Audi S4 Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Estimate for Audi S4

Audi S4 Ignition Coil Replacement costs $204 on average.

CarServiceEstimateShop/Dealer Price
2012 Audi S4V6-3.0L TurboService typeIgnition Coil ReplacementEstimate$174.63Shop/Dealer Price$230.79 - $320.53
2009 Audi S4V8-4.2LService typeIgnition Coil ReplacementEstimate$190.75Shop/Dealer Price$255.01 - $343.01
2013 Audi S4V6-3.0L TurboService typeIgnition Coil ReplacementEstimate$164.63Shop/Dealer Price$216.83 - $303.60
2005 Audi S4V8-4.2LService typeIgnition Coil ReplacementEstimate$190.75Shop/Dealer Price$254.92 - $342.85
2000 Audi S4V6-2.7L TurboService typeIgnition Coil ReplacementEstimate$511.44Shop/Dealer Price$659.26 - $976.82
2007 Audi S4V8-4.2LService typeIgnition Coil ReplacementEstimate$190.75Shop/Dealer Price$255.00 - $343.00
1994 Audi S4L5-2.2L TurboService typeIgnition Coil ReplacementEstimate$540.65Shop/Dealer Price$685.27 - $1050.04
2010 Audi S4V6-3.0L TurboService typeIgnition Coil ReplacementEstimate$169.63Shop/Dealer Price$222.43 - $309.63
Show example Audi S4 Ignition Coil Replacement prices

Ignition Coil Replacement Service

What is an ignition coil and how does it work?

An ignition coil transforms ignition voltage (12 volts) to the very high voltage pulses (20,000 volts or more) that fire the spark plugs. The number of ignition coils varies depending on car model and year of production. Older cars will have one coil covering all engine cylinders while newer cars may have a coil-on-plug type arrangement — that is every cylinder will have its own dedicated ignition coil.

Ignition Coils

When to consider replacing an ignition coil:

  • Hard starting or no start. Ignition coils are subject to heat damage and electrical overload, both of which can cause partial or total failure. If the coil is faulty, you may have difficulty starting your car or it may not start at all.
  • Misfiring, loss of power, poor acceleration. Once the car is running, a bad ignition coil can cause poor operation of the engine. Should you have misfiring or loss of power, faulty ignition coils would be among the list of causes a mechanic would investigate. The Check Engine Light will often come on with a trouble code(s) indicating which cylinders are involved.

How do mechanics replace the ignition coil?

  • The ignition is checked to assure it is in the “off” position.
  • For single coils that supply all cylinders, the coil is disconnected from either a bracket located in the engine compartment or, in some cases, is removed from within the distributor. The replacement coil is secured and all electrical connections reattached. If the distributor was removed for any reason, the timing is adjusted as required.
  • For individual coil-on-plug applications, the coil is detached from the top of the individual spark plug and replaced.
  • Once the coil is securely in place, all electrical connections are reattached, and timing adjusted as needed, the car is road tested to ensure normal operation.

Is it safe to drive with an ignition coil problem?

Yes. A malfunctioning ignition coil will cause loss of power and lower fuel efficiency but that will not present an immediate safety issue. If the coil malfunction is causing misfiring, this will allow unburned fuel to enter and permanently damage the catalytic converter from overheating.

When replacing an ignition coil keep in mind:

  • Ignition coil failure can be caused by faulty spark plugs or wires. The mechanic will inspect and may recommend replacement of those components.
  • In a coil-on-plug ignition system, if only one coil fails, you need only replace the faulty coil. Remaining functioning coils can be left in place.
  • In systems with the coil located in the distributor, it may be more cost-effective to replace the entire distributor rather than remove and replace just the coil.

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Attila

19 years of experience
814 reviews
Attila
19 years of experience
Audi S4 V6-3.0L Turbo - Brake Pads Replacement (Rear) - Morris Plains, New Jersey
Job well done, thorough and very knowledgeable about German cars.

Jose

16 years of experience
324 reviews
Jose
16 years of experience
Audi S4 V8-4.2L - Pre-purchase Car Inspection - Dania, Florida
I was happy with this service. I've never purchased a car on-line or by phone. The inspection seemed thorough and José was great for calling me and answered all questions I had. I would use the service again. Thanks

Alfred

13 years of experience
462 reviews
Alfred
13 years of experience
Audi S4 V6-3.0L Turbo - Spark Plugs - San Francisco, California
Alfred was very knowledgeable and was able to diagnose my problem and save me money.

Michael

27 years of experience
391 reviews
Michael
27 years of experience
Audi S4 L5-2.2L Turbo - Power Steering Pump - Mesa, Arizona
This was absolutely fantastic! Michael was very knowledgeable and thorough. I would absolutely recommend this service and Michael without a doubt!

Excellent Rating

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Rating Summary
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Number of Audi S4 services completed
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