What is the importance of spark plugs for engine efficiency and what steps should be followed for their maintenance and replacement on Volvo S40?

The correct functioning of spark plugs is critical to the efficiency of the engines and it is critical that the correct plugs are fitted. If the correct type is used, and the engine is in good condition, spark plugs usually need no attention between scheduled periods of renewal, and cleaning should only be attempted by the use of special equipment to avoid damage. Removal and refitting of spark plugs requires a spark plug socket with rubber sleeve to protect it and some feeler blades to check the electrode gap and ideally a torque wrench to provide the proper tension of the spark plugs. For 1.8 and 2.0 litre models, start by opening the bonnet and removing the plastic cover to access the plugs and identify the ignition coils, then remove them. For 2.4 litre models, remove the air intake hose, raise the upper intake manifold and remove the timing belt upper cover prior to accessing the ignition coils. It is advisable that when removing the spark plug that the recesses should be cleaned to prevent any dirt or water from getting into the cylinders. Unscrew the plugs carefully and be on the lookout for any signs of wear and damage, and check each plug for signs of engine condition from the type of deposits found. When renewing plugs, it is important to check for any faults and there is also the matter of the electrode gap which has a significant effect on the efficiency of the spark. Before installation, make sure that the plugs are clean and the threaded connector sleeves are tight, using copper-based grease on the threads. Installing Plugs Carefully to Avoid Cross-Threading Tighten to the Given Torque Install the Plugs Refitting Ignition Coils Make sure to reverse all the steps for refitting it.

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10 Spark Plugs found

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Volvo Spark Plug Part Number: 8692071
$66.36 MSRP: $99.70
You Save: $33.34 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- XC90 | 2003-2006 | 2.5T, Base | 5 Cyl 2.5 L GAS
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Volvo Spark Plug Part Number: 8692072
$66.36 MSRP: $99.70
You Save: $33.34 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- XC90 | 2003-2005 | T6 | 6 Cyl 2.9 L GAS
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Volvo Spark Plug Part Number: 30751806
$68.86 MSRP: $103.48
You Save: $34.62 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- C70 | 2006-2013 | T5 | 5 Cyl 2.5 L GAS
- S40 | 2004-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
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Volvo Spark Plug Part Number: 31312691
$68.86 MSRP: $103.48
You Save: $34.62 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- S60 | 2012 | T5 | 5 Cyl 2.5 L GAS
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Volvo Spark Plug Part Number: 31361653
$68.86 MSRP: $103.48
You Save: $34.62 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; Spark Plug
Fits the following Volvo Models:
- S60 | 2013-2016 | T5, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- S60 Cross Country | 2016 | T5 Platinum | 5 Cyl 2.5 L GAS
- V60 | 2015-2016 | T5, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- V60 Cross Country | 2015-2016 | T5, T5 Platinum | 5 Cyl 2.5 L GAS
- XC60 | 2015-2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
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Volvo Spark Plug Part Number: 32290011
$74.75 MSRP: $112.32
You Save: $37.57 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; Spark Plug
- Replaces: 31380014, 31673604
Fits the following Volvo Models:
- S60 | 2015-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, Polestar, Recharge R-Design, T5, T5 Dynamic, T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier, T5 Momentum, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design, T5 R-Design Special Edition, T6, T6 Inscription, T6 Momentum, T6 Platinum, T6 Premier Plus, T6 R-Design, T6 R-Design Platinum, T8 Inscription, T8 Polestar, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- S60 Cross Country | 2017-2018 | T5 | 4 Cyl 2.0 L GAS
- S80 | 2015-2016 | T5, T5 Platinum | 4 Cyl 2.0 L GAS
- S90 | 2017-2023 | B6 Inscription, B6 Momentum, B6 Plus, B6 R-Design, B6 Ultimate, T5 Inscription, T5 Momentum, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Inscription, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 | 2015-2023 | Polestar, T5, T5 Dynamic, T5 Inscription, T5 Momentum, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T6 R-Design Platinum, T8 Polestar, T8 Recharge Polestar | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 Cross Country | 2020-2023, 2017-2018 | B5 Plus, B5 Ultimate, T5, T5 Platinum | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- V90 | 2018-2021 | T5 Inscription, T5 R-Design, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2017-2023 | B6, B6 Plus, B6 Ultimate, T5, T6, T6 Ocean Race | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC40 | 2019-2023 | B4 Plus, B4 Ultimate, B5 Core, B5 Plus, B5 Ultimate, T4 Inscription, T4 Momentum, T4 R-Design, T5 Inscription, T5 Momentum, T5 R-Design | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC60 | 2015-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, B6 Inscription, B6 R-Design, B6 Ultimate, T5, T5 Dynamic, T5 Inscription, T5 Momentum, T5 Platinum, T5 Premier, T5 R-Design, T6, T6 Dynamic, T6 Inscription, T6 Momentum, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T8 Inscription, T8 Momentum, T8 Polestar, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Spark Plug Part Number: 30731383
$84.00 MSRP: $126.21
You Save: $42.21 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- S80 | 2007-2010 | V8 | 8 Cyl 4.4 L GAS
- XC90 | 2005-2011 | V8, V8 Ocean Race, V8 Sport | 8 Cyl 4.4 L GAS
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Volvo Spark Plug Part Number: 30751805
$84.00 MSRP: $126.21
You Save: $42.21 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- S80 | 2008-2010 | T6 | 6 Cyl 3.0 L GAS
- XC60 | 2010 | T6, T6 R-Design | 6 Cyl 3.0 L GAS
- XC70 | 2008-2011 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Volvo Spark Plug Part Number: 31216183
$84.00 MSRP: $126.21
You Save: $42.21 (34%)
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- S80 | 2007-2010 | 3.2 | 6 Cyl 3.2 L GAS
- V70 | 2008-2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC60 | 2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC90 | 2007-2010 | 3.2 | 6 Cyl 3.2 L GAS
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Volvo Spark Plug Part Number: 31286359
$84.00 MSRP: $126.21
You Save: $42.21 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Spark Plug Kit; High Ignitability Spark Plug; Spark Plug
Fits the following Volvo Models:
- S60 | 2011-2016 | T6, T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- S80 | 2011-2015 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- V60 | 2015-2016 | T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- XC60 | 2011-2016 | 3.2, 3.2 R-Design, T6, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- XC70 | 2012-2015 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- XC90 | 2011-2014 | 3.2, 3.2 R-Design | 6 Cyl 3.2 L GAS
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Volvo Spark Plug Parts and Q&A

