Audi S3 Spark Plug Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

customer ratings

(12)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(12)

Spark Plug Replacement Estimate for Audi S3

Audi S3 Spark Plug Replacement costs $176 on average.

CarServiceEstimateShop/Dealer Price
2016 Audi S3L4-2.0L TurboService typeSpark Plug ReplacementEstimate$205.19Shop/Dealer Price$268.99 - $381.65
2018 Audi S3L4-2.0L TurboService typeSpark Plug ReplacementEstimate$356.38Shop/Dealer Price$431.84 - $607.90
2015 Audi S3L4-2.0L TurboService typeSpark Plug ReplacementEstimate$195.19Shop/Dealer Price$255.03 - $364.72
2017 Audi S3L4-2.0L TurboService typeSpark Plug ReplacementEstimate$195.19Shop/Dealer Price$236.39 - $332.08
Show example Audi S3 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(12)

Rating Summary
11
1
0
0
0
11
1
0
0
0

Farnaz

20 years of experience
80 reviews
Farnaz
20 years of experience
Audi S3 L4-2.0L Turbo - Oil Change - Huntington Beach, California
Very good service and communication. He was on time polite and his work was clean everything you could ask for.

James

30 years of experience
812 reviews
James
30 years of experience
Audi S3 L4-2.0L Turbo - Oil Change - Longwood, Florida
Fast and professional as always

Curtis

29 years of experience
163 reviews
Curtis
29 years of experience
Audi S3 L4-2.0L Turbo - Pre-purchase Car Inspection - Evans, Georgia
Knows exactly what he is talking about when it comes to vehicles. Just needed him to do prepurchase inspection for a new vehicle acquired (Audi S3). Was able to assist me with any questions as well.

Manuel

32 years of experience
531 reviews
Manuel
32 years of experience
Audi S3 L4-2.0L Turbo - Pre-purchase Car Inspection - Costa Mesa, California
On time and great report for my pre-purchase car inspection.

Excellent Rating

(12)

Rating Summary
11
1
0
0
0
11
1
0
0
0
Number of Audi S3 services completed
132+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform

Recent articles & questions

B2108 OBD-II Trouble Code: Trunk Key Cylinder Switch Failure
B2108 trouble code means the trunk key cylinder switch has failed, often caused by faulty components in the key cylinder switch.
B1920 OBD-II Trouble Code: Air Bag Passenger Circuit Failure
B1920 means there the airbag system on the passenger side is not working properly. This is likely due to faulty wiring.
What Does Car Value Mean?
Knowing Knowing whether or not you’re getting a good car for your money is difficult because “good” is open to interpretation. You and a friend can have the same new car, yet have widely differing views of its value and...

I have a 2003 toyota camry with "check engine" light on. I was told by one mechanic at Goodyear that it is due to catalytic conve

I think what the mechanic was telling you is that there are two different ways to replace a catalytic converter. The first way is to have factory type parts installed, that will normally come with the converter, and the adjoining...

How much will body damage repairs cost to a 2013 Mazda 3 - right front door, right fender

For assessment and estimates on repairing bodywork, this task is best handled by a collision repair estimator at a reputable paint and body shop. They are trained to evaluate visible and not-so-visible damage, and the costs to repair. Contact a...

Could it be a battery problem - 2011 Volkswagen Jetta

Hello. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com