Mercedes-Benz S500 Ignition Coil Replacement Costs

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Ignition Coil Replacement Service

How much does a Ignition Coil Replacement cost?

On average, the cost for a Mercedes-Benz S500 Ignition Coil Replacement is $717 with $577 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1995 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$3235.08	Shop/Dealer Price$3988.69 - $6225.40
2004 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1313.71	Shop/Dealer Price$1605.52 - $2473.01
2003 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1313.71	Shop/Dealer Price$1605.57 - $2473.09
1994 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$3219.76	Shop/Dealer Price$3968.18 - $6201.01
1998 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$2387.23	Shop/Dealer Price$2953.37 - $4638.67
1996 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$2489.42	Shop/Dealer Price$3055.68 - $4741.07
1997 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$2387.23	Shop/Dealer Price$2950.82 - $4634.21
2006 Mercedes-Benz S500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1313.71	Shop/Dealer Price$1605.56 - $2473.09

Show example Mercedes-Benz S500 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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Chuck

4 years of experience

271 reviews

Chuck

4 years of experience

by Chima Oriji

S500 2004 - Serpentine/Drive Belt - Mesquite, TX

Wonderful and Very Prompt

Kevin

20 years of experience

478 reviews

Kevin

20 years of experience

by James Crawford

S500 2004 - ABS Light is on - Atlanta, GA

Great very experienced

Bryant

8 years of experience

568 reviews

Bryant

8 years of experience

by lucky hall

S500 2006 - Radiator Hose - Indianapolis, IN

Bryant was on time, very professional, courteous, and explained all procedures that he would perform during the repair. He all mentioned other areas on my vehicle that may need attention in the future. I was very pleased and would recommend him to others for repairs. 5 Stars and more. I had to leave to attend a meeting and recommended your services to my meeting attendees. Thank you.

Theodore

10 years of experience

1656 reviews

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Theodore

10 years of experience

Request Theodore

by Daniel Thygesen

S500 2002 - Car does not shift from park to drive - Bellevue, WA

Experience was great. Really appreciate the help.

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