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

CarServiceEstimateShop/Dealer Price
1991 BMW 735iL6-3.5LService typeIgnition Coil ReplacementEstimate$1671.56Shop/Dealer Price$2057.00 - $3199.15
1992 BMW 735iL6-3.5LService typeIgnition Coil ReplacementEstimate$1662.55Shop/Dealer Price$2044.90 - $3184.73
1990 BMW 735iL6-3.5LService typeIgnition Coil ReplacementEstimate$1662.55Shop/Dealer Price$2044.94 - $3184.80
Show example BMW 735i 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+
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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

Chris

23 years of experience
2372 reviews
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Chris
23 years of experience
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by mark
BMW 735i L6-3.5L - Brake Master Cylinder - San Juan Capistrano, California
Chris was punctual and professional. Very efficient and knowledgeable. Work was done in the manner that I expected. Good mechanic...

Pardeep

22 years of experience
1277 reviews
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Pardeep
22 years of experience
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by Gopinath
BMW 328i L6-3.0L - Ignition Coil Replacement - San Jose, California
It is always GREAT with Pardeep Singh!

Joe

21 years of experience
126 reviews
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Joe
21 years of experience
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by John
BMW 535xi L6-3.0L Turbo - Ignition Coil Replacement - River Forest, Illinois
Joe was great. He showed up on time and went above and beyond. I highly recommend Joe

Anthony

12 years of experience
77 reviews
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Anthony
12 years of experience
Request Anthony
by Antony
BMW 528i L6-3.0L - Ignition Coil - Naperville, Illinois
Honest Review (Exceptional Service) Job completed on 4/25/21, Review on 7/28/2021 - Ran my car for 500+ miles after service and here are my comments Anthony is really really awesome, he know what he is doing. He did all the jobs perfectly and clean. Suggested me on long running issues, what could be the possible cause. Explained on the rotor brakes, BMW error codes in dashboard has been taken care, every bits and pieces of the job done well. He is go to guy. Jobs performed Ignition Coil Replacement • Battery Replacement • Valve Cover Gasket Replacement • Brake Rotor/Disc Replacement (Front)

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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