The third-generation Sorento brought Kia firmly into the mainstream SUV market with a well-equipped, spacious seven-seater at a competitive price. The 2.2 CRDi D4HB diesel produces 147 kW, quoted as 200 PS in Europe and about 197 bhp in the UK, with 441 Nm. Early cars came with a 6-speed manual or 6-speed torque converter automatic; the European facelift kept the manual and replaced the automatic with an 8-speed. Most were sold with all-wheel drive. Kia's 7-year / 150,000 km warranty is a significant draw, though most UM models are now approaching or past their warranty expiry.· more· less
7-year warranty, best in segmentStrong and proven D4HB diesel
Emissions system needs highway useTransfer case spline wear on AWD
Buy if: You want a practical diesel SUV with towing capability and can verify the PTC heater recall has been completed.
Avoid if: The car has been used primarily for short urban trips, or there is no evidence of regular AWD system fluid changes.
Price & maintenance
Used price
€18,200
median asking price, typically 135,000 km
Typical range€14,600 – €22,900
Kilometres drivenAll
Maintenance cost
€850 – €1,550/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€500 – €850 /yr
Risk bufferunplanned repairs€350 – €700 /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.
Used price
€18,200
Typically €14,600 – €22,900, at around 135,000 km.
Kilometres driven
Maintenance
€850 – €1,550per year
€500 – €850
service, tyres, brakes
€350 – €700
repair buffer
Price & maintenance
Used price
€17,500
median asking price, typically 140,000 km
Typical range€15,200 – €22,000
Maintenance cost
€850 – €1,550/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€500 – €850 /yr
Risk bufferunplanned repairs€350 – €700 /yr
Price estimates are based on French 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 French asking prices. Prices and costs vary by vehicle condition and location.
Used price
€17,500
Typically €15,200 – €22,000, at around 140,000 km.
Carbon buildup clogs the EGR valve, especially with short-trip driving patterns · more· less
The D4HB engine's EGR system is prone to carbon buildup, particularly when the car is driven mainly on short urban trips that prevent exhaust temperatures from reaching levels needed to burn off deposits. Symptoms include rough idle, loss of power, increased emissions, and the engine management light illuminating. Cleaning the EGR valve at an independent workshop costs around €200-400 and may provide a temporary fix, but replacement including the EGR cooler runs €500-1,200 depending on workshop rates and whether the cooler is also affected. The UM generation added an EGR cooler which itself can become clogged or develop internal leaks. Many owners report needing EGR attention between 80,000 and 130,000 km, with predominantly urban-driven cars affected earlier.
DPF clogging from insufficient regeneration
up to €2,5002 of 6
Diesel particulate filter blocks when the car does not get regular motorway runs · more· less
The DPF requires sustained driving at motorway speeds (above 60 km/h for at least 20-30 minutes) to reach the temperatures needed for passive and active regeneration cycles. Repeated short trips prevent regeneration, causing progressive soot accumulation. Warning signs include the DPF light illuminating, reduced performance, and increased fuel consumption. A forced regeneration at a dealer costs around €150-300. If the filter is heavily clogged, professional cleaning costs €400-800, while replacement costs €1,500-2,500. Later UM models, from the Q1 2018 European facelift, have improved DPF management software that handles regeneration more effectively. Owners who regularly combine their Sorento with longer drives typically report no DPF issues even past 200,000 km.
Turbo actuator failure (VGT)
up to €2,0003 of 6
Variable geometry turbo actuator sticks or fails, causing limp mode and power loss · more· less
The electronically controlled variable geometry turbocharger (e-VGT) uses an actuator to adjust the vane geometry. Over time, carbon buildup from exhaust gases can cause the vanes or actuator mechanism to stick, particularly in cars that are driven gently or on short trips. Symptoms include intermittent or permanent limp mode, loss of boost, and an EPC warning light. A dealer diagnostic will confirm actuator faults. In many cases, a specialist can repair or replace just the actuator for €500-800. If the turbo internals are also damaged, a complete turbo replacement costs €1,200-2,000. Using quality fuel and regular spirited driving helps keep the VGT mechanism clean. A small filter on the solenoid exhaust can also become blocked and should be checked.
Transfer case spline wear (AWD models)
up to €2,5004 of 6
AWD coupling splines strip from lack of regular fluid changes, disabling rear drive · more· less
On AWD-equipped Sorentos, the transfer case coupling splines can wear and eventually strip, particularly if the transfer case fluid is not changed at regular intervals. The differential carrier that sends power from the automatic gearbox to the transfer case is the typical failure point. When the splines strip, the rear axle loses drive entirely. This issue is shared across the Hyundai/Kia AWD platform and is well-documented on both Sorento and Santa Fe forums. Repair involves replacing the transfer case coupling, which costs €800-1,500 at an independent specialist, or up to €2,500 at a dealer. Prevention is straightforward: change the transfer case fluid every 40,000-60,000 km. Cars with no evidence of transfer case maintenance in the service history are a significantly higher risk.
