Mercedes-Benz 450SL Ignition Coil Replacement at your home or office.

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Average rating from customers who
received a Ignition Coil Replacement.
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$178.34 - $188.34

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Average rating from customers who
received a Ignition Coil Replacement.
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Ignition Coil Replacement Estimate for Mercedes-Benz 450SL

Mercedes-Benz 450SL Ignition Coil Replacement costs $183 on average.

CarServiceEstimateShop/Dealer Price
1980 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$351.59 - $514.65
1976 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$351.48 - $514.47
1979 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$351.59 - $514.65
1975 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$286.69Shop/Dealer Price$355.33 - $517.45
1974 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$354.53 - $519.80
1977 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$349.45 - $510.91
1978 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$281.69Shop/Dealer Price$346.07 - $504.99
1973 Mercedes-Benz 450SLV8-4.5LService typeIgnition Coil ReplacementEstimate$286.69Shop/Dealer Price$354.07 - $515.25
Show example Mercedes-Benz 450SL 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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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating


YourMechanic Mercedes-Benz 450SL Service

Average Rating

4.6/5

Number of Reviews

10

Rating Summary
9
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1
9
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1

William

23 years of experience
35 reviews
William
23 years of experience
Mercedes-Benz 450SL - Electric Problems - Stockton, California
i like the way William new and how to find the problem with my car He was very knowleable about pin pointing the problems and how to fix it I thank him for his service And thank you for sending him

Frank

13 years of experience
31 reviews
Frank
13 years of experience
Mercedes-Benz 450SL - Brake Master Cylinder - Downers Grove, Illinois
he was on time ,polite ,professional.did the work quickly .work was done correctly..my car is difficult to work on.small car with no room to maneuver but he was able to get inside and get it done.

Joe

21 years of experience
85 reviews
Joe
21 years of experience
Mercedes-Benz 450SL - Brake Pads Replacement (Front) - Hurst, Texas
Great job , prompt and polite.

Vlad

12 years of experience
79 reviews
Vlad
12 years of experience
Mercedes-Benz 450SL - Smoke from engine or exhaust Inspection - Villa Park, Illinois
Thorough analysis of problem(s), good overview of how to remedy mechanical issues. First class experience all the way. Thanks, Vlad!

Excellent Rating


YourMechanic Mercedes-Benz 450SL Service

Average Rating

4.6/5

Number of Reviews

10

Rating Summary
9
0
0
0
1
9
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1
Red-stars EXCELLENT RATING ON
Number of Mercedes-Benz 450SL services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
800+
experts on our platform

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