Spark Plug
30751806
Q: What is the importance of spark plugs for engine efficiency and what steps should be followed for their maintenance and replacement on Volvo S40?
A:
The correct functioning of spark plugs is critical to the efficiency of the engines and it is critical that the correct plugs are fitted. If the correct type is used, and the engine is in good condition, spark plugs usually need no attention between scheduled periods of renewal, and cleaning should only be attempted by the use of special equipment to avoid damage. Removal and refitting of spark plugs requires a spark plug socket with rubber sleeve to protect it and some feeler blades to check the electrode gap and ideally a torque wrench to provide the proper tension of the spark plugs. For 1.8 and 2.0 litre models, start by opening the bonnet and removing the plastic cover to access the plugs and identify the ignition coils, then remove them. For 2.4 litre models, remove the air intake hose, raise the upper intake manifold and remove the timing belt upper cover prior to accessing the ignition coils. It is advisable that when removing the spark plug that the recesses should be cleaned to prevent any dirt or water from getting into the cylinders. Unscrew the plugs carefully and be on the lookout for any signs of wear and damage, and check each plug for signs of engine condition from the type of deposits found. When renewing plugs, it is important to check for any faults and there is also the matter of the electrode gap which has a significant effect on the efficiency of the spark. Before installation, make sure that the plugs are clean and the threaded connector sleeves are tight, using copper-based grease on the threads. Installing Plugs Carefully to Avoid Cross-Threading Tighten to the Given Torque Install the Plugs Refitting Ignition Coils Make sure to reverse all the steps for refitting it.