Compact crossover sharing its platform with the Kia Rio and Hyundai Kona. The 1.6 CRDi D4FB diesel delivers strong torque and real-world fuel economy around 5-6 litres per 100 km, paired with a 6-speed manual gearbox. Available in 110 hp and 136 hp variants from 2017 to 2020, it was dropped from most European markets as diesel demand declined. The 7-year/150,000 km Kia warranty is a significant advantage for used buyers, potentially covering cars registered up to 2020.· more· less
7-year warranty, often still activeExcellent fuel economy (~5 l/100km)
DPF clogs easily on short tripsTiming chain stretches at higher km
Buy if: You do regular motorway driving, the Kia warranty is still active, and you can verify the service history shows timely oil changes.
Avoid if: Your driving consists mainly of short urban trips under 15 km (DPF will clog), or the car has been used primarily in city traffic.
Price & maintenance
Used price
€12,600
median asking price, typically 75,000 km
Typical range€9,500 – €12,600
Maintenance cost
€700 – €1,400/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€450 – €800 /yr
Risk bufferunplanned repairs€250 – €600 /yr
Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Diesel particulate filter clogs when the car is used predominantly for short urban trips · more· less
Like all modern diesels, the 1.6 CRDi requires periodic DPF regeneration, which needs sustained driving at motorway speeds for 20-30 minutes to burn off accumulated soot. Cars used primarily for short trips below 15 km rarely reach the exhaust temperatures needed for regeneration. Symptoms include a DPF warning light, reduced power, and increased fuel consumption. Professional DPF cleaning costs €300-500. If the filter is beyond cleaning and needs replacement, costs rise to €1,500-2,500 including labour. The best prevention is regular motorway runs of at least 30 minutes. Cars with complete motorway-heavy driving histories are significantly less likely to develop this problem.
Timing chain stretch
€1,000 - 2,0002 of 7
Upper timing chain stretches gradually, causing buzzing noise and eventually affecting valve timing · more· less
The D4FB engine uses a dual timing chain setup. The upper chain is known to stretch over time, typically becoming noticeable between 120,000 and 150,000 km. A characteristic buzzing or rattling sound from the front of the engine, especially on cold start, is the first symptom. As stretch progresses, valve timing becomes inaccurate, leading to rough running, reduced power, and increased emissions. If ignored, the chain can skip teeth, causing catastrophic valve-piston contact. Replacement of both chains, tensioners, guides, and sprockets costs €1,000-2,000 depending on shop rates. Regular oil changes with the correct specification (ACEA C2/C3) and at the recommended intervals help slow chain wear.
EGR valve carbon buildup and failure
€300 - 8003 of 7
EGR valve clogs with carbon deposits, causing rough idle, increased emissions, and engine warning light · more· less
The exhaust gas recirculation valve on the 1.6 CRDi accumulates carbon deposits over time, particularly in cars that spend most of their time in city traffic. A clogged EGR causes rough idling, black smoke, loss of power, and often triggers an engine warning light. In some cases, a faulty EGR valve accelerates turbocharger wear. Cleaning the EGR valve costs €150-300 at a specialist. If the valve needs full replacement, expect €400-800 including labour. A 2024 Kia recall (KBA ref 14327R) addressed EGR valve short circuits on certain 2024-built Stonic and Picanto models, which could cause engine failure. While this recall targets newer production, it highlights EGR as a known weak area.
Turbocharger failure
€800 - 2,0004 of 7
Turbo can fail from oil starvation or EGR-related contamination, typically after 100,000 km · more· less
Approximately 15% of Kia vehicles with the 1.6 CRDi engine have experienced turbocharger-related problems within the first five years of ownership according to reliability surveys. Common causes include oil starvation from extended oil change intervals, contamination from a faulty EGR valve, and clogged air filters. Symptoms include blue or white smoke, loss of boost, whistling noises, and oil consumption. A refurbished turbo unit costs around €400-600, while a new unit plus fitting runs €1,200-2,000. The engine was updated after 2009 with revised ECU firmware that operates the turbo in a gentler mode, reducing premature wear. Regular oil changes and prompt EGR maintenance significantly reduce turbo failure risk.
Glow plug failure
€200 - 5005 of 7
Glow plugs fail causing difficult cold starts, white smoke, and rough running for the first minutes · more· less
The D4FB engine's glow plugs degrade over time, leading to poor cold starting. Symptoms include extended cranking in cold weather, white smoke from the exhaust on startup, and rough running for the first one to two minutes. Around 70% of cold-start failures in 1.6 CRDi engines are attributed to the glow plug circuit. The glow plug wiring harness is also a known weak point. Diagnosis requires testing each glow plug individually, as voltage at the common connector can appear normal even when individual plugs have failed. Replacing all four glow plugs costs €200-500 including labour. This is a relatively straightforward job at independent workshops.
