Change Car Spark Plugs Seat Leon

Change Car Spark Plugs

Easy 0h45–1h30 ~75–150£
Estimated time 0h45–1h30
Estimated labour cost ~75–150£
Difficulty Easy
Vehicles
Leon I 1999-2006 17
  • 1.4 16V Petrol (AHW)
  • 1.4 16V Petrol (AXP)
  • 1.4 16V Petrol (BCA)
  • 1.6 16V Petrol (AUS)
  • 1.6 16V Petrol (AZD)
  • 1.6 16V Petrol (BCB)
  • 1.6 8V Petrol (BFQ)
  • 1.6 Petrol (APF)
  • 1.8 20V Petrol (APG)
  • 1.8 20V Turbo Petrol (AJQ)
  • 1.8 20V Turbo Petrol (APP)
  • 1.8 20V Turbo Petrol (ARY)
  • 1.8 20V Turbo Petrol (AUQ)
  • Cupra (2.8 24V) Petrol (AUE)
  • Cupra (2.8 24V) Petrol (BDE)
  • Cupra R (1.8 20V Turbo) Petrol (AMK)
  • Cupra R (1.8 20V Turbo) Petrol (BAM)
Leon II 2006-2013 17
  • 1.2 TSI Petrol (CBZB)
  • 1.4 Petrol (BXW)
  • 1.4 Petrol (CGGB)
  • 1.4 TSI Petrol (CAXC)
  • 1.6 MultiFuel Bioethanol (E85),Petrol (CMXA)
  • 1.6 Petrol (BSE)
  • 1.6 Petrol (CCSA)
  • 1.8 TFSI Petrol (BZB)
  • 1.8 TSI Petrol (CDAA)
  • 2.0 FSi Petrol (BLR)
  • 2.0 FSi Petrol (BVY)
  • 2.0 TFSI Cupra Petrol (BWJ)
  • 2.0 TFSI FR Petrol (BWA)
  • 2.0 TFSI FR Petrol (BWA1)
  • 2.0 TSI Cupra Petrol (CDLD)
  • 2.0 TSI Cupra R Petrol (CDLA)
  • 2.0 TSI FR Petrol (CCZB)
Leon III 2013-2020 26
  • 1.0 TSI Petrol (CHZD)
  • 1.0 TSI Petrol (DKLB)
  • 1.0 TSI Petrol (DKRF)
  • 1.2 TSI Petrol (CJZA)
  • 1.2 TSI Petrol (CJZB)
  • 1.2 TSI Petrol (CYVA)
  • 1.2 TSI Petrol (CYVB)
  • 1.4 TSI Petrol (CHPA)
  • 1.4 TSI Petrol (CMBA)
  • 1.4 TSI Petrol (CXSA)
  • 1.4 TSI Petrol (CZCA)
  • 1.4 TSI Petrol (CZEA)
  • 1.5 TSI Petrol (DACA)
  • 1.5 TSI Petrol (DADA)
  • 1.5 TSI Petrol (DPBA)
  • 1.5 TSI Petrol (DPCA)
  • 1.8 TFSI Petrol (CJSA)
  • 1.8 TSI Petrol (CJSB)
  • 2.0 TFSI Petrol (CJXC)
  • 2.0 TFSI Petrol (CJXG)
  • 2.0 TFSI Petrol (CJXH)
  • 2.0 TFSI Petrol (DKZA)
  • 2.0 TSI Petrol (DNUC)
  • 2.0 TSI Petrol (DNUE)
  • Cupra (2.0 TFSI) Petrol (CJXA)
  • Cupra (2.0 TFSI) Petrol (CJXE)
Leon IV 2020-2025 9
  • 1.0 TSI Petrol (DLAB)
  • 1.5 eTSI 48V (MHEV),Petrol (DFYA)
  • 1.5 TSI Petrol (DPBA)
  • 1.5 TSI Petrol (DPCA)
  • 2.0 TFSI Petrol (DNFB)
  • 2.0 TFSI Petrol (DNFC)
  • 2.0 TFSI Petrol (DNNA)
  • 2.0 TFSI Petrol (DNPA)
  • e-Hybrid (1.4 TSI PHEV) Electricity,Petrol (DGEA)

What is the role of Seat Leon spark plugs?

