Mercedes-Benz ML500 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 ML500 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
2003 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1323.62	Shop/Dealer Price$1618.83 - $2488.87
2006 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1299.11	Shop/Dealer Price$1590.60 - $2457.85
2005 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1313.71	Shop/Dealer Price$1605.57 - $2473.09
2002 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1386.70	Shop/Dealer Price$1680.19 - $2548.93
2004 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1313.71	Shop/Dealer Price$1608.40 - $2478.05
2007 Mercedes-Benz ML500V8-5.0L	Service typeIgnition Coil Replacement	Estimate$1299.11	Shop/Dealer Price$1590.89 - $2458.35

Show example Mercedes-Benz ML500 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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Richard

12 years of experience

450 reviews

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Richard

12 years of experience

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by Joe

Mercedes-Benz ML500 V8-5.0L - 100,000 Miles Maintenance Service - Houston, Texas

I've used Richard on several repairs for all my SUV's and does a great job from my Mercedes to the BMW.

Raymond

28 years of experience

280 reviews

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Raymond

28 years of experience

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by Kathryn

Mercedes-Benz ML500 V8-5.0L - Oil Change - Apple Valley, California

Raymond is a great mechanic. I’m divorced and I have several cars so having a mechanic that I can trust makes all the difference in the world. I definitely have recommend him and I will keep recommending him

Robert

32 years of experience

646 reviews

Robert

32 years of experience

by bill

Mercedes-Benz ML500 V8-5.0L - oil cooler adapter housing orings - Los Gatos, California

It works, which is why we keep using it.

Peter

29 years of experience

592 reviews

Peter

29 years of experience

by Roy

Mercedes-Benz ML500 V8-5.0L - Electric Problems - Pacific Palisades, California

Great service and Peter took the time to explain in detail what he had done, what needed to be done and how much it would cost. Very knowledgeable and honest. Will definitely use him again ... and again! Thanks.

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