BMW 740Li xDrive Ignition Coil Replacement Costs

Car	Service	Estimate	Shop/Dealer Price
2013 BMW 740Li xDriveL6-3.0L Turbo	Service typeIgnition Coil Replacement	Estimate$641.48	Shop/Dealer Price$769.40 - $1138.99
2014 BMW 740Li xDriveL6-3.0L Turbo	Service typeIgnition Coil Replacement	Estimate$632.47	Shop/Dealer Price$757.30 - $1124.57
2015 BMW 740Li xDriveL6-3.0L Turbo	Service typeIgnition Coil Replacement	Estimate$632.47	Shop/Dealer Price$757.34 - $1124.64

Car

Service

Estimate

Shop/Dealer Price

2013 BMW 740Li xDriveL6-3.0L Turbo

Service typeIgnition Coil Replacement

Estimate$641.48

Shop/Dealer Price$769.40 - $1138.99

2014 BMW 740Li xDriveL6-3.0L Turbo

Service typeIgnition Coil Replacement

Estimate$632.47

Shop/Dealer Price$757.30 - $1124.57

2015 BMW 740Li xDriveL6-3.0L Turbo

Service typeIgnition Coil Replacement

Estimate$632.47

Shop/Dealer Price$757.34 - $1124.64

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.

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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Eduardo

13 years of experience

41 reviews

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by Mariano

BMW 740Li xDrive L6-3.0L Turbo - Pre-purchase Car Inspection - Villa Park, California

Eduardo is a top rate professional. I had him do a pre-purchase inspection on an out of state BMW 7 series that I am considering purchasing. He is very knowledgable, a great communicator and is willing to go the extra mile to ensure that I understood all aspects of this car, good or bad prior to making a decision to purchase. I will definitely use him again.

Christopher

6 years of experience

11 reviews

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by Orlando

BMW 740Li xDrive L6-3.0L Turbo - Trunk Lift Support Shocks - Sacramento, California

Punctual and professional. Christopher is a good mechanic, he explained what he’s working on and how long the work is.

Joe

1 years of experience

13 reviews

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by Chris

BMW 740Li xDrive L6-3.0L Turbo - Serpentine/Drive Belt - Norman, Oklahoma

Phenomenal mechanic and an even better person. I’ll be recommending Joe to all family and friends.

Chris

17 years of experience

419 reviews

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by Jeff

BMW 328i L6-3.0L - Ignition Coil - San Francisco, California

Chris was awesome!

BMW 740Li xDrive 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 740Li xDrive Ignition Coil Replacement is $383 with $243 for parts and $140 for labor. Prices may vary depending on your location.

What is an ignition coil and how does it work?

When to consider replacing an ignition coil:

How do mechanics replace the ignition coil?

Is it safe to drive with an ignition coil problem?

When replacing an ignition coil keep in mind:

Meet some of our expert BMW mechanics

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