Siemens EQ5 Brew group revision

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Picture of the brewing unit. The first gasket to be replaced is on the blue water inlet.

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The second seal, which should be replaced more often, is located on the upper piston. In theory, it could also be replaced without further disassembly. Since opening the brewing unit is not difficult, it can be cleaned more thoroughly.

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Remove the cover from the upper piston. Reach under the notches on the left and right, a plastic tool is helpful here, but you can also use your fingers. Remove the cover.

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Place the brewing unit on the work surface as shown.

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Lift the upper side plate. The rubber bumper at the top of the piston will probably fall off. It must be pushed back into the top of the pin on the side plate during reassembly, with the smaller bumper facing down.

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Pull out the piston completely.

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Using a blunt tool, lift out the lid above the crema valve. Lift off the lid.

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Lift out the cylinder with the lower piston.