NO SPARK, IGNITION COIL FUSE LOCATION REPLACEMENT BMW E90 E91 E92 E93

Introduction

This tutorial will guide you through the process of locating and replacing the ignition coil fuse in BMW E90, E91, E92, and E93 models that may experience issues with no spark. Understanding how to identify and replace the ignition coil fuse is crucial for resolving ignition problems in various BMW models, including the 325i, 328i, 330i, and more.

Step 1: Gather Necessary Tools and Supplies

Before starting the replacement process, ensure you have the following items ready:

• Replacement ignition coil fuse (check your vehicle manual for the correct specifications)
• Flathead screwdriver
• Multimeter (optional, for testing)
• Safety gloves and goggles

Step 2: Locate the Fuse Box

Follow these steps to find the fuse box in your BMW:

1. Open the Hood: Release the hood latch and lift the hood.
2. Find the Fuse Box:
   • The fuse box is typically located on the driver's side of the engine compartment.
   • Look for a black rectangular box with a removable cover.

Step 3: Remove the Fuse Box Cover

To access the fuses:

1. Use the Flathead Screwdriver:
   • Gently pry off the cover of the fuse box.
   • Be careful not to damage the clips holding the cover in place.

Step 4: Identify the Ignition Coil Fuse

Once the cover is removed, locate the ignition coil fuse:

1. Check the Fuse Diagram:
   • Refer to the fuse diagram on the inside of the fuse box cover or your vehicle manual.
   • Identify the specific fuse for the ignition coils; it is often labeled for easy identification.

Step 5: Inspect the Fuse

Before replacing the fuse, check its condition:

1. Visual Inspection:
   • Look for any signs of damage or a blown fuse (the metal strip inside the fuse will be broken).
2. Test with a Multimeter: (optional)
   • Set your multimeter to continuity mode.
   • Test the fuse by placing the probes on each end of the fuse. If it beeps, the fuse is good; if not, it needs replacement.

Step 6: Replace the Fuse

If the ignition coil fuse is found to be blown, follow these steps:

1. Remove the Old Fuse:
   • Pull the blown fuse out using your fingers or a pair of pliers if necessary.
2. Insert the New Fuse:
   • Take the new ignition coil fuse and insert it firmly into the appropriate slot in the fuse box.

Step 7: Test the Ignition System

After replacing the fuse, it's essential to check if the ignition system is functioning properly:

1. Close the Fuse Box:
   • Reattach the cover of the fuse box securely.
2. Start the Engine:
   • Attempt to start the vehicle to see if the ignition issue is resolved.
3. Check for Spark:
   • If the engine starts, check to see if the ignition coils are firing correctly.

Conclusion

You have successfully located and replaced the ignition coil fuse in your BMW E90, E91, E92, or E93. If the ignition issue persists after replacement, further diagnosis may be required, potentially involving the ignition coils or other electrical components. Always consult a professional mechanic if you are unsure about any steps or if problems continue.