Audi Q8 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Audi Q8 Spark Plug Replacement is $366 with $142 for parts and $224 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2021 Audi Q8V6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$672.80Shop/Dealer Price$784.76 - $1107.68
2019 Audi Q8V6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$516.78Shop/Dealer Price$590.52 - $805.12
2020 Audi Q8V6-3.0L Turbo HybridService typeSpark Plug ReplacementEstimate$658.38Shop/Dealer Price$767.56 - $1088.39
Show example Audi Q8 Spark Plug Replacement prices

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

(85)

Rating Summary
73
5
3
1
3
73
5
3
1
3

Jose

19 years of experience
36 reviews
Jose
19 years of experience
Audi Q8 V6-3.0L Turbo Hybrid - Brake Pads Replacement (Front) - Highland Park, Illinois
Jose was professional, courteous, reliable, and from what I can tell, a very good mechanic. I needed to replace brakes on an Audi Q8 and Jose came out and identified that the brake sensors also needed replacing. The parts were ordered and he was rescheduled within a few days. Best part is the price for the job did not change. He was concerned with doing the job correctly and making sure that my vehicle is working properly.

William

21 years of experience
129 reviews
William
21 years of experience
Audi A4 Quattro V6-2.8L - Spark Plugs - Fort Myers, Florida
William is very good. Knows what he is doing. Did a great job. He is very polite and friendly.I recommend him to any one.

Joshua

28 years of experience
709 reviews
Joshua
28 years of experience
Audi A6 Quattro V6-3.2L - Spark Plugs - Pleasant Hill, California
I wish I could give Joshua a better overall rating. The process and experience was exceptional and I would have recommended him to anyone. However the $700 I paid to repair the car didn't fix the problem. I understood and asked that Joshua think more and converse with others as to what it might be for further action. I only did not receive a followup call from him but he hasn't returned my calls all week. I'm in a business where we can do a project 98% complete, but the client always remembers the last 2%. The great experience I had and the overall professionalism I was receiving has been soured by the lack of follow-up.

Tien

24 years of experience
903 reviews
Tien
24 years of experience
Audi A4 Quattro L4-2.0L Turbo - Spark Plugs - Hayward, California
Tien did a great job and also performed a thorough inspection to show me what else my car needed done, properly illustrated with pictures of the damaged areas.

Excellent Rating

(85)

Rating Summary
73
5
3
1
3
73
5
3
1
3
Number of Audi Spark Plug Replacement services completed
935+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
800+
experts on our platform

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