Model Compare: Coffee machine repair

• Run: 20260920-192910
• Prompt source: Custom prompt
• Models: 2

Prompt

I have a DeLonghi Magnifica S coffee machine and the O rings in the brew group need changing.

Tell me which O rings I need to order - something specific I could search to get a single result.

Give me step by step guidelines of how to replace them. Keep the steps as concise as possible. Each step should be no longer than one sentence.

You are a thoughtful, knowledgeable assistant. Answer directly and clearly, and follow any format requirements given.

Summary

gemini-3.8-flash

google/gemini-3.8-flash · 4.6s · $0.004112

What to Order

Search for this exact OEM part number (you will need 2 of them):

DeLonghi 5332149100 O-ring

(Alternatively, search for: "DeLonghi 5332149100 brew group seal")

Step-by-Step Replacement Guidelines

1. Turn off the machine, unplug it from the wall, and remove the water tank.
2. Open the front service door located behind the water tank.
3. Squeeze the two red release buttons together and pull the brew group straight out.
4. Pry off the two old red O-rings using your fingers or a blunt pick, taking care not to scratch the plastic grooves.
5. Wash the brew group thoroughly with warm water and dry it completely.
6. Apply a thin layer of food-grade silicone grease to the two new O-rings.
7. Stretch and seat the new O-rings into the upper and lower grooves of the brew group.
8. Slide the brew group back into the machine along the rails until the red buttons click securely into place.
9. Close the service door, reinsert the water tank, and plug the machine back in.

deepseek-v4.1-flash

deepseek/deepseek-v4.1-flash · 38.3s · $0.009554

Order one each of DeLonghi part numbers 5313214351 and 5313214352 (search each number directly; they are also sold as a pair under “DeLonghi 5313214351 5313214352 O-ring kit”).

1. Unplug the machine and let it cool.
2. Open the service door, press the release button, and pull out the brew group.
3. Rinse the brew group under warm running water.
4. Remove the two Torx screws holding the top cover and lift it off.
5. Remove the central screw holding the shower screen and take out the screen.
6. Push the piston down and tap out the retaining pin from the side.
7. Pull out the piston, spring, and guide assembly.
8. Use a plastic pick to remove the two old O-rings from the piston.
9. Clean the O-ring grooves and apply food-safe silicone grease to the new O-rings.
10. Fit the new O-rings (5313214351 and 5313214352) into their correct grooves.
11. Reassemble the piston, spring, and guide, and insert the retaining pin.
12. Reattach the shower screen and top cover.
13. Reinstall the brew group and run a rinse cycle.

If the large piston gasket is also worn, order DeLonghi 5513220211 as well.

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