Seat Leon KL
Weaknesses, engine ratings and buying advice
The SEAT Leon KL (2020–present) runs on MQB evo — technically identical to Golf VIII and Audi A3 8Y, but cheaper.
Infotainment: MIB3 (2020–2022): screen crashes, rear camera failures. Much better from firmware 1804. Capacitive touch slider = design flaw.
Gearbox: DQ200 (eTSI): judder on take-off. DQ381 (Cupra): harsh downshifts from 11,800 km, codes P1735/P1736.
Suspension: TÜV 2026 flags leaking dampers and broken springs at first inspection.
PHEV: Fire risk recall (KBA 011707, 2020–2022). Check status before buying.
Diesel: AdBlue/SCR — dosing valve crystallises, engine lockout after ~1,000 km.
2026 market: Base from €15,000–20,000. Cupra €20,000–35,000.
Insider pick: 1.5 TSI manual from 2023 — mature infotainment, no DSG risk.
310 PS
Leon Cupra 310 4Drive ST · Benzin
310 hp AWD estate — insane
Legendary!149–150 PS
1.5L eTSI Benzin
3 weaknesses
Good ChoiceBody Variants
The Seat Leon KL is available as Hatchback and ST — choose your body type for specific insurance data:
Generations
Engine Overview
The Seat Leon KL is available with 14 engine variants — from 110 to 310 hp. 1 variants had engine changes — the model year is crucial.
The DSUD is an EA288 Evo with a critical point that must be known: the belt drive of the oil pump can fail in rare cases, leading to oil pressure loss and engine damage — without warning. The EGR cooler tends to develop cracks. Check the water pump condition. The DPF suffers with short-trip use. This engine demands short oil change intervals and professional inspection of the belt drive system. Not an engine for buyers who intend to neglect maintenance.
- !! EGR Cooler Crack and Coolant Loss from 120,000 km
Hairline cracks in the EGR cooler cause slow coolant loss without visible leakage. In the worst case, coolant enters the combustion chamber and causes engine damage through hydraulic lock.
Symptoms: Whitish smoke from the exhaust, coolant level drops without visible leakage, engine protection warning, judder under part-throttle load - !! Oil Bath Timing Belt for Oil Pump from 180,000 km
The oil pump timing belt runs in an oil bath and swells over time due to chemical exposure. A broken belt causes immediate oil pressure loss and severe engine damage within seconds.
Symptoms: No direct driver symptom before failure — oil pressure warning, engine stuttering under high load, metal particles in oil on late diagnosis - !! Water Pump and Overheating Risk (Early Production) from 80,000 km
On engines produced before September 2014, the water pump or its control valve can fail. Coolant temperature rises above 130°C, which can cause cylinder head damage.
Symptoms: Coolant temperature gauge rises sharply, overtemperature warning, engine protection mode active
+ 2 more engine weaknesses + vehicle weaknesses
The DSTB is a newer EA288 Evo with a twin-dosing AdBlue system for improved NOx reduction. The EGR system is complex on this engine — valves can develop soot deposits. The twin-dosing AdBlue system can build up deposits in the dosing valves that generate fault codes. Injector wear at very high mileages is a concern. Overall a technically demanding, clean diesel — reliable with correct maintenance, but more sensitive than older variants when neglected.
- !! AdBlue System Fault EA288 evo Leon KL from 60,000 km
The DSTB (EA288 evo, 110 kW) in the Leon KL uses the new SCR twin-dosing system. Faults at the AdBlue dosing valves, sensors, or SCR catalyst can lead to expensive repairs. Issues have also been reported on new vehicles.
Symptoms: AdBlue warning, engine warning light, elevated NOx emissions, vehicle will not start after warning frequency - !! EGR Valve Failure EA288 evo 110 kW Leon KL from 100,000 km
The DSTB EGR system shows the same soot problem as all EA288 variants. Despite the evo's revised design, the EGR valve remains a maintenance point, especially after 100,000 km.
Symptoms: Rough idle, fault codes P0401, engine warning light, black smoke at part throttle - !! AdBlue Crystal Formation at Twin-Dosing Lines from 80,000 km
The twin-dosing system with two AdBlue injection points is susceptible to urea crystallisation on lines and dosing valves. Leaking connections leave white deposits in the engine bay.
Symptoms: White crystalline deposits in the engine bay, AdBlue system fault message, increased AdBlue consumption or dosing error in the control unit.
