How to Replace the Diffuser of a DeLonghi Coffee Maker

Aug 05, 2023, 12:47pm

The diffuser is used to distribute the hot water over the coffee. With use, this part may become damaged.

The diffuser of your coffee machine can become clogged with dirt from use of the device.

If you feel your coffee is losing quality, the diffuser may be dirty or failing.

The diffuser or strainer of a coffee maker is usually located above the capsule holder of the machine.

A diffuser in a DeLonghi coffee maker is an essential component responsible for evenly spreading hot water over the coffee grounds. This allows for proper extraction and flavor development. Over time, the diffuser can become clogged or worn out, and replacing it can restore the full functionality and taste of your coffee maker. Here’s how to replace the diffuser in a DeLonghi coffee maker.

How to Replace the Diffuser of a DeLonghi Coffee Maker

Materials Needed:

  1. A replacement diffuser specifically compatible with your DeLonghi model
  2. A set of screwdrivers (usually Phillips and flat-head)
  3. Soft cloth or towel
  4. The user manual for your specific DeLonghi model (highly recommended)


Step 1: Turn Off and Unplug the Coffee Maker

Safety is paramount, so make sure to turn off the coffee maker and unplug it from the electrical outlet.

Step 2: Remove the Water Tank and Drip Tray

Take off the water tank and drip tray to clear the workspace and access the brewing unit.

Step 3: Access the Diffuser

Open the coffee holder where the coffee capsules or grounds are inserted. The diffuser is typically situated above this area and may be covered by a protective casing or cover.

Step 4: Remove the Protective Casing (if applicable)

Carefully unscrew or unclip any protective casing over the diffuser, keeping any screws or clips in a safe place for reassembly later.

Step 5: Remove the Old Diffuser

Carefully unscrew or unclip the old diffuser, taking note of its orientation and how it’s fitted. This will help you when installing the new one.

Step 6: Clean the Surrounding Area

Before installing the new diffuser, use a soft cloth to clean the surrounding area. This helps ensure a proper fit and optimal function.

Step 7: Install the New Diffuser

Position the new diffuser in the same orientation as the old one, and secure it with the screws or clips that held the previous part.

Step 8: Reattach the Protective Casing (if applicable)

Replace the protective casing or cover, if there was one, and secure it with the original screws or clips.

How to Replace the Diffuser of a DeLonghi Coffee Maker

Step 9: Reassemble the Coffee Maker

Place back the water tank and drip tray.

Step 10: Test the Coffee Maker

Plug in the coffee maker, turn it on, and run a test brew. Look for proper water distribution and ensure there are no leaks or other issues.


Replacing the diffuser in a DeLonghi coffee maker is a relatively simple task that requires basic tools and attention to detail. However, it is always a good idea to refer to the specific user manual for your model, as there may be slight differences in the procedure.

If you feel uncomfortable performing this replacement, it might be wise to consult a professional technician or the manufacturer’s support service. Proper maintenance, including replacing worn parts like the diffuser, ensures that your DeLonghi coffee maker continues to provide delicious coffee with the quality and flavor that you expect. By taking care of your coffee maker and addressing issues like a worn diffuser, you can extend its lifespan and continue to enjoy your favorite brews for years to come.