima
Every KIA engine type available through our UK network, with typical price ranges and recommendations based on your vehicle's age, condition and your budget.
Compare Land Rover engine prices with vetted UK suppliers
All engine types include a minimum 12-month warranty. Prices are typical UK market ranges and depend on exact engine code, supplier, and any additional fitting services. Use our free comparison tool to get a tailored quote for your KIA model today.
Compare Kia Engine Prices
Every KIA engine size explained - with the models and engine codes that used each displacement - so you can quickly identify the correct replacement unit for your vehicle.
The 1.4L diesel displacement appears primarily in early-generation KIA city cars and small MPVs, using the D4FC engine family. While generally robust, these units can suffer from EGR valve clogging and turbo actuator wear, which-when combined with high mileage-often drives owners toward cost-effective replacement rather than repeated repairs
Engine code(s)
D4FC
Compatible models (UK)
KIA Picanto, Venga, Ceed (2011-2017)
Power output
Verified by registration
Common failure points
EGR valve clogging, turbo actuator sticking, DPF regeneration issues
Production years: 2011-2019
Get quotes for KIA 1.4L diesel enginesCompare Kia engine fuel types by replacement costs, running costs, reliability reputation, and model availability. Use this guide to understand your options - then enter your registration for an instant match and quotes from UK Kia specialists.

| Fuel type | Avg. replacement cost (supply only) | Typical MPG / range | Common brand-wide issues | Best for |
|---|---|---|---|---|
Diesel | £800 - £2,500 | 45 - 65 mpg | Motorway commuters and high-mileage drivers | |
Petrol | £1,200 - £3,500 | 30 - 50 mpg | Lower-mileage drivers and performance users | |
Hybrid (PHEV) | £2,500 - £4,500 + £3,000 - £8,000 battery | 30 - 60 mpg + electric | Company car users and urban drivers | |
Electric (BEV) | £2,500 - £5,000 | 120 - 300 miles | Low-maintenance city drivers |
Labour / installation notes
Hybrid and electric vehicles may require specialist safety training. Always ensure the quote includes labour and safety checks.
Performance / model premium
High-output models command a premium due to specialist components, lower supply volumes and more complex fitting.
Running cost comparison
Diesel can suit motorway mileage, petrol often suits shorter trips, and hybrid or electric value depends on charging habits.
Not sure which fuel type your Kia has?
Enter your registration to identify your model, engine code and compatible replacement options.
Minimum 12-month unlimited mileage warranty

This section maps every major Kia engine change across the full UK model range - from the entry-level Gamma and Kappa petrols of the early 2000s through the CRDi diesel families, the Theta II recall era, Smartstream electrified powertrains, and today's EV6 and EV9 electric platforms - so owners can identify their exact engine by vehicle year and compare rebuilt engine prices from UK specialists.
⚙Key changes
▣Main engines
FE/ B6 - 1.5/1.6 naturally aspirated petrol (Sephia, Shuma, Rio early)
G4ED/ G4EE - 1.4/1.6 CVVT petrol - Hyundai/Kia shared architecture (Rio, Cee'd early forerunner models)
RF- 2.0 indirect diesel (Sportage Mk1, Carens)
J3(CRDi) - 2.5 CRDi common-rail diesel (Sorento Mk1)
▰Popular variants
🔧Known for
Engine codes covered:
FEB6G4EDG4EERFJ3J3CRDiQuick, honest answers to the most common questions KIA owners ask before comparing engine replacement prices and finding a UK specialist.
Join thousands of UK drivers who compare KIA engine prices through our network of trusted specialists. Every rebuilt and reconditioned unit is backed by a minimum 12-month unlimited mileage warranty and nationwide delivery.
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See prices, warranty terms, and fitting options side-by-side before you commit, ensuring you find the best value for your budget and vehicle.
Covering every model from Picanto to Sorento, with supply-only or supply-and-fit available nationwide, so you get the right solution wherever you are.
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Find the best KIA engine replacement UK drivers rely on. Compare prices from trusted specialists today and get back on the road with confidence.