+ 2 more engine weaknesses + vehicle weaknesses
The DLAA at 81 kW is the reduced-output 1.0 TSI Evo for markets with specific classification requirements — same engine base as the 85 kW Evo. The power reduction is achieved by software mapping; mechanically the engine is identically built. Advantage: a robust base engine running at lower stress levels than it is actually capable of — this benefits the turbocharger and thermal management. Maintenance guidance identical to other EA211 TSI variants.
- !! Timing Belt Maintenance Underestimated from 150,000 km
The EA211 uses a timing belt instead of a chain. Many owners underestimate the replacement interval. A broken belt on this interference engine causes valve damage and total engine failure.
Symptoms: No direct warning symptom — breakage occurs without warning, engine will not start. - !! Wet Timing Belt Running in Oil Bath from 90,000 km
Like all EA211 TSI variants, the DKJA timing belt runs in an oil bath. Strictly adhering to oil change intervals is mandatory. Early replacement recommended for short-trip use.
Symptoms: Rattling, engine warning light, rough engine running - !! Leaking Injectors from 80,000 km
In the 1.0 TSI with OPF, injectors can exceed permissible leak rates, causing emissions issues. VW carried out injector replacements as a warranty measure.
Symptoms: Engine warning light, increased fuel consumption, rough idle
+ 6 more engine weaknesses + vehicle weaknesses
The DLAA at 81 kW is the reduced-output 1.0 TSI Evo for markets with specific classification requirements — same engine base as the 85 kW Evo. The power reduction is achieved by software mapping; mechanically the engine is identically built. Advantage: a robust base engine running at lower stress levels than it is actually capable of — this benefits the turbocharger and thermal management. Maintenance guidance identical to other EA211 TSI variants.
- !! Timing Belt Maintenance Underestimated from 150,000 km
The EA211 uses a timing belt instead of a chain. Many owners underestimate the replacement interval. A broken belt on this interference engine causes valve damage and total engine failure.
Symptoms: No direct warning symptom — breakage occurs without warning, engine will not start. - !! Wet Timing Belt Running in Oil Bath from 90,000 km
Like all EA211 TSI variants, the DKJA timing belt runs in an oil bath. Strictly adhering to oil change intervals is mandatory. Early replacement recommended for short-trip use.
Symptoms: Rattling, engine warning light, rough engine running - !! Leaking Injectors from 80,000 km
In the 1.0 TSI with OPF, injectors can exceed permissible leak rates, causing emissions issues. VW carried out injector replacements as a warranty measure.
Symptoms: Engine warning light, increased fuel consumption, rough idle
+ 6 more engine weaknesses + vehicle weaknesses
Plug-in hybrid drivetrain with a 1.4 TSI combustion engine and electric motor. The HV cooling circuit is under heavy thermal stress and tends to coolant loss through leaking connections — regular checking of the HV coolant level is mandatory. The 12V battery discharges during extended standstill and can cause a no-start situation — check its condition regularly. Hybrid control unit faults manifest as warning lights; sometimes harmlessly resolved by a soft reset, sometimes requiring costly control unit replacement. HV battery cell defects occur sporadically. Brakes are used little mechanically with heavy regeneration — check brake pads and discs for corrosion.
- !! HV Coolant Circuit Loss Leon PHEV from 40,000 km
The DGEB PHEV in the Tarraco (245 hp system output) shares the well-known HV coolant circuit issue of the VAG PHEV platform. A defective heat exchanger between the air conditioning and HV cooling causes coolant loss and pressure problems. Repair around €400 plus labour.
Symptoms: Red warning triangle, hybrid fault message, vehicle won't start, HV reservoir coolant level dropped - !! High-Voltage Battery Cell Failure (Service Action 93P7) from 40,000 km
Individual HV battery cells can fail prematurely, deactivating the battery. Skoda launched voluntary service action 93P7 in September 2022. Mainly affects model year 2021.
Symptoms: Sudden power loss, vehicle unresponsive to throttle for 2–3 seconds, HV battery warning, vehicle must be towed - !! 12V Battery Issues Leon e-Hybrid from 60,000 km
The DGEB PHEV in the Tarraco has no alternator. The 12V battery is supplied via the HV system. With purely electric use and no regular combustion engine operation phases, the 12V battery can run flat.
Symptoms: Keyless entry failure, starting difficulties, 12V battery warning, pre-conditioning not working
+ 3 more engine weaknesses + vehicle weaknesses
The 1.5 eTSI is the EA211 Evo with an integrated 48V mild hybrid — a modern, economical unit. The cylinder deactivation (ACT) causes noticeable vibrations at low temperatures, which are technically normal and do not require repair. Intake valves coke up with pure direct injection — walnut blasting after 80,000 km is advisable. The water pump and thermostat are the known cooling system weak points. The 48V system itself has been unremarkable so far. Overall an economical, well-balanced everyday engine with a manageable risk profile.
