How to carry out replacement: Spark Plug 2.0 TDI Seat Leon 3 ST
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Change Seat Leon 3 ST 1.6 TDI Spark Plug yourself – manuals and video tutorials

How to change spark plugs on SEAT LEON ST Box Body / Estate (5F8) – replacement guide

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Download your free tutorial and fix SEAT LEON ST Box Body / Estate (5F8) 2.0 TDI problems yourself Download for free 1.2 MB Spark Plug for Seat Leon 3 ST Shop now
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When to replace the Spark Plug on your SEAT LEON
Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
SEAT LEON ST Box Body / Estate (5F8) 1.2 TSI, SEAT LEON ST Box Body / Estate (5F8) 1.2 TSI, SEAT LEON ST Box Body / Estate (5F8) 1.4 TSI … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Spark Plug for LEON ST Box Body / Estate (5F8) and other SEAT models
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Tools
Replacement: spark plugs – SEAT LEON ST Box Body / Estate (5F8). List of the tools you'll need:
Electronic spray
High-temperature anti-seize lubricant
Torque wrench
Drive socket # 10
Spark plug socket # 16
Ratchet wrench
Fender cover
Buy tools
Replacement: spark plugs – SEAT LEON ST Box Body / Estate (5F8). Tip from AUTODOC:
  • The replacement procedure is the same for all spark plugs.
  • Please note: all work on the car – SEAT LEON ST Box Body / Estate (5F8) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
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    Unscrew the fasteners and disconnect the ground wires from the ignition coils. Use a drive socket #10. Use a ratchet wrench.
  2. Step 4
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    Unplug the connectors from the ignition coils.
  3. Step 5
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    Unscrew the fasteners of the ignition coils. Use a drive socket #10. Use a ratchet wrench.
  4. Step 6
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    Remove the fastening bolts.
  5. Step 7
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    Take out the ignition coils from the spark plug wells.
  6. Step 8
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    Clean dirt, dust and debris from inside the spark plug wells.
  7. Step 9
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    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  8. Step 10
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    Take out the spark plugs.
  9. Step 11
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    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  10. Step 12
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    Install the new spark plugs into their mounting seats.
    Replacement: spark plugs – SEAT LEON ST Box Body / Estate (5F8). AUTODOC experts recommend:
    Lower the spark plugs into the wells carefully, making sure not to damage the electrode gap.
  11. Step 13
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    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 28 nm torque.
    Replacement: spark plugs – SEAT LEON ST Box Body / Estate (5F8). AUTODOC recommends:
    Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
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