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Bmw 525i ignition coil?

What’s the signs of a bad ignition coil?

When Ignition Coils Go Bad: 7 Signs

  • Your Car Won’t Start.
  • Your Check Engine Light Comes On.
  • Your Engine Stalls.
  • Decreased Fuel Economy.
  • You See An Oil Leak.
  • Backfiring & Poor Catalytic Converter Performance.
  • You Are Overdue For New Spark Plugs.

How much does it cost to replace an ignition coil on a BMW?

The average cost for a BMW 328i ignition coil replacement is between $130 and $185. Labor costs are estimated between $57 and $71 while parts are priced between $74 and $113. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.

Are all BMW ignition coils the same?

Even though some part numbers are for specific models, you can trace its lineage back to the original. Therefore, all BMW ignition coil applications from 2003-2016 are comparable or even interchangeable.

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How do I know if my ignition coil is getting power?

Locate the positive or power wire attached to the engine coil. Check for power using a test light. If this wire has no power, then your ignition coil is not receiving current. You should check the wiring from your ignition switch to the coil for breaks in the wire and repair them.

Can I drive with a bad ignition coil?

It is possible to drive with a faulty Coil On Plug (COP), but not advisable. Driving with a faulty waste spark ignition system won’t be possible. Driving with a faulty coil pack can damage other components of the engine. You’ll also learn how to diagnose and replace your faulty coil.

How long do ignition coils last?

The ignition coil on your car is supposed to last around 100,000 miles or more. There are a number of factors that can lead to this part become damaged prematurely. Most of the newer cars on the market have a hard plastic cover that is designed to protect the coil from damage.

How long do BMW ignition coils last?

BMW ignition coils can last upward of 140,000 miles. Replacing them is usually only done when there are signs of failure and not as preventative maintenance.

Can I just replace one ignition coil?

Changing Just One Coil



You can of course change just one coil. If your coils are easy to access, replacing them as they fail is OK, apart from the inconvenience. It is possible to drive a car with a faulty coil but it isn’t advised. But on larger engines, you may need to remove engine components like intake plenum.

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Should you change ignition coils when changing spark plugs?

Time and mileage are enemies to your vehicle’s ignition wires and coils. Whenever you change spark plugs, it is a good idea to replace the ignition wires and vice versa. This will keep your vehicle running at peak performance and prevent you wasting money on unburned gasoline.

Which ignition coil is best?

Best Ignition Coil Reviews & Recommendations 2020

  • Best Overall. Delphi GN10328 Ignition Coil.
  • Best Value. ENA 8-Pack Ignition Coil Set.
  • Honorable Mention. King Auto Parts Combo Pack of Ignition Coils for Honda, Acura, Saturn.

Where is ignition coil A?

Step 2: Locate the ignition coil, or coils, on your vehicle.



These are usually located right on the engine, either bolted directly to the spark plugs or mounted remotely somewhere on top of the engine.

How many volts should an ignition coil put out?

The role of the ignition coil is to multiply battery voltage into high voltage. Following Ohm’s law for the conversion of volts to amperes, oil-filled coils generally require 3 to 5 amperes of primary current to produce 20,000-30,000 volts of secondary current.

How do you check voltage on an ignition coil?

Use the multimeter to check the removed ignition coil. Connect an ohmmeter directly to the component connector PIN 1 and PIN 2 in order to measure the primary winding. high-voltage outputs of the ignition coil.

What happens when ignition coil gets hot?

A damaged coil can short some windings, causing high current but low inductance, so low energy. As it gets hot the energy falloff weakens the spark until the engine quits making noises.

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