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BMW 735iL 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 BMW 735iL Ignition Coil Replacement is $255 with $115 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 BMW 735iLL6-3.5LService typeIgnition Coil ReplacementEstimate$1671.56Shop/Dealer Price$2057.00 - $3199.15
1992 BMW 735iLL6-3.5LService typeIgnition Coil ReplacementEstimate$1662.55Shop/Dealer Price$2044.90 - $3184.73
1991 BMW 735iLL6-3.5LService typeIgnition Coil ReplacementEstimate$1662.55Shop/Dealer Price$2044.94 - $3184.80
Show example BMW 735iL 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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Number of BMW Ignition Coil Replacement services completed
1782+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(162)
Rating Summary
153
2
1
1
5
153
2
1
1
5

Raul

35 years of experience
285 reviews
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Raul
35 years of experience
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by Jerry
BMW 735iL L6-3.5L - Car is overheating - Berkeley, California
One of the best guys in that profession very knowledgeable and quick very smart and business savvy. Wisdom beyond his years. He will be the guy i will want to work for me 24/7 excellent service excellent. Patience, speak truth no bull none at all just straight up guy .Good people..... Love his attitude ... The Best of the Best. Blessings

Zachary

6 years of experience
34 reviews
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Zachary
6 years of experience
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by Hector
BMW 550i V8-4.4L Turbo - Ignition Coil - Miami, Florida
Good job! Very professional and friendly 

John

33 years of experience
1126 reviews
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John
33 years of experience
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by ANDREW
BMW 645Ci V8-4.4L - Ignition Coil - Hitchcock, Texas
This guy knows his stuff. Prompt and courteous and got the jib done in a timely fashion.

Rusty

24 years of experience
567 reviews
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Rusty
24 years of experience
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by Tamara
BMW 528i L4-2.0L Turbo - Ignition Coil - Mansfield, Texas
Great service

Excellent Rating

(162)
Rating Summary
153
2
1
1
5
153
2
1
1
5
Number of BMW Ignition Coil Replacement services completed
1782+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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