Mercedes-Benz 300SD Ignition Coil Replacement at your home or office.

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$162.35 - $316.59

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Ignition Coil Replacement Estimate for Mercedes-Benz 300SD

Mercedes-Benz 300SD Ignition Coil Replacement costs $196 on average.

CarServiceEstimateShop/Dealer Price
1983 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$249.71Shop/Dealer Price$311.51 - $450.51
1984 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$249.71Shop/Dealer Price$311.61 - $450.69
1992 Mercedes-Benz 300SDL6-3.4L Turbo DieselService typeIgnition Coil ReplacementEstimate$480.20Shop/Dealer Price$595.09 - $865.32
1993 Mercedes-Benz 300SDL6-3.4L Turbo DieselService typeIgnition Coil ReplacementEstimate$471.70Shop/Dealer Price$593.73 - $869.32
1981 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$249.71Shop/Dealer Price$309.47 - $446.95
1980 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$244.71Shop/Dealer Price$302.27 - $438.09
1979 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$254.71Shop/Dealer Price$313.83 - $450.82
1982 Mercedes-Benz 300SDL5-3.0L Turbo DieselService typeIgnition Coil ReplacementEstimate$254.71Shop/Dealer Price$314.10 - $451.29
Show example Mercedes-Benz 300SD 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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Excellent Rating

(7)

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Bacle

16 years of experience
60 reviews
Bacle
16 years of experience
Mercedes-Benz 300SD - Brake Pads Replacement (Front) - Mountain View, California
He will fix your problem no matter how much time it takes.

Desmond

19 years of experience
29 reviews
Desmond
19 years of experience
Mercedes-Benz 300SD - Transmission Fluid Service - Seaside, California
Timely ,professional, and a great mechanic for all your automotive needs.

Trevor

21 years of experience
185 reviews
Trevor
21 years of experience
Mercedes-Benz 300SD - Alternator Belt - Encinitas, California
Trevor showed up on time and had the work completed within the estimated time. Professional and friendly. I highly recommend Your Mechanic and Trevor. This was so easy, no up charges or surprises. I will use Your Mechanic for future auto services.

Robert

30 years of experience
609 reviews
Robert
30 years of experience
Mercedes-Benz 300SD - Noise from engine or exhaust - Mountain View, California
Robert is good or even better than the other reviews. He does not only solve your problem but he ensures that your car is at its best before he leaves. He tries very hard to make your car perfect. When parts are not available he will try to make it. I regret very much not to hive him a tip when he left. It seems that Robert has a very busy schedule. Perhaps, his devotion to perfection takes extra time and make him a little bit late on schedule.

Excellent Rating

(7)

Rating Summary
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Number of Mercedes-Benz 300SD services completed
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