Audi 100 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Audi 100

Audi 100 Spark Plug Replacement costs $79 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$77 to $90
Labor: $70 -$80
Parts: $7 -$10
Average Dealer price
$107 to 113
Average Shop price
$92 to 96
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
1991 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.56 - $154.71
1989 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.68 - $154.92
1994 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.05 - $142.70
1992 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.09 - $142.76
1993 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.03 - $142.66
1990 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.55 - $154.69
Show example Audi 100 Spark Plug Replacement prices

Spark Plug Replacement Service & Cost

What are the Spark Plugs all about?

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder.

Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

Spark plugs-MATROX-1

Keep in mind:

  • When the spark plugs are replaced, it is a good idea to inspect the ignition cables as well.
  • Spark plugs come in numerous ratings, and the correct rating for your vehicle should always be used.

How it's done:

  • Scan the car for codes.
  • Clean all surface areas around the spark plugs.
  • Remove spark plugs.
  • Inspect threads in engine head (where plugs are installed).
  • Perform compression test if needed.
  • Inspect ignition wires.
  • Apply anti-seize to the threads of the spark plugs.
  • Install new spark plugs.
  • If needed replace any gaskets removed.

Our recommendation:

During routine maintenance and checkups, your ignition system should always be inspected. Any time that a component of the ignition system is replaced, it’s a good idea to consider replacing the spark plugs as well. If you don’t preemptively change your spark plugs your engine will let you know by misfiring or running poorly, so schedule an inspection as soon as you notice that your engine is not performing properly.

What common symptoms indicate you may need to replace the Spark Plugs?

  • Check Engine light is on.
  • Engine misfires.
  • Poor fuel economy.
  • Vibration coming from the engine.

How important is this service?

Spark plugs are responsible for igniting the fuel that your engine uses to run. When you turn your key, a small voltage of power is sent to the ignition coil, where it is transformed into high voltage currency. This high voltage currency is sent through the ignition cables to the spark plugs. The spark plugs use the power to create a spark, which ignites the fuel, and allows the engine to function.

When the spark plugs malfunction, this spark won’t be created, and the fuel will not be ignited as it should. Your vehicle has many spark plugs, so depending on how many fail, your engine may either run poorly, or not run at all. Continuing to drive a vehicle with malfunctioning spark plugs can also cause damage to the catalytic converter.

Fast and easy Spark Plug Replacement service at your home or office.

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Robert
27 years of experience
Robert is an ace mechanic. He did a great job for me. He has all of the qualities you want in a mechanic and advisor. In the army I had a vehicle maintenance platoon the repaired vehicles in difficult field conditions. I valued a competent professional. I would have been proud to have Robert in my platoon under combat conditions.
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Alex
12 years of experience
He is very professional, and fixed the issue correctly and no issue since he fixed it
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133 reviews
Brikk
14 years of experience
Brikk was great. We asked him to change out the alternator on my sons Saab based on a noise he was hearing and also from a garage he took it to. They said the noise was the alternator and it was about to go. He did not get it done at that garage because they want over $800. Brikk listened for the noise but was not convinced it was the alternator. He said it was putting out what it was supposed to. Unfortunately on that day we were not able to produce the noise so Brikk said to contact him when its making the noise again because he would like to be sure. I don't think the noise has come back so far. Its my sons car so I have never heard it. So we are kinda waiting to see what happens but Brikk was great, informative. I like this service very much so far in the few time we have used it.
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28 reviews
Mung
17 years of experience
Friendly encounter upon initially meeting with him. He seemed very knowledgeable about the issue with my car.
1999 AUDI A4 QUATTRO - OIL IS LEAKING INTO SPARK PLUG WELL INSPECTION
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1991 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.56 - $154.71
1989 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.68 - $154.92
1994 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.05 - $142.70
1992 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.09 - $142.76
1993 Audi 100V6-2.8LService typeSpark Plug ReplacementYourMechanic Price$84.08Shop/Dealer Price$113.03 - $142.66
1990 Audi 100L5-2.3LService typeSpark Plug ReplacementYourMechanic Price$90.12Shop/Dealer Price$120.55 - $154.69
Show example Audi 100 Spark Plug Replacement prices

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