Mercedes-Benz ML320 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 ML320 Ignition Coil Replacement is $192 with $97 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Mercedes-Benz ML320V6-3.2LService typeIgnition Coil ReplacementEstimate$308.23Shop/Dealer Price$374.04 - $532.10
2001 Mercedes-Benz ML320V6-3.2LService typeIgnition Coil ReplacementEstimate$288.23Shop/Dealer Price$354.07 - $512.15
2007 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$314.63Shop/Dealer Price$387.07 - $564.95
2009 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$314.63Shop/Dealer Price$387.03 - $564.88
2002 Mercedes-Benz ML320V6-3.2LService typeIgnition Coil ReplacementEstimate$288.23Shop/Dealer Price$354.10 - $512.20
2000 Mercedes-Benz ML320V6-3.2LService typeIgnition Coil ReplacementEstimate$288.23Shop/Dealer Price$354.07 - $512.15
2008 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$319.63Shop/Dealer Price$391.83 - $569.53
1999 Mercedes-Benz ML320V6-3.2LService typeIgnition Coil ReplacementEstimate$293.23Shop/Dealer Price$359.49 - $517.87
Show example Mercedes-Benz ML320 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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Meet some of our expert Mercedes-Benz mechanics

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Excellent Rating

(125)

Rating Summary
114
7
1
1
2
114
7
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David

16 years of experience
635 reviews
David
16 years of experience
Mercedes-Benz ML320 V6-3.2L - Spark Plugs - Sacramento, California
David arrived with a big smile, professional and business like. He arrived timely and replaced my spark plugs and did not seem to mind me observing him executing with care and skill. The plugs were indeed in need of replacement. He made a number of recommendations of needed repairs both orally and electronically. David further suggests having a diagnostic done to uncover things that aren't always visible to the naked eye. other possible concerns. Pat L.

Damian

11 years of experience
465 reviews
Damian
11 years of experience
Mercedes-Benz ML320 V6-3.2L - Door Lock Actuator Replacement (Driver Side Rear) - District Heights, Maryland
Great guy. Knows alot. Really helped me.

Andrew

15 years of experience
499 reviews
Andrew
15 years of experience
Mercedes-Benz ML320 V6-3.2L - Exhaust Gas Recirculation/EGR Valve Replacement - Portland, Oregon
Andrew was very friendly and professional. He worked quickly and resolved the service issue I requested. Thank you!

Rey

25 years of experience
103 reviews
Rey
25 years of experience
Mercedes-Benz ML320 V6-3.2L - Inspection / Diagnostics - Los Angeles, California
Thanks you so much Rey keep up the good work. I am oging to fix the all problem my onw.

Excellent Rating

(125)

Rating Summary
114
7
1
1
2
114
7
1
1
2
Number of Mercedes-Benz ML320 services completed
1375+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
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