- !! Water pump/thermostat leak from 90,000 km
The integrated water pump with thermostat can develop leaks at higher mileage. Coolant loss requires timely replacement to prevent overheating.
Symptoms: Coolant level drops, coolant warning, damp spot on engine block - ! Intake valve carbon buildup (direct injection) from 80,000 km
The 1.5 TSI eTSI has combined injection which reduces the issue. At high mileage, deposits can still form and affect performance.
Symptoms: Slight power loss, rough idle at high mileage - ! ACT cylinder deactivation: judder and vibrations
The 1.5 TSI can judder noticeably when switching between 2- and 4-cylinder mode. Software updates mitigate but don't always fully resolve it.
Symptoms: Slight judder at constant partial load, noticeable switch between 2- and 4-cylinder mode
The 1.5 TSI Evo at 110 kW uses the Miller combustion cycle and a variable VTG turbocharger for higher efficiency. The wet timing belt in the oil bath must be changed per manufacturer specification — the interval is binding. ACT cylinder deactivation can cause slight vibrations on switching — check engine mounts for worn examples with pronounced juddering. Check software recalls and apply updates promptly. The GPF can clog with exclusively urban use; regular longer drives are an operating prerequisite. Check the PCV valve for wear, as defective PCV valves lead to elevated oil consumption. A modern, efficient engine — long-lived with proper maintenance.
- !! Wet Timing Belt Running in Oil Bath from 90,000 km
The 1.0 TSI EA211 uses a timing belt in an oil bath. Neglected oil changes significantly accelerate belt wear. Belt replacement no later than every 90,000 km or 6 years.
Symptoms: Rattling from the engine bay, engine warning light, rough idle - !! Gasoline Particulate Filter (OPF) Clogging from 80,000 km
Models with OPF tend towards filter blockage under predominantly short-trip conditions. The EGR valve can also become coked up and cause power loss.
Symptoms: Engine warning light, power reduction, increased fuel consumption - !! Turbocharger Leak from 120,000 km
Some vehicles show turbocharger leaks or failures leading to power loss and blue smoke. Typical when maintenance is neglected or the engine is shut down hot repeatedly.
Symptoms: Blue smoke on acceleration, whistling noises from the engine bay, power loss under load
+ 6 more engine weaknesses + vehicle weaknesses
EA888 Gen4 2.0 TSI — current generation with the predecessor problems largely resolved. Few known weaknesses as it is still relatively young. The water pump remains a generic wear item. Intake valves continue to coke up on purely direct-injected variants. Infotainment electronics are occasionally troublesome, but that is not an engine fault. Overall a significant step forward with a manageable risk profile — regular maintenance should be sufficient for long-term satisfaction.
- !! Water Pump Failure EA888 Gen3B Leon KL from 100,000 km
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 - !! Intake Valve Coking from OPF Direct Injection from 80,000 km
The EA888 Gen3B DNN with gasoline particulate filter tends towards intake valve coking. Cleaning every 60,000–80,000 km recommended.
Symptoms: Power loss, misfires during cold running, rough idle - ! Infotainment Restarts and Connectivity Issues Leon KL from 10,000 km
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
+ 1 more engine weaknesses + vehicle weaknesses
The 1.5 TSI Evo at 110 kW uses the Miller combustion cycle and a variable VTG turbocharger for higher efficiency. The wet timing belt in the oil bath must be changed per manufacturer specification — the interval is binding. ACT cylinder deactivation can cause slight vibrations on switching — check engine mounts for worn examples with pronounced juddering. Check software recalls and apply updates promptly. The GPF can clog with exclusively urban use; regular longer drives are an operating prerequisite. Check the PCV valve for wear, as defective PCV valves lead to elevated oil consumption. A modern, efficient engine — long-lived with proper maintenance.
- !! Wet Timing Belt Running in Oil Bath from 90,000 km
The 1.0 TSI EA211 uses a timing belt in an oil bath. Neglected oil changes significantly accelerate belt wear. Belt replacement no later than every 90,000 km or 6 years.
Symptoms: Rattling from the engine bay, engine warning light, rough idle - !! Gasoline Particulate Filter (OPF) Clogging from 80,000 km
Models with OPF tend towards filter blockage under predominantly short-trip conditions. The EGR valve can also become coked up and cause power loss.