The spark plug generates a spark at the precise moment needed to ignite the air/fuel mixture in the combustion chamber of petrol (or LPG) engines. The engine management system controls ignition timing.

When should you change your Seat Leon spark plugs?

Manufacturers provide replacement recommendations; refer to your vehicle maintenance booklet. Generally replace every 60,000 km (45,000 km for severe use). Some vehicles with long-life plugs (titanium, platinum, iridium) can go 100,000–150,000 km.

How do I know if I need to change my Seat Leon spark plugs?

Via the EOBD system (mandatory since 2001 on petrol cars), faulty spark plugs will trigger fault codes, typically P0301–P0304 (misfire, cylinders 1–4). Symptoms include: difficulty starting, misfires, reduced engine power, increased fuel consumption.

Is it difficult to change Seat Leon spark plugs?

Difficulty level 2/5: technically easy but requires specific tools (spark plug wrench, torque wrench). Key points: wait for cold engine, clean plug well with compressed air before removal, never use a dropped plug, do not grease threads, hand-tighten then torque to specification.

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View your Leon maintenance plan (keep the Leon token) →

4 models covered

Model Year Range Engines covered Fuel
Leon I 1999-2006 1999-2006 1.4 16V Petrol (AHW), 1.4 16V Petrol (AXP), 1.4 16V Petrol (BCA), 1.6 16V Petrol (AUS), 1.6 16V Petrol (AZD), 1.6 16V Petrol (BCB), 1.6 8V Petrol (BFQ), 1.6 Petrol (APF), 1.8 20V Petrol (APG), 1.8 20V Turbo Petrol (AJQ), 1.8 20V Turbo Petrol (APP), 1.8 20V Turbo Petrol (ARY), 1.… Diesel, Petrol
Leon II 2006-2013 2006-2013 1.2 TSI Petrol (CBZB), 1.4 Petrol (BXW), 1.4 Petrol (CGGB), 1.4 TSI Petrol (CAXC), 1.6 CR TDI Diesel (CAYB), 1.6 CR TDI Diesel (CAYC), 1.6 LPG LPG,Petrol (CHGA), 1.6 MultiFuel Bioethanol (E85),Petrol (CMXA), 1.6 Petrol (BSE), 1.6 Petrol (CCSA), 1.8 TFSI Petrol (BZB), 1.8 TSI Pet… Bioethanol (E85), Diesel, LPG, Petrol
Leon III 2013-2020 2013-2020 1.0 TSI Petrol (CHZD), 1.0 TSI Petrol (DKLB), 1.0 TSI Petrol (DKRF), 1.2 TSI Petrol (CJZA), 1.2 TSI Petrol (CJZB), 1.2 TSI Petrol (CYVA), 1.2 TSI Petrol (CYVB), 1.4 TGI CNG CNG,Petrol (CPWA), 1.4 TSI Petrol (CHPA), 1.4 TSI Petrol (CMBA), 1.4 TSI Petrol (CXSA), 1.4 TSI Petrol (CZ… CNG, Diesel, Petrol
Leon IV 2020-2025 2020-2025 1.0 TSI Petrol (DLAB), 1.0 TSI, -e Petrol (DLAA), 1.5 eTSI 48V (MHEV),Petrol (DFYA), 1.5 TSI Petrol (DPBA), 1.5 TSI Petrol (DPCA), 2.0 TDI Diesel (DSTB), 2.0 TDI Diesel (DSUD), 2.0 TDI Diesel (DTRD), 2.0 TDI Diesel (DTTA), 2.0 TDI Diesel (DTTC), 2.0 TFSI Petrol (DNFB), 2.0 TFSI … 48V (MHEV), Diesel, Electricity, Petrol

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View the service schedule for your Leon →