Seat Leon Cupra 245 ST
EA888 Gen4 with 245 hp is the base Cupra Leon unit of the KL generation. Significantly revised thermal management compared to Gen3, though water pump failures are still documented. Infotainment reboots are a platform software issue, not an engine fault.
Fast estate with 245 hp
Cupra power in estate format. The ST offers space and punch in equal measure — the perfect all-rounder for sporting drivers.
Engine Weaknesses 5
The EA888 Gen3B timing chain can stretch and, if left unaddressed, lead to engine damage. Rattling occurs especially during cold starts. Recommended replacement interval around 120,000–150,000 km.
Symptoms: Metallic rattling on cold start that fades after warm-up; camshaft position fault codes
The DNN as EA888 Gen3B can also show water pump failures leading to overheating. Occurs less frequently than with Gen1/2, but remains a known weak point of the EA888 family.
Symptoms: Coolant loss, coolant smell, rising temperature gauge
The EA888 water pump tends to leak or fail completely, which can lead to engine overheating. Preventive replacement at major service is recommended.
Symptoms: Coolant loss, temperature rise, coolant warning light, steam from engine bay
The Leon KL with DNN engine shows software-related issues on the multimedia system: unexpected restarts, Bluetooth disconnections, and Apple CarPlay failure. Software updates resolve issues temporarily.
Symptoms: Multimedia restarts while driving, Bluetooth drops out, rear-view camera responds with delay
Problems with the variable valve timing cause rough idle, power loss, and increased fuel consumption. Often triggered by old oil clogging the hydraulic channels of the adjuster.
Symptoms: Rough idle, power loss, increased fuel consumption, fault codes P0010/P0011
Vehicle Weaknesses 10
On the plug-in hybrid (2020–2022) the high-voltage battery is insufficiently secured. Short circuits can trigger a fire. Free retrofit at the dealer.
The DSG gearbox shows increased clutch wear under heavy city use and when towing. Regular gearbox oil changes are essential.
The four drain channels of the panoramic roof become blocked by leaves. Water collects in the footwell or spare wheel well. Membranes at the hose end cause additional blockage.
On approximately 11,900 Leon models from October 2020 to June 2022 the cargo barrier can detach and become a safety hazard in an accident.
The MIB3 infotainment system shows software bugs such as screen crashes and camera failures. Software updates fix most of the problems.
Coil springs and dampers show more defects than the overall average even at the first roadworthiness inspection. Seat fitted some examples with leaky shock absorbers that tend to seep early.
The reversing camera no longer shows an image, usually caused by a defective control unit or cable break at the connector. Software version 1896 partially resolves the issue.
Front lighting is rated as somewhat critical in TÜV reports. LED control units can fail, and headlight lenses show premature fogging.
The 1.0/1.5 eTSI with DSG shows a noticeable jerk on pull-away, particularly when the engine is warm. The 48V battery requires 2,000–3,000 km to calibrate.
Rear lights mist up internally or show visible water droplets. Leaking seals or micro-cracks in the plastic housing.
Reports & Tests
The fourth Leon generation is the most reliable of the range and shows hardly any mechanical defects at the roadworthiness inspection. Complaints are limited to occasional issues with driver assistance systems and DSG clutch comfort.