Fuel injector seal and return pipe leaks
€200 - 1,2006 of 7
Injector seals and fuel return pipes develop leaks over time, causing fuel smell and starting issues · more· less
The Bosch common-rail injector seals on the D4FB can deteriorate with age and heat cycles, allowing fuel to seep past. Fuel return pipe fittings can also develop leaks as gaskets lose their seal. Symptoms include a fuel smell around the engine, difficult starting after the car has sat overnight (fuel drains back), and in severe cases, oil dilution from fuel entering the sump. Replacing injector seals is a relatively cheap job at €200-400. If an injector itself needs replacement due to internal failure, costs per injector run €250-350. Full injector reconditioning or replacement of all four injectors can reach €1,000-1,200.
Exhaust gas temperature sensor failure
€150 - 4007 of 7
EGT sensor gives faulty readings, triggering P0546 code and engine warning light · more· less
The exhaust gas temperature sensor, positioned before the catalytic converter, monitors exhaust temps for the ECU to adjust fuelling and DPF regeneration timing. When it fails, the P0546 diagnostic code is commonly logged. The sensor can give false high-temperature readings, especially during cold starts. While the check engine light alone may not cause immediate driveability issues, driving with a faulty EGT sensor for extended periods can disrupt DPF regeneration cycles, leading to premature DPF clogging. The sensor itself costs €50-100, with labour adding another €100-300 depending on accessibility. Prompt replacement is advisable to avoid secondary DPF damage.
Reliable diesel if maintained, but needs motorway driving
The D4FB 1.6 CRDi is a proven engine used across many Hyundai-Kia models. Its main weaknesses are the common diesel issues of DPF clogging and EGR carbon buildup, both of which are manageable with appropriate driving patterns and regular maintenance. The timing chain is robust if oil changes are done on schedule, though it warrants inspection from 120,000 km onwards. The 7-year Kia warranty provides excellent coverage for used buyers. Cars with documented motorway-heavy usage and complete service history are the safest bets.
Service history
Complete Kia dealer or specialist records essential. Verify oil changes at every 30,000 km / 12 months for diesel models.
Tires
Check tread depth, age (date codes), and uneven wear patterns. Standard size is 205/55R16.
Cold start
Must start engine completely cold. Listen for timing chain rattle and observe exhaust smoke colour.
Test drive
Minimum 20 minutes including mixed speeds. Watch for warning lights and listen for unusual engine or exhaust noises.
Specific for this vehicle
Check DPF warning light and regeneration history
Ask about driving patterns. Cars used mainly for short trips are high risk. A diagnostic scan can show DPF soot loading level.
Listen for timing chain buzzing on cold start
Start engine cold and listen for metallic buzzing or rattling from the front of the engine during the first 30 seconds. This indicates chain stretch.
Check for EGR-related engine warning lights
Run a diagnostic scan for EGR-related fault codes. Rough idle at traffic lights can also indicate EGR problems.
+ 3 more checksShow less
Inspect for fuel smell around the injectors
Open the bonnet and check around the injectors and fuel return pipes for signs of fuel leakage or dampness.
Test cold start behaviour in cold weather
The engine should start without excessive cranking. Prolonged cranking or white smoke suggests glow plug issues.
Verify Kia warranty status
Check the registration date. The 7-year/150,000 km warranty may still apply to 2019-2020 models. Confirm with a Kia dealer using the VIN.
Recalls and Technical Service Bulletins
EGR valve short circuit risk causing engine failure (2024-built Stonic/Picanto, KBA ref 14327R)Verify if applicable
Takata airbag inflator (select 2017-2019 models, market-dependent)Verify with VIN
Contact a Kia dealer with the VIN to verify all recalls have been completed. The EGR valve recall primarily affects 2024-production vehicles, but earlier diesel models should also have their EGR system inspected.
Warranty Status
Factory warranty (7 years / 150,000 km)May still apply to 2019-2020 registered cars (expires 2026-2027)
Rust perforation warranty (12 years)Active on all Stonic models until 2029-2032
Paint warranty (3 years)Expired on all models
Kia's 7-year/150,000 km warranty is one of the longest in the industry. Warranty transfers to subsequent owners. For 2017-2018 registered cars, the warranty has expired. For 2019-2020 models, warranty may still be active. Confirm with a Kia dealer using the VIN.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
