The Cupra Leon Mk4 arrived in the UK in 2020 as the performance version of the SEAT Leon, sharing the VW Group MQB Evo platform with the Golf 8. It offered excellent value but inherited the Golf 8's software frustrations, including the MIB3 infotainment crashes and Emergency Assist false warnings.
The DQ200 7-speed DSG can develop mechatronic unit faults causing jerky gear changes, hesitation from standstill, or complete failure to engage gears. More likely on higher-mileage cars.
A frequent "binging" noise accompanied by "Travel Assist Unavailable" warnings, often caused by a faulty steering wheel sensor.
The PHEV models can sometimes refuse to enter "E-Mode" even with a full battery, or show powertrain errors.
The air conditioning compressor can fail, leading to loss of cooling. Some owners report the issue developing gradually with reduced cooling before complete failure.
On 1.5 TSI models, the turbo wastegate actuator can stick, causing boost pressure irregularities, power loss, and sluggish acceleration.