The Seat Leon IV (KL), introduced in 2020, is built on the Volkswagen Group's MQB Evo platform, sharing its underpinnings with the VW Golf VIII, Skoda Octavia IV, and Audi A3 8Y. Positioned as the sportier, more youthful, and often more affordable alternative to the Golf, it offers excellent driving dynamics and a spacious interior (especially in the Sportstourer estate version). While mechanically robust—particularly the highly refined 2.0 TDI EA288 evo diesel engines—the Leon IV's early production years were heavily marred by software glitches related to the MIB3 infotainment system and capacitive steering wheel controls. Recent software updates (v1896 and v1940) have largely resolved these electronic gremlins, making post-2022 models or fully updated early models highly recommendable.
The Seat Leon IV is a fundamentally excellent car let down initially by rushed software. If you are looking at the 2.0 TDI, you are looking at one of the best long-distance cruisers in its class. The EA288 evo diesel engine is highly refined, incredibly efficient, and mechanically dependable, provided it isn't suffocated by short city trips. Buying Advice: Avoid 2020-2021 models unless you have absolute proof that all software updates (MIB3 v1940) and steering wheel replacements have been performed. A 2022+ 2.0 TDI 150 PS with the DSG transmission is the sweet spot for high-mileage drivers, offering a superb blend of torque, economy, and reliability.