Audi S5 Spark Plug Replacement at your home or office.

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$150.31 - $442.86

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Spark Plug Replacement Estimate for Audi S5

Audi S5 Spark Plug Replacement costs $277 on average.

CarServiceEstimateShop/Dealer Price
2014 Audi S5V6-3.0L TurboService typeSpark Plug ReplacementEstimate$359.31Shop/Dealer Price$457.35 - $685.18
2017 Audi S5V6-3.0L TurboService typeSpark Plug ReplacementEstimate$225.63Shop/Dealer Price$272.63 - $386.99
2012 Audi S5V8-4.2LService typeSpark Plug ReplacementEstimate$723.74Shop/Dealer Price$914.23 - $1373.08
2015 Audi S5V6-3.0L TurboService typeSpark Plug ReplacementEstimate$225.63Shop/Dealer Price$294.59 - $425.43
2009 Audi S5V8-4.2LService typeSpark Plug ReplacementEstimate$714.74Shop/Dealer Price$902.97 - $1360.13
2012 Audi S5V6-3.0L TurboService typeSpark Plug ReplacementEstimate$274.71Shop/Dealer Price$343.86 - $502.43
2010 Audi S5V8-4.2LService typeSpark Plug ReplacementEstimate$723.74Shop/Dealer Price$911.00 - $1367.44
2018 Audi S5V6-3.0L TurboService typeSpark Plug ReplacementEstimate$357.34Shop/Dealer Price$430.47 - $605.33
Show example Audi S5 Spark Plug Replacement prices

Spark Plug Replacement Service

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

  • Difficulty starting your car.
  • Check engine light for a misfire code.
  • Flashing check engine light during acceleration for misfire, this can cause engine damage.
  • Reduced fuel economy and/or power.
  • Rough idle and/or unexplained engine vibration.
  • Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

  • Have the correct spark plugs on hand for your vehicle
  • Pull any diagnostic trouble codes that may be related to worn spark plugs.
  • Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
  • Install new plugs using a torque wrench.
  • Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

  • High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
  • Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
  • If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
  • It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
  • Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
  • Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

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Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating


YourMechanic Audi S5 Service

Average Rating

5/5

Number of Reviews

45

Rating Summary
43
2
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43
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Maxwell

17 years of experience
390 reviews
Maxwell
17 years of experience
Audi S5 - Spark Plugs - Cypress, Texas
Every good thing you read in the ratings here for Maxwell seems spot-on. Intelligent, engaging, expert, personable, and timely. I haven't yet had occasion to drive the car, but am comfortable that it's exactly as it should be. My near-20 year search for a mechanic I can count on looks like it's reached its end.

Charles

10 years of experience
69 reviews
Charles
10 years of experience
Audi S5 - Car Battery Replacement - Fort Lauderdale, Florida
Very good

Manuel

31 years of experience
273 reviews
Manuel
31 years of experience
Audi S5 - Pre-purchase Car Inspection - Irvine, California
Manuel was great. Showed up on time at work. Very detailed inspection report with all the things that were wrong. When I took the car back to CarMax, they confirmed that the parts needed replacement.

Travis

12 years of experience
69 reviews
Travis
12 years of experience
Audi S5 - Ignition Coil - Charlotte, North Carolina
Travis Was knowledgeable about my vehicle and did a great job.

Excellent Rating


YourMechanic Audi S5 Service

Average Rating

5/5

Number of Reviews

45

Rating Summary
43
2
0
0
0
43
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Red-stars EXCELLENT RATING ON
Number of Audi S5 services completed
495+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
600+
experts on our platform

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