What is the importance of spark plugs for engine efficiency and what are the proper procedures for their maintenance and installation on Audi A3?

Proper operation of the spark plugs is essential to the operation of the engine even though there should be the right type of the spark plugs depending on the type of engine. When the right type is employed, and the engine is well maintained then spark plugs are not normally required in between the scheduled renewal and cleaning should only be attempted with special equipment to avoid damage. In the case of 1.6 litre DOHC engine, engine top cover has to be removed and ignition HT coils and wiring can be removed with the help of special tools or a bend welding rod. The SOHC engines with 1.6 litre capacity have spark plugs installed underneath the upper part of the inlet manifold, which complicates their reach; it is advisable to use special tools to disconnect the HT leads and unscrew the plugs. In the case of the 2.0 litre engines, the engine top cover and securing bolts are removed first and then the ignition HT coils. The spark plug recesses should be cleaned before they are removed to ensure that no dirt gets into the cylinders. Unscrewing the plugs one should make sure to hold the socket in place so as not to break the ceramic insulator. Inspection of the spark plugs can also tell about the state of the engine, and the presence of various deposits are indicative of diverse problems. The gap between the electrode of the spark plug is an important factor in efficiency and they should be altered with care without bending the electrode in the middle. Prior to installation of new plugs, the threaded connector sleeves should be clean and tight to prevent cross-threading, which can be prevented by installing a rubber hose to align them. The plugs must be tightened to the recommended torque after installation and the HT leads and ignition coils must be harnessed up again after reversing the procedure of their removal.

What tools and steps are necessary for replacing spark plugs on Audi A4?

The cylinder head(s) have the spark plugs and the equipment required to replace them usually consists of a spark plug socket to be attached to a ratchet, different extensions, and a feeler gauge to measure and adjust the gap in the spark plug. Although not a requirement, a torque wrench can be used to optimally tighten the plugs, and a normal ratchet is required to install the plug socket. In some cases, special extensions and universal joints might be needed to access some plugs, based on the model. Before installing the spark plugs, it would be a wise precaution to buy a new set of plugs, and fit them to the right gap, and change each plug separately, taking care to get the right kind to fit the particular engine. The engine should be allowed to completely cool before removal and in the process the new plugs may be checked with regard to defects and seals. The gap is confirmed with a suitable thickness gauge in between the electrodes such that it slides with minimal resistance and any cracks in the body of the plug should be recorded since it makes the plug unusable. To keep the paint dry, a fender cover or an old blanket can be used to cover the fender. All cylinders produce one centrally fitted spark plug with ignition coils placed immediately above them and these are supposed to be taken off before touching the plugs. Compressed air should be used to wipe dirt off the spark plug area should it be available. In order to insert the plug, locate the spark plug socket on top of the plug and rotate it to the opposite direction. It is best to lightly apply anti-seize compound to the threads of the new plugs to avoid the likelihood of them seizing in the aluminum cylinder head. To prevent cross-threading, one may put on the end of the spark plug a snugly fitting piece of a rubber hose, which serves as a universal joint to assist in fitting it into the hole. The cross-threading will cause the hose to slip hence no thread will be damaged. Once all of the spark plugs are installed and tightened to the recommended torque, repeat the process and ensure the remaining plugs are done.

