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How to change spark plugs on VOLVO C70 I Convertible (873) – replacement guide
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Recommended replacement interval for the part category Spark plug : 18 month / 30000 km
Important!
This replacement procedure can be used for:
VOLVO C70 I Convertible (873) 2.0, VOLVO C70 I Convertible (873) 2.0 T, VOLVO C70 I Convertible (873) T5, VOLVO C70 I Convertible (873) 2.4 T, VOLVO C70 I Convertible (873) 2.0 T, VOLVO C70 I Convertible (873) 2.4 T, VOLVO C70 I Convertible (873) T5 … View more
The steps may slightly vary depending on the car design.
VOLVO C70 I Convertible (873) 2.0, VOLVO C70 I Convertible (873) 2.0 T, VOLVO C70 I Convertible (873) T5, VOLVO C70 I Convertible (873) 2.4 T, VOLVO C70 I Convertible (873) 2.0 T, VOLVO C70 I Convertible (873) 2.4 T, VOLVO C70 I Convertible (873) T5 … 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 C70 I Convertible (873) and other VOLVO models
Spark plug
Alternative products

Electronic spray
High-temperature anti-seize lubricant
Drive socket # 7
Drive socket # 10
Torx bit T20
Spark plug socket # 16
Ratchet wrench
Torque wrench
Flat screwdriver
Microfibre towel
Fender cover
Replacement: spark plugs – VOLVO C70 I Convertible. AUTODOC recommends:
- The replacement procedure is the same for all spark plugs.
- All work should be done with the engine stopped.
Replacement: spark plugs – VOLVO C70 I Convertible. Recommended sequence of steps:
- Step 1Open the hood.Step 2Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.Step 3Unscrew the engine cover fastener. Use Torx T20. Use a ratchet wrench.
- Step 4Remove the engine cover.Replacement: spark plugs – VOLVO C70 I Convertible. Tip:Raise the engine cover, holding it on two sides simultaneously.
- Step 5Unplug the connectors from the ignition coils.
- Step 6Disconnect the air intake pipe fastening. Use a drive socket #10. Use a ratchet wrench.
- Step 7Detach the air intake hose clamp. Use a drive socket #7. Use a ratchet wrench.
- Step 8Remove the air intake pipe.
- Step 9Cover the air intake hose with a microfibre towel to prevent dust and dirt from getting into the system.
- Step 10Unscrew the ignition coil bracket. Use a drive socket #10.
- Step 11Take out the ignition coil from the spark plug well.Replacement: spark plugs – VOLVO C70 I Convertible. AUTODOC experts recommend:Remember the sequence of steps for ignition coil demounting.
- Step 12Clean dirt, dust and debris from inside the spark plug wells.
- Step 13Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
- Step 14Take out the spark plugs.
- Step 15Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs. Treat the surface of the terminals of the new spark plugs. Use high-temperature grease.
- Step 16Install the new spark plugs into their mounting seats.
- Step 17Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 27 nm torque.Replacement: spark plugs – VOLVO C70 I Convertible. Tip from AUTODOC experts: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.
- Step 18Treat the ignition coil tips. Use high-temperature grease. Use a flat screwdriver.
- Step 19Install the ignition coils to the spark plug wells. Make sure you hear a click indicating that it is locked in place.Replacement: spark plugs – VOLVO C70 I Convertible. Tip from AUTODOC:Follow the installation sequence.
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