Symptoms: Engine warning light, power reduction, increased fuel consumption - !! Turbocharger Leak from 120,000 km
Some vehicles show turbocharger leaks or failures leading to power loss and blue smoke. Typical when maintenance is neglected or the engine is shut down hot repeatedly.
Symptoms: Blue smoke on acceleration, whistling noises from the engine bay, power loss under load
+ 6 more engine weaknesses + vehicle weaknesses
The 1.5 TSI Evo at 110 kW uses the Miller combustion cycle and a variable VTG turbocharger for higher efficiency. The wet timing belt in the oil bath must be changed per manufacturer specification — the interval is binding. ACT cylinder deactivation can cause slight vibrations on switching — check engine mounts for worn examples with pronounced juddering. Check software recalls and apply updates promptly. The GPF can clog with exclusively urban use; regular longer drives are an operating prerequisite. Check the PCV valve for wear, as defective PCV valves lead to elevated oil consumption. A modern, efficient engine — long-lived with proper maintenance.
- !! Wet Timing Belt Running in Oil Bath from 90,000 km
The 1.0 TSI EA211 uses a timing belt in an oil bath. Neglected oil changes significantly accelerate belt wear. Belt replacement no later than every 90,000 km or 6 years.
Symptoms: Rattling from the engine bay, engine warning light, rough idle - !! Gasoline Particulate Filter (OPF) Clogging from 80,000 km
Models with OPF tend towards filter blockage under predominantly short-trip conditions. The EGR valve can also become coked up and cause power loss.
Symptoms: Engine warning light, power reduction, increased fuel consumption - !! Turbocharger Leak from 120,000 km
Some vehicles show turbocharger leaks or failures leading to power loss and blue smoke. Typical when maintenance is neglected or the engine is shut down hot repeatedly.
Symptoms: Blue smoke on acceleration, whistling noises from the engine bay, power loss under load
+ 6 more engine weaknesses + vehicle weaknesses
EA211 Evo 1.5 TSI without mild hybrid support — a robust, modernised engine architecture. The ACT cylinder deactivation produces vibrations during cold running, which is normal and well-known. The oil separator and crankcase ventilation are the most common leak points. Intake valves coke up through direct injection — plan regular cleaning. The gasoline particulate filter (GPF) can clog with short-trip-heavy use profiles — plan motorway runs for regeneration. The wet timing belt is present and must be changed per interval.
- !! Wet Timing Belt Running in Oil Bath from 90,000 km
Like all EA211 TSI variants, the DPBA timing belt runs in an oil bath. Strictly adhering to oil change intervals is mandatory. Early replacement recommended for short-trip use.
Symptoms: Rattling, engine warning light, rough engine running - !! Gasoline particulate filter (OPF/GPF) clogging from 80,000 km
The Leon KL with 1.5 TSI OPF tends to block when used predominantly in short-trip or city driving. Without regular motorway driving the filter cannot regenerate; manual regeneration at a workshop is often needed.
Symptoms: Engine warning light, power reduction, increased fuel consumption, cooling fan running after engine off - !! Turbocharger leak from 120,000 km
Some 1.5 TSI EA211 evo engines develop turbocharger leaks or failures causing power loss and blue smoke. Typical when maintenance is neglected or the engine is shut off frequently while hot.
Symptoms: Blue smoke under acceleration, whistling from the engine bay, power drop under load
+ 6 more engine weaknesses + vehicle weaknesses
EA888 Gen4 in the 245 hp variant — modern engine generation with a significantly improved reliability record. The water pump remains a wear item that should be addressed proactively in cooling system service. Timing chain stretch at high mileages is possible but much less frequent than on Gen1/2. Camshaft adjusters can occasionally develop noise after 100,000 km. Electronics issues occasionally resolvable by software update. Overall a modern, more maintenance-friendly unit.
- !! Timing Chain Stretch with Chain Rattle from 130,000 km
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 - !! Water Pump Failure EA888 Gen3B Leon KL from 100,000 km
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 - !! Water Pump Failure from 100,000 km
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
+ 2 more engine weaknesses + vehicle weaknesses
EA888 Gen4 in the 245 hp variant — modern engine generation with a significantly improved reliability record. The water pump remains a wear item that should be addressed proactively in cooling system service. Timing chain stretch at high mileages is possible but much less frequent than on Gen1/2. Camshaft adjusters can occasionally develop noise after 100,000 km. Electronics issues occasionally resolvable by software update. Overall a modern, more maintenance-friendly unit.