Genuine Audi Spark Plug

Ignition Spark Plug

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30 Spark Plugs found

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Audi Spark Plug Part Number: 101-905-615-A
$16.35 MSRP: $21.79
You Save: $5.44 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 101-000-054-AC
Fits the following Audi Models:
- A6 Quattro | 2000-2006 | Base | 8 Cyl 4.2 L GAS
- A8 Quattro | 2004-2006 | Base, L | 8 Cyl 4.2 L GAS
- Allroad Quattro | 2004-2005 | Base | 8 Cyl 4.2 L GAS
- S4 | 2004-2009 | Avant, Base, Cabriolet | 8 Cyl 4.2 L GAS
- S6 | 2002-2003 | Avant | 8 Cyl 4.2 L GAS
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Audi Spark Plug Part Number: 04E-905-612-C
$14.85 MSRP: $19.80
You Save: $4.95 (25%)
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Product Specifications
- Replaces: 04E-905-612, 04E-905-612-E
Fits the following Audi Models:
- A3 Sportback e-tron | 2016-2018 | Premium, Premium Plus, Prestige | 4 Cyl 1.4 L PLUG-IN HYBRID EV-GAS (PHEV)
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Audi Spark Plug Part Number: 06H-905-611
$16.35 MSRP: $21.79
You Save: $5.44 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: 06H-905-601-A
Fits the following Audi Models:
- A3 | 2008-2013 | Base | 4 Cyl 2.0 L GAS
- A3 Quattro | 2009-2013 | Base | 4 Cyl 2.0 L GAS
- A4 | 2009-2015 | Base, Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- A4 Quattro | 2009-2015 | Avant, Base, Premium, Premium Plus, Prestige | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS
- A5 | 2010-2011 | Cabriolet | 4 Cyl 2.0 L GAS
- A5 Quattro | 2010-2011 | Cabriolet | 4 Cyl 2.0 L GAS
- A6 | 2012-2015 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
- A6 Quattro | 2013-2015 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
- Q3 | 2015 | Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- Q3 Quattro | 2015 | Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi Spark Plug Part Number: 06K-905-601-D
$16.49 MSRP: $21.97
You Save: $5.48 (25%)
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Fits the following Audi Models:
- Q5 | 2018-2020 | Premium, Premium Plus, Prestige, Titanium Premium, Titanium Premium Plus, Titanium Prestige | 4 Cyl 2.0 L GAS
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Audi Spark Plug Part Number: 06Q-905-611-A
$16.35 MSRP: $21.79
You Save: $5.44 (25%)
Ships in 1-2 Business Days
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Fits the following Audi Models:
- A3 | 2022-2024 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi Spark Plug Part Number: 101-905-606-A
$16.35 MSRP: $21.79
You Save: $5.44 (25%)
Ships in 1-2 Business Days
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Fits the following Audi Models:
- A3 Quattro | 2006-2009 | Base | 6 Cyl 3.2 L GAS
- TT Quattro | 2008-2009 | Base | 6 Cyl 3.2 L GAS
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Audi Spark Plug Part Number: 101-905-611-A
$15.36 MSRP: $20.49
You Save: $5.13 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 101-905-631-F
Fits the following Audi Models:
- A4 Quattro | 2009 | Base | 6 Cyl 3.2 L GAS
- A5 Quattro | 2008-2010 | Base | 6 Cyl 3.2 L GAS
- A6 | 2009-2011 | Base | 6 Cyl 3.2 L GAS
- Q5 | 2009-2012 | Premium, Premium Plus, Prestige | 6 Cyl 3.2 L GAS
- S5 | 2010-2012 | Cabriolet | 6 Cyl 3.0 L GAS
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Audi Spark Plug Part Number: 101-905-621-B
$18.36 MSRP: $24.48
You Save: $6.12 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 101-905-621-A
Fits the following Audi Models:
- A6 Quattro | 2010-2011, 2007-2008 | Base | 8 Cyl 4.2 L GAS
- A8 Quattro | 2007-2012 | Base, L | 8 Cyl 4.2 L GAS
- Q7 | 2007-2010 | Base, Premium, Prestige | 8 Cyl 4.2 L GAS
- S5 | 2008-2012 | Base | 8 Cyl 4.2 L GAS
- S6 | 2007-2011 | Base | 10 Cyl 5.2 L GAS
- S8 | 2007-2009 | Base | 10 Cyl 5.2 L GAS
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Audi Spark Plug Part Number: 101-905-611
$18.75 MSRP: $25.00
You Save: $6.25 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 101-905-610
Fits the following Audi Models:
- A4 | 2003-2005 | Cabriolet | 6 Cyl 3.0 L GAS
- A4 Quattro | 2004-2006 | Cabriolet | 6 Cyl 3.0 L GAS
- A6 | 2002-2004 | Base | 6 Cyl 3.0 L GAS
- A6 Quattro | 2002-2004 | Avant, Base | 6 Cyl 3.0 L GAS
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Audi Spark Plug Part Number: 101-905-621
$20.99 MSRP: $27.98
You Save: $6.99 (25%)
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Fits the following Audi Models:
- A4 | 2006-2008 | Base | 6 Cyl 3.2 L GAS
- A4 Quattro | 2005-2009 | Avant, Base, Cabriolet | 6 Cyl 3.2 L GAS
- A6 | 2006-2008 | Base | 6 Cyl 3.2 L GAS
- A6 Quattro | 2005-2008 | Avant, Base | 6 Cyl 3.2 L GAS
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Audi Spark Plug Part Number: 101-905-621-C
$21.74 MSRP: $28.98
You Save: $7.24 (25%)
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Fits the following Audi Models:
