Mercedes-Benz S550 Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Service

How much does a Ignition Coil Replacement cost?

On average, the cost for a Mercedes-Benz S550 Ignition Coil Replacement is $203 with $89 for parts and $114 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 Mercedes-Benz S550V8-4.7L TurboService typeIgnition Coil ReplacementEstimate$315.11Shop/Dealer Price$371.39 - $513.23
2015 Mercedes-Benz S550V8-4.7L TurboService typeIgnition Coil ReplacementEstimate$291.11Shop/Dealer Price$347.41 - $489.27
2016 Mercedes-Benz S550V8-4.7L TurboService typeIgnition Coil ReplacementEstimate$291.11Shop/Dealer Price$347.41 - $489.26
2008 Mercedes-Benz S550V8-5.5LService typeIgnition Coil ReplacementEstimate$321.15Shop/Dealer Price$393.93 - $565.04
2012 Mercedes-Benz S550V8-4.7L TurboService typeIgnition Coil ReplacementEstimate$291.11Shop/Dealer Price$347.43 - $489.30
2017 Mercedes-Benz S550V8-4.7L TurboService typeIgnition Coil ReplacementEstimate$291.11Shop/Dealer Price$347.41 - $489.26
2011 Mercedes-Benz S550V8-5.5LService typeIgnition Coil ReplacementEstimate$327.15Shop/Dealer Price$399.69 - $570.62
2009 Mercedes-Benz S550V8-5.5LService typeIgnition Coil ReplacementEstimate$327.15Shop/Dealer Price$400.47 - $571.99
Show example Mercedes-Benz S550 Ignition Coil Replacement prices

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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Excellent Rating

(185)

Rating Summary
167
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8
167
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Brent

8 years of experience
54 reviews
Brent
8 years of experience
Mercedes-Benz S550 V8-5.5L - Ignition Coil - Atlanta, Georgia
Great! Very pleasant and professional

Ramon

7 years of experience
94 reviews
Ramon
7 years of experience
Mercedes-Benz S550 V8-4.7L Turbo - Ignition Coil - Los Angeles, California
Very well.

Robert

11 years of experience
20 reviews
Robert
11 years of experience
Mercedes-Benz S550 V8-5.5L - Auxiliary Battery Replacement - Pasadena, California
Great guy

Enrique

21 years of experience
244 reviews
Enrique
21 years of experience
Mercedes-Benz S550 V8-5.5L - Check Engine Light is on - Davenport, Florida
Enriques was very knowledgeable and professional. He arrived a little early and explained everything I asked him about my vehicle. I would ask for him again.

Excellent Rating

(185)

Rating Summary
167
7
1
2
8
167
7
1
2
8
Number of Mercedes-Benz S550 services completed
2035+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
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