How long do BMW coil packs 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.
How do you check if a coil pack is good?
How to Test a Faulty Coil Pack
- Open the hood of your vehicle. Disconnect the negative battery cable.
- Disconnect the spark plug wires from the coil pack, one at a time.
- Use an ohmmeter to measure the primary resistance on the coil pack.
- Measure the secondary resistance on the coil pack.
Can you drive with a bad coil pack?
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.
What a bad ignition coil looks like?
Once the engine is cranked, you should look for blue sparks along the spark plug gap. If you can see blue sparks, this proves your ignition coil is working correctly. If you don’t see blue sparks or you see orange sparks, this is a sign that there’s a problem with your ignition coil.
Why do BMW coils go bad?
What causes the ignition coil to fail? This type of failure tends to be caused by either an overload or excessive wear upon the ignition control unit. It can also be caused by faulty wiring and battery weakness.
How much does it cost to replace an ignition coil on a BMW?
BMW 328i Ignition Coil Replacement Cost Estimate. Labor costs are estimated between $57 and $72 while parts are priced between $71 and $112.
How long do coil packs 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 often do coil packs need to be replaced?
Many coil packs don’t require service for up to 120,000 to 150,000 miles. Also, distributors are very prone to failure if they become wet or the engine happens to be submerged under water for a few seconds. Coil packs tend to operate even when they have been thoroughly doused with water.