Kia Ceed III vs Renault Mégane E-Tech: which is more reliable?
According to the MotorFiable Score, the Renault Mégane E-Tech (7.7/10) has fewer serious documented faults than the Kia Ceed III (6.1/10), mainly because of their engines.
| Item | Kia Ceed III | Renault Mégane E-Tech |
|---|---|---|
| Segment | Compact | Compact |
| Years | 2018–today | 2022–today |
| MotorFiable Score | 6.1 out of 10 | 7.7 out of 10 |
| Engine score | 5.9/10 | 7.6/10 |
| Most recommended engine | 1.0 T-GDI · Buy | Renault-Nissan CMF-EV (Mégane E-Tech, Ariya) · With caution |
| Score for the rest of the car | 6.3/10 | 7.9/10 |
| Suspension | 8.2 out of 100 faults | 9.6 out of 101 faultLow severity |
| Brakes | 7.0 out of 103 faultsCritical severity | 8.6 out of 101 faultMedium severity |
| Gearbox and clutch | 7.7 out of 104 faultsMedium severity | No documented faults |
| Electrical system | 7.9 out of 101 faultHigh severity | No documented faults |
| Electronics and infotainment | No documented faults | 8.9 out of 101 faultLow severity |
| Bodywork and interior | 8.6 out of 101 faultLow severity | 9.3 out of 101 faultLow severity |
| Airbags and safety | 8.6 out of 101 faultCritical severity | No documented faults |
Scores out of 10: the higher, the fewer serious documented faults. How we calculate them
Main faults of the Kia Ceed III
Outside the engine
- High severityFrequency: OccasionalElectrical systemClutch hydraulic actuator on the Ceed PHEV with short-circuit riskA Safety Gate alert from January 2025 records that the electronic board of the clutch hydraulic actuator on the plug-in hybrid Ceed (2019-2023) can become contaminated with fluid and cause a short circuit with a risk of fire.
- Critical severityFrequency: RareBrakesRecall for possible brake servo failure (tandem pump filter)Germany's KBA registered a recall for Kia Ceed III cars built between 2018 and 2020 over a defect in the tandem pump filter that can cause the brake servo to fail, with a loss of braking assistance and a harder pedal.
- Critical severityFrequency: RareAirbags and safetyRecall for seat belt pretensioner defect (2021-2022)On Kia Ceed III cars built in 2021 and 2022, a seat belt pretensioner defect can cause it to activate incorrectly in an accident and its cover can come off by itself, according to a recall recorded by Germany's KBA.
In their engines
- Critical severityFrequency: Common1.6 CRDiMHSG belt tensioner and crankshaft pulley failure (48V mild hybrid)On the 48V mild hybrid version, the tensioner of the starter-generator (MHSG) belt can seize; the belt slips or breaks and the overload can shear the pin that secures the pulley to the crankshaft, putting the engine out of time and causing the pistons and valves to collide.
- High severityFrequency: Common7DCTJerking, hesitation and mechatronic faults at low speedYes: several sources based on owner accounts name the 7DCT as one of the most-cited weak points of these models, with jerking and hesitation on pulling away, missing gears (sometimes reverse) and, on the most affected diesels, more than a third of the accounts mentioning gearbox faults.
- Critical severityFrequency: Occasional1.6 GDI / T-GDILow-speed pre-ignition and connecting rod damage in the 1.6 T-GDI (documented in the US)In the US, Hyundai and Kia have recalled the 1.6 T-GDI (Veloster, Forte): an engine software fault can allow pre-ignition that damages connecting rods and pistons, with knocking complaints after the update. No equivalent pattern documented for the same engine in Europe.Appears at around 100,000 km
Main faults of the Renault Mégane E-Tech
Outside the engine
- Medium severityFrequency: OccasionalBrakesParking lock (P position) may not engage: campaigns 0EWQ and 0EY9Two recalls issued in 2025 warned that the sensor on the Mégane E-Tech's parking brake actuator is misaligned, and the P-position lock may not engage properly when you select P, switch off the car, unfasten your seatbelt or open the door. The automatic parking brake still works.
- Low severityFrequency: CommonElectronics and infotainmentFreezing of the Mégane E-Tech's OpenR Link multimedia screenIt is the most cited fault on fiches-auto.fr: 29 of 86 testimonies mention an OpenR Link screen that freezes or goes black, loss of navigation, dropped Bluetooth and cascades of warnings, often resolved with updates.
- Low severityFrequency: OccasionalBodywork and interiorCharging connector flap fault on the Mégane E-TechAccording to the fiches-auto.fr profile, there are testimonies of a charging connector flap that opens and closes by itself, or gets stuck without closing; the profile mentions a campaign during servicing, without detailing its scope.
In their engines
- Medium severityFrequency: OccasionalRenault-Nissan CMF-EV (Mégane E-Tech, Ariya)Charging faults on the Mégane E-Tech: on-board charger, fast charging and connectorOn the fiches-auto.fr entry, charging is the most frequently reported fault in the electrical system of the Mégane E-Tech: 20 of 86 reports describe charging that stops or is rejected on AC (22 kW charger) or on fast charging, with warnings that charging is impossible.
- Medium severityFrequency: OccasionalRenault-Nissan CMF-EV (Mégane E-Tech, Ariya)Campaign 0EKN: connector in the battery cooling circuit of the Mégane E-Tech that may corrodeIn April 2025 Renault warned owners of the Mégane and Scénic E-Tech that a connector could corrode and leave the traction battery uncharged or limit power. The free repair consists of inspecting the connector and replacing the end of the battery cooling pipe. The information comes from owner forums that cite the manufacturer's letter.
- High severityFrequency: RareRenault-Nissan CMF-EV (Mégane E-Tech, Ariya)Mégane E-Tech traction battery: warnings, range loss and immobilisationThe fiches-auto.fr entry records 11 reports of traction battery problems on the Mégane E-Tech, including warnings, very reduced range, unbalanced modules and a few cases of cars immobilised. It is a sample of owners, without a degradation study or a recall that confirms it.