- R8 | 2008-2011 | Base, Spyder | 10 Cyl 5.2 L GAS, 8 Cyl 4.2 L GAS
- RS4 | 2007-2008 | Base, Cabriolet | 8 Cyl 4.2 L GAS
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Audi Spark Plug Part Number: 06K-905-601-M
$20.61 MSRP: $27.49
You Save: $6.88 (26%)
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Fits the following Audi Models:
- A8 Quattro | 2013-2018 | Base, L, L Sport | 8 Cyl 4.0 L GAS
- RS3 | 2022-2024 | Base | 5 Cyl 2.5 L GAS
- RS7 | 2016-2018 | Base, Performance | 8 Cyl 4.0 L GAS
- S6 | 2013-2018 | Base, Premium Plus, Prestige | 8 Cyl 4.0 L GAS
- S7 | 2016-2018 | Base, Premium Plus, Prestige | 8 Cyl 4.0 L GAS
- S8 | 2013-2018 | Base, Plus | 8 Cyl 4.0 L GAS
- TT RS Quattro | 2018-2021 | Base | 5 Cyl 2.5 L GAS
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Audi Spark Plug Part Number: 06K-905-611-C
$11.52 MSRP: $15.00
You Save: $3.48 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: 06K-905-601-B
Fits the following Audi Models:
- A3 | 2015-2020 | Premium, Premium Plus, Prestige, Titanium | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- A3 Quattro | 2015-2020 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- S3 | 2015-2020 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
- TT Quattro | 2016-2018 | Base | 4 Cyl 2.0 L GAS
- TTS Quattro | 2016-2018 | Base | 4 Cyl 2.0 L GAS
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Audi Spark Plug Part Number: 079-905-620
$23.96 MSRP: $31.95
You Save: $7.99 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 101-905-640-D
Fits the following Audi Models:
- A6 Quattro | 2010-2011, 2007-2008 | Base | 8 Cyl 4.2 L GAS
- A8 Quattro | 2008-2012 | Base, L | 8 Cyl 4.2 L GAS
- Q7 | 2010 | Prestige | 8 Cyl 4.2 L GAS
- R8 | 2010-2012 | Base, Spyder | 8 Cyl 4.2 L GAS
- S5 | 2008-2012 | Base | 8 Cyl 4.2 L GAS
- S6 | 2007-2011 | Base | 10 Cyl 5.2 L GAS
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Audi Spark Plug Part Number: 101-905-622-A
$22.91 MSRP: $30.54
You Save: $7.63 (25%)
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Fits the following Audi Models:
- A8 Quattro | 2012-2016 | L W12 | 12 Cyl 6.3 L GAS
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Audi Spark Plug Part Number: 079-905-626-L
$24.86 MSRP: $33.15
You Save: $8.29 (26%)
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Product Specifications
- Replaces: 079-905-626-E, 079-905-626-J, 079-905-626-B, 101-905-641
Fits the following Audi Models:
- TT RS Quattro | 2012-2013 | Base | 5 Cyl 2.5 L GAS
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Audi Spark Plug Part Number: 0P2-905-601-A
$23.24 MSRP: $30.98
You Save: $7.74 (25%)
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Fits the following Audi Models:
- RS Q8 | 2020-2023 | Base | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
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Audi Spark Plug Part Number: 101-905-631-G
$24.86 MSRP: $33.15
You Save: $8.29 (26%)
Ships in 1-2 Business Days
ADD TO CART
Fits the following Audi Models:
- A6 | 2009-2011 | Base | 6 Cyl 3.2 L GAS
- A6 Quattro | 2009-2011 | Avant, Base | 6 Cyl 3.0 L GAS
- R8 | 2008-2012 | Base, GT, GT Spyder, Spyder | 10 Cyl 5.2 L GAS, 8 Cyl 4.2 L GAS
- RS4 | 2007-2008 | Base | 8 Cyl 4.2 L GAS
- RS5 | 2013-2015 | Base, Cabriolet | 8 Cyl 4.2 L GAS
- S4 | 2010-2011 | Base | 6 Cyl 3.0 L GAS
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Audi Spark Plug Part Number: 0P2-905-601
$23.99 MSRP: $31.98
You Save: $7.99 (25%)
Ships in 1-2 Business Days
ADD TO CART
Fits the following Audi Models:
- A8 Quattro | 2019-2021 | L | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
- RS6 Avant | 2021-2023 | Base | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
- RS7 Sportback | 2021-2023 | Base | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
- S8 | 2020-2023 | Base | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
- SQ7 | 2020-2023 | Premium Plus, Prestige | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
- SQ8 | 2020-2023 | Premium Plus, Prestige | 8 Cyl 4.0 L MILD HYBRID EV-GAS (MHEV)
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Audi Spark Plug Part Number: 101-905-611-G
$16.88 MSRP: $22.50
You Save: $5.62 (25%)
Ships in 1-2 Business Days
ADD TO CART
Fits the following Audi Models:
- A6 Quattro | 2009-2018 | Avant, Base, Competition, Premium, Premium Plus, Prestige, Sport | 6 Cyl 3.0 L GAS
- A7 Quattro | 2012-2018 | Base, Competition, Premium Plus, Prestige | 6 Cyl 3.0 L GAS
- A8 Quattro | 2013-2018 | Base, L | 6 Cyl 3.0 L GAS
- Q5 | 2013-2017 | Premium Plus, Prestige | 6 Cyl 3.0 L GAS
- Q7 | 2017-2019, 2011-2015 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L GAS
- S4 | 2010-2016 | Base, Premium Plus, Prestige | 6 Cyl 3.0 L GAS
- S5 | 2013-2017 | Base, Cabriolet, Premium Plus, Prestige | 6 Cyl 3.0 L GAS
- SQ5 | 2014-2017 | Premium Plus, Prestige | 6 Cyl 3.0 L GAS
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1-20 of 30 Results

