When to replace the Spark Plug on your AUDI A3
Recommended replacement interval for the part category Spark plug : 6 year / 60000 km
Important!
This replacement procedure can be used for:
AUDI A3 Saloon (8VS, 8VM) 1.4 TFSI Flex, AUDI A3 Saloon (8VS, 8VM) 1.4 TSI, AUDI A3 Saloon (8VS, 8VM) 1.2 TFSI, AUDI A3 Saloon (8VS, 8VM) 1.4 TFSI, AUDI A3 Saloon (8VS, 8VM) 1.4 TFSI, AUDI A3 Saloon (8VS, 8VM) 1.2 TFSI, AUDI A3 Saloon (8VS, 8VM) 1.4 TFSI 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

Tools
Replacement: spark plugs – AUDI A3 Limousine (8VS). 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
Replacement: spark plugs – AUDI A3 Limousine (8VS). Tip from AUTODOC:
  • The replacement procedure is the same for all spark plugs.
  • Please note: all work on the car – AUDI A3 Limousine (8VS) – 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
    How to remove AUDI A3 1.4 TFSI 2017 Spark Plug - online easy-to-follow instructions
    Take out the ignition coils from the spark plug wells.
  6. Step 8
    How to replace Spark Plug on AUDI A3 Saloon (8VS, 8VM) 2018: download PDF manuals and video instructions
    Clean dirt, dust and debris from inside the spark plug wells.
  7. Step 9
    How hard is it to do yourself: Spark Plug replacement on Audi A3 Saloon 2.0 TDI 2019 - download illustrated guide
    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 – AUDI A3 Limousine (8VS). AUTODOC experts recommend:
    Lower the spark plugs into the wells carefully, making sure not to damage the electrode gap.
  11. Step 13
    Replacing Spark Plug on Audi A3 Saloon 2023 2.0 TDI by yourself
    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 – AUDI A3 Limousine (8VS). 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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DIY AUDI A3 Saloon (8VS, 8VM) Spark Plug replacement - online guide
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