Dual mass flywheel wear (manual gearbox)
up to €2,5005 of 6
DMF develops rattling and vibration, requiring replacement together with the clutch · more· less
Manual-gearbox UM Sorentos use a dual mass flywheel that absorbs engine vibrations before they reach the gearbox. The DMF can wear prematurely, particularly with heavy towing, urban stop-start driving, or if the driver frequently lugs the engine at low RPM. Symptoms include a rattling noise at idle (especially with the clutch pedal depressed), vibration through the pedals, and in advanced cases, difficulty engaging gears. Forum reports show failures as early as 40,000 km in severe cases, though 80,000-120,000 km is more typical. Replacement requires removing the gearbox and is usually combined with a new clutch kit. Total cost is approximately €1,200-2,500 depending on workshop and whether OEM or aftermarket parts are used. Automatic models are not affected by this issue.
PTC auxiliary heater connector overheating
€0 (recall)6 of 6
Electrical connector on the cabin PTC heater can overheat and melt, with fire risk · more· less
The PTC (positive temperature coefficient) auxiliary cabin heater found on diesel UM Sorentos can overheat due to a damaged connector terminal. In extreme cases, the connector can melt, posing a fire risk. This is the subject of a recall affecting UM diesels produced between May 2014 and February 2020. The remedy involves a software upgrade to the climate control system (FATC) and inspection of the PTC heater connector. If the connector is found to be damaged, the PTC heater and wiring connector are replaced free of charge. Verify completion with a Kia dealer using the VIN.
Reliable diesel but emissions system demands regular highway use
The D4HB engine in the UM Sorento is fundamentally robust, and many examples exceed 200,000 km without major mechanical failures. The main ownership risks center around the emissions system (EGR, DPF) which requires regular motorway driving, the AWD transfer case which needs fluid changes every 40,000-60,000 km, and the PTC heater recall, which must be verified as completed. Cars from the Q1 2018 European facelift benefit from improved DPF management software. Manual gearbox cars should have the DMF condition assessed.
Service history
Complete Kia dealer or specialist records essential. Verify oil changes at least every 15,000 km or 12 months.
Tires
Check tread depth, age (date codes on sidewall), and uneven wear patterns indicating alignment or suspension issues.
Cold start
Start the engine completely cold. Listen for unusual rattling, knocking, or excessive diesel clatter in the first 30 seconds.
Test drive
Drive for at least 30 minutes including motorway speeds. Monitor for warning lights, hesitation, and transmission smoothness.
Specific for this vehicle
Verify PTC heater recall completed
Contact Kia with the VIN to confirm the PTC heater connector inspection and FATC software upgrade have been performed.
Check for DPF warning light history
Ask the seller about DPF regeneration habits. Check for stored DPF fault codes with a diagnostic scanner. A car used mainly for short trips is higher risk.
Inspect transfer case fluid condition (AWD models)
Check service records for transfer case fluid changes every 40,000-60,000 km. Dark or metallic-looking fluid indicates neglected maintenance and potential spline damage.
+ 2 more checksShow less
Check for EGR-related fault codes
Use a diagnostic scanner to check for stored or pending EGR-related codes. Rough idle or slight hunting at idle can indicate early EGR fouling.
Listen for DMF rattle at idle (manual only)
With the engine at idle and in neutral, depress and release the clutch slowly. A pronounced rattling or vibration change indicates DMF wear.
Recalls and Technical Service Bulletins
Automatic may move out of Park without the brake pedal, defective shift-lock mechanism - Korean-built UM automatics produced April to July 2015Critical - verify completed
PTC auxiliary heater connector overheating risk - UM diesels produced May 2014 to February 2020Verify completed
Tow-bar electronic control module software - cars with the tow module or adaptive cruise control produced 20 March 2015 to 18 May 2016Verify completed
The PTC heater recall is the one that reaches most diesel UM Sorentos, and the shift-lock recall matters on Korean-built automatics from spring 2015. Campaigns under similar names elsewhere are generation- and market-specific, so contact a Kia dealer with the VIN and have each one confirmed against the car itself.
Warranty Status
Factory warranty (7 years / 150,000 km)2015-2018 models expired or expiring; 2019-2020 models may have remaining coverage
Rust perforation warranty (12 years)Valid until 2027-2032 depending on build date
Kia's 7-year / 150,000 km warranty is transferable to subsequent owners and is the longest in the segment. Most 2015-2018 UM Sorentos are now outside warranty coverage, but 2019-2020 models may still have 1-2 years remaining. Verify warranty status 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.