Audi Spark Plug

The ignition system crucially depends on the Audi spark plug. It provides the spark needed to ignite the combustion fuel as its major role. Besides, it serves another equally important function of transferring heat into the car cooling system, acting as a heat dissipator. But then again, when this plug is dirty or worn out or even misfiring, it can significantly influence the vehicle's fuel consumption; at times, such can lead to its complete failure to start up.

It is better to choose OEM parts when it comes to the time for fixing them. Why? Because they fit perfectly well and ensure safety. For people who prefer doing their maintenance, the genuine Audi Spark Plug is quite perfect. At AudiPartsGiant.com, we specialize in genuine Audi Spark Plugs only. Also, we offer an extensive online catalog with many categories, ample stock, and secure shopping. The Audi Spark Plug is shipped directly from authorized Audi dealers at competitive prices. So trust us, and we will give you nothing but superior service. Depend on us for all your genuine parts needs, and then we will keep your automobile moving smoothly.

Audi Spark Plug Parts and Q&A

Spark Plug
06H-905-611
Q: What is the importance of spark plugs for engine efficiency and what are the proper procedures for their maintenance and installation on Audi A3?
A:
Proper operation of the spark plugs is essential to the operation of the engine even though there should be the right type of the spark plugs depending on the type of engine. When the right type is employed, and the engine is well maintained then spark plugs are not normally required in between the scheduled renewal and cleaning should only be attempted with special equipment to avoid damage. In the case of 1.6 litre DOHC engine, engine top cover has to be removed and ignition HT coils and wiring can be removed with the help of special tools or a bend welding rod. The SOHC engines with 1.6 litre capacity have spark plugs installed underneath the upper part of the inlet manifold, which complicates their reach; it is advisable to use special tools to disconnect the HT leads and unscrew the plugs. In the case of the 2.0 litre engines, the engine top cover and securing bolts are removed first and then the ignition HT coils. The spark plug recesses should be cleaned before they are removed to ensure that no dirt gets into the cylinders. Unscrewing the plugs one should make sure to hold the socket in place so as not to break the ceramic insulator. Inspection of the spark plugs can also tell about the state of the engine, and the presence of various deposits are indicative of diverse problems. The gap between the electrode of the spark plug is an important factor in efficiency and they should be altered with care without bending the electrode in the middle. Prior to installation of new plugs, the threaded connector sleeves should be clean and tight to prevent cross-threading, which can be prevented by installing a rubber hose to align them. The plugs must be tightened to the recommended torque after installation and the HT leads and ignition coils must be harnessed up again after reversing the procedure of their removal.
Spark Plug
101-905-611
Q: What tools and steps are necessary for replacing spark plugs on Audi A4?
A:
The cylinder head(s) have the spark plugs and the equipment required to replace them usually consists of a spark plug socket to be attached to a ratchet, different extensions, and a feeler gauge to measure and adjust the gap in the spark plug. Although not a requirement, a torque wrench can be used to optimally tighten the plugs, and a normal ratchet is required to install the plug socket. In some cases, special extensions and universal joints might be needed to access some plugs, based on the model. Before installing the spark plugs, it would be a wise precaution to buy a new set of plugs, and fit them to the right gap, and change each plug separately, taking care to get the right kind to fit the particular engine. The engine should be allowed to completely cool before removal and in the process the new plugs may be checked with regard to defects and seals. The gap is confirmed with a suitable thickness gauge in between the electrodes such that it slides with minimal resistance and any cracks in the body of the plug should be recorded since it makes the plug unusable. To keep the paint dry, a fender cover or an old blanket can be used to cover the fender. All cylinders produce one centrally fitted spark plug with ignition coils placed immediately above them and these are supposed to be taken off before touching the plugs. Compressed air should be used to wipe dirt off the spark plug area should it be available. In order to insert the plug, locate the spark plug socket on top of the plug and rotate it to the opposite direction. It is best to lightly apply anti-seize compound to the threads of the new plugs to avoid the likelihood of them seizing in the aluminum cylinder head. To prevent cross-threading, one may put on the end of the spark plug a snugly fitting piece of a rubber hose, which serves as a universal joint to assist in fitting it into the hole. The cross-threading will cause the hose to slip hence no thread will be damaged. Once all of the spark plugs are installed and tightened to the recommended torque, repeat the process and ensure the remaining plugs are done.