When to replace the Spark Plug on your AUDI 100
Recommended replacement interval for the part category Spark plug : 3 year / 60000 km
Important!
This replacement procedure can be used for:
AUDI 100 Saloon (4A2, C4) 2.0 E 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 100 Saloon (4A2, C4) and other AUDI models
Tools
Replacement: spark plugs – AUDI 100 (4A, C4). Tools you need:
High-temperature anti-seize lubricant
Torque wrench
Spark plug socket # 21
Ratchet wrench
Pincers
Fender cover
Replacement: spark plugs – AUDI 100 (4A, C4). AUTODOC experts recommend:
  • The replacement procedure is the same for all spark plugs.
  • Please note: all work on the car – AUDI 100 (4A, C4) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the hood.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to change Spark Plug on Audi 100 C4 1990 - free PDF and video manuals
    Disconnect the spark plug wires from the spark plugs. Use pincers.
    Replacement: spark plugs – AUDI 100 (4A, C4). Tip:
    Be careful to avoid damaging spark plug wires.
  2. Step 4
    How to replace AUDI 100 Saloon (4A2, C4) 2.3 E 1991 Spark Plug - step-by-step manuals and video guides
    Clean dirt, dust and debris from inside the spark plug wells.
  3. Step 5
    Audi 100 C4 S4 2.2 Turbo quattro 1992 Spark Plug replacement: free workshop manuals
    Unscrew the spark plugs. Use the spark plug socket #21. Use a ratchet wrench.
  4. Step 6
    Changing Spark Plug on AUDI 100 Saloon (4A2, C4) 2.8 E 1993 by yourself
    Take out the spark plugs.
  5. Step 7
    How to remove AUDI 100 2.6 1994 Spark Plug - online easy-to-follow instructions
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  6. Step 8
    How to replace Spark Plug on AUDI 100 Saloon (4A2, C4) 1990: download PDF manuals and video instructions
    Install the new spark plugs into their mounting seats. Use the spark plug socket #21.
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DIY AUDI 100 Saloon (4A2, C4) Spark Plug replacement - online guide
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