- !! Timing Chain Stretch with Chain Rattle from 130,000 km
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 - !! Water Pump Failure EA888 Gen3B Leon KL from 100,000 km
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 - !! Water Pump Failure from 100,000 km
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
+ 2 more engine weaknesses + vehicle weaknesses
EA888 Gen4 in the 228 kW all-wheel-drive top model — the latest generation with modern emissions management and mature thermal management. The water pump is the primary weak point, with known early failures from 80,000 km. Chain elongation remains a theoretical topic at very high mileages. Camshaft seals and intake valve coking from pure direct injection during extended service. Infotainment electronics occasionally erratic — a typical symptom of new platforms, usually resolvable by update. Fundamentally a mature and convincing high-performance unit.
- !! Timing chain elongation EA888 Gen3B from 140,000 km
The EA888 Gen3B in the Leon Cupra KL shares the timing chain architecture with other Gen3 engines. Chain elongation is possible from around 120,000–150,000 km. Extended oil change intervals accelerate wear significantly.
Symptoms: Metallic rattling on cold start, check engine light, cam timing fault codes in OBD, judder on pull-away - !! Water Pump Failure EA888 Gen3B Leon KL from 80,000 km
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 - ! Infotainment Restarts and Connectivity Issues Leon KL from 10,000 km
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
+ 2 more engine weaknesses + vehicle weaknesses
EA211 Evo 1.5 TSI without mild hybrid support — a robust, modernised engine architecture. The ACT cylinder deactivation produces vibrations during cold running, which is normal and well-known. The oil separator and crankcase ventilation are the most common leak points. Intake valves coke up through direct injection — plan regular cleaning. The gasoline particulate filter (GPF) can clog with short-trip-heavy use profiles — plan motorway runs for regeneration. The wet timing belt is present and must be changed per interval.
- !! Wet Timing Belt Running in Oil Bath from 90,000 km
Like all EA211 TSI variants, the DPBA timing belt runs in an oil bath. Strictly adhering to oil change intervals is mandatory. Early replacement recommended for short-trip use.
Symptoms: Rattling, engine warning light, rough engine running - !! Gasoline particulate filter (OPF/GPF) clogging from 80,000 km
The Leon KL with 1.5 TSI OPF tends to block when used predominantly in short-trip or city driving. Without regular motorway driving the filter cannot regenerate; manual regeneration at a workshop is often needed.
Symptoms: Engine warning light, power reduction, increased fuel consumption, cooling fan running after engine off - !! Turbocharger leak from 120,000 km
Some 1.5 TSI EA211 evo engines develop turbocharger leaks or failures causing power loss and blue smoke. Typical when maintenance is neglected or the engine is shut off frequently while hot.
Symptoms: Blue smoke under acceleration, whistling from the engine bay, power drop under load
+ 6 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Infotainment MIB3: Software bugs and system crashes The MIB3 infotainment system shows software bugs such as screen crashes and camera failures. Software updates fix most of the problems. Symptoms: Black screen, reversing camera non-functional, error messages for airbag or start-stop from 30,000 km | Low | |
| Reversing camera remains black 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. Symptoms: Black image when reverse gear is engaged, intermittent camera failure from 40,000 km | Low | |
| Front low-beam flagged at roadworthiness inspection Front lighting is rated as somewhat critical in TÜV reports. LED control units can fail, and headlight lenses show premature fogging. Symptoms: Low-beam flickers or fails on one side, moisture inside the headlight housing from 60,000 km | Medium |
Test Reports
AUTO BILD TÜV-Report
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.
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Known Problems and Issues +
A total of 72 weaknesses have been documented for the Seat Leon KL (2020–2026) — 60 engine-related and 12 vehicle-related. Typical issues affect Electronics, Other, Gearbox, Suspension. Considered reliable: DLAA (1.0L TSI), DPCA (1.5L TSI), DFYA (1.5L eTSI).
Leon (DSUD, 2020–2026) — Be Careful: EGR Cooler Crack and Coolant Loss, Oil Bath Timing Belt for Oil Pump, Water Pump and Overheating Risk (Early Production). Power: 116 PS.
Leon (DGEA, 2020–2026) — Be Careful: HV Coolant Circuit Loss Leon PHEV, High-Voltage Battery Cell Failure (Service Action 93P7), 12V Battery Issues Leon e-Hybrid. Power: 150 PS.
What to watch out for with the Seat Leon? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Seat Leon KL have? +
What should I look for when buying a used Seat Leon KL? +
Which engine is recommended? +
Which Seat Leon KL engine is the most reliable? +
Which Seat Leon KL engine is the most fun? +
Is the Seat Leon KL worth buying used? +
What horsepower variants are available for the Seat Leon KL? +
Last updated: February 2026 · All information without guarantee