How to carry out replacement: Spark Plug 1.9 CDTI 16V VAUXHALL SIGNUM
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Change VAUXHALL SIGNUM 3.0 CDTi Spark Plug yourself – manuals and video tutorials

How to change spark plugs on VAUXHALL Signum (Z03) – replacement guide

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When to replace the Spark Plug on your VAUXHALL SIGNUM
Recommended replacement interval for the part category Spark plug : 8 year / 120000 km
Important!
This replacement procedure can be used for:
VAUXHALL Signum (Z03) 1.8, VAUXHALL Signum (Z03) 1.8 … 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 Signum (Z03) and other VAUXHALL models
Alternative products
How to change Spark plug on VAUXHALL SIGNUM 1.9 CDTI 16V – step-by-step instructions for straightforward car repair Spark plug
Tools
Replacement: spark plugs – VAUXHALL SIGNUM. Tools you need:
Electronic spray
High-temperature anti-seize lubricant
Torque wrench
Spark plug socket # 16
Torx bit T40
Ratchet wrench
Crow bar
Fender cover
Buy tools
Replacement: spark plugs – VAUXHALL SIGNUM. Tip from AUTODOC:
  • The replacement procedure is the same for all spark plugs.
  • All work should be done with the engine stopped.
Replacement: spark plugs – VAUXHALL SIGNUM. Recommended sequence of steps:
  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 VAUXHALL SIGNUM 2003 - free PDF and video manuals
    Remove the engine cover.
    AUTODOC recommends:
    Replacement: spark plugs – VAUXHALL SIGNUM. Do not use excessive force when removing the part as this may damage it.
  2. Step 4
    How to replace VAUXHALL Signum (Z03) 1.9 CDTI 16V 2004 Spark Plug - step-by-step manuals and video guides
    Detach the connector from the ignition coil.
  3. Step 5
    VAUXHALL SIGNUM 3.0 V6 CDTI 2005 Spark Plug replacement: free workshop manuals
    Unscrew the ignition coil bolts. Use Torx T40. Use a ratchet wrench.
  4. Step 6
    Pry up the ignition coil. Use a crowbar.
    Step 7
    Changing Spark Plug on VAUXHALL Signum (Z03) 1.8 2006 by yourself
    Take out the ignition coil from the spark plug well.
  5. Step 8
    How to remove VAUXHALL SIGNUM 1.9 CDTI 2007 Spark Plug - online easy-to-follow instructions
    Clean dirt, dust and debris from inside the spark plug wells.
  6. Step 9
    How to replace Spark Plug on VAUXHALL Signum (Z03) 2008: download PDF manuals and video instructions
    Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
  7. Step 10
    How hard is it to do yourself: Spark Plug replacement on VAUXHALL SIGNUM 2.0 DTI 2003 - download illustrated guide
    Take out the spark plugs.
  8. Step 11
    Need to know how to renew Spark Plug on VAUXHALL SIGNUM 2004? This free workshop manual will help you to do it yourself
    Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
  9. Step 12
    Changing of Spark Plug on VAUXHALL SIGNUM 2005 won't be an issue if you follow this illustrated step-by-step guide
    Install the new spark plugs into their mounting seats.
  10. Step 13
    VAUXHALL SIGNUM 3.0 CDTi Spark Plug replacement: online guides and video tutorials
    Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 25 nm torque.
    Replacement: spark plugs – VAUXHALL SIGNUM. 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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