BMW 525iT Ignition Coil Replacement at your home or office.

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received a Ignition Coil Replacement.
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$178.83 - $188.83

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Ignition Coil Replacement Estimate for BMW 525iT

BMW 525iT Ignition Coil Replacement costs $184 on average.

CarServiceEstimateShop/Dealer Price
1993 BMW 525iTL6-2.5LService typeIgnition Coil ReplacementEstimate$282.67Shop/Dealer Price$352.81 - $516.61
Show example BMW 525iT 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


YourMechanic BMW Ignition Coil Replacement Service

Average Rating

4.9/5

Number of Reviews

106

Rating Summary
102
2
1
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1
102
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Brian

20 years of experience
132 reviews
Brian
20 years of experience
BMW 528i xDrive - Ignition Coil - Bowie, Maryland
Excellent Service and fast

Paul

23 years of experience
207 reviews
Paul
23 years of experience
BMW 528i - Ignition Coil - Las Vegas, Nevada
Paul is amazing. Again, he arrived early. Finished the job quickly and I was able to leave home for work early. I am very satisfied. Thank you so much.

Emmette

34 years of experience
282 reviews
Emmette
34 years of experience
BMW Z3 - Ignition Coil - Arlington, Virginia
Emmette was fantastic! He arrived early. He changed my one of my ignition coils and all spark plugs. When doing so, he showed me an oil leak seeping into the plugs which he explained caused the short. A different repair shop I went to two days prior advised e to change all coils and plugs at a price of $1,100, They never once noticed the leaking oil under the failed coil (and all others). When my car sputtered a bit on initial start up, Emmette insisted I take it for a ride while he waited for my return. He did so to ensure that the repair worked and I was satisfied. Emmette also inspected my entire car on his own accord. He sprayed a squeaky door, adjusted my tire pressure which was excessive (55 lbs of pressure instead of 32 in all 4 tires. This excess was done by a dedicated "tire" shop when they put my new tires on...What the heck!). He also fixed a bent gas cap (which is likely the cause of 2 EVAP leak codes). He did so at no charge, whereas the other shops wanted to replace major EVAP parts at yet another $1, 500. So far, no EVAP code has returned. I was a bit apprehensive having an unkown mechanic outside of a physical shop do the work on my BMW Z3. However after my exceptional experience with Emmette, I'm going to hire him to replace an expansion hose and to further diagnose and fix the oil leak he found.

Theodore

14 years of experience
1091 reviews
Theodore
14 years of experience
BMW 335i - Ignition Coil - Bothell, Washington
Excellent as always.

Excellent Rating


YourMechanic BMW Ignition Coil Replacement Service

Average Rating

4.9/5

Number of Reviews

106

Rating Summary
102
2
1
0
1
102
2
1
0
1
Red-stars EXCELLENT RATING ON
Number of BMW Ignition Coil Replacement services completed
1166+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
900+
experts on our platform

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