The brew unit is a mechanical rinse-and-brush job, not a chemical tablet-cleaning job.
Siemens maintenance
Siemens EQ maintenance guides.
Siemens uses the same broad care jobs across the EQ range, but the controls and maintenance systems differ. EQ900 plus uses automatic cleaning and descaling cartridges; most other EQ machines use prompted tablet-led cleaning, descaling and Calc’nClean.
How Siemens maintenance works
Five jobs sit behind most EQ maintenance prompts.
Keeping them separate makes the machine easier to understand and prevents a cleaning tablet, descaler, filter or brew-unit rinse being used for the wrong task.
Calc’nClean
Combined cleaning and descaling on supported EQ models when both jobs are due.
02Coffee-system cleaning
Prompted tablet-led cleaning to remove coffee oils and residue.
03Descaling
Separate mineral-scale removal through the machine’s service programme.
04INTENZA filtration
Water-filter setup, hardness configuration and replacement.
05Brewing unit
Remove and rinse with warm water; keep detergent away from the brew unit itself.
Current Siemens EQ range
Choose the family that matches your machine.
Exact E-numbers still matter, but the family page gets you to the right maintenance system first.

EQ900 plus
The EQ900 plus is the exception in the Siemens range: it adds automatic cleaning and descaling using dedicated cartridges, so its maintenance routine is not the same as a standard EQ900.

EQ900
EQ900 combines display-led cleaning, descaling and Calc’nClean programmes with autoMilk Clean and a removable brewing unit that still needs periodic manual care.

EQ700
EQ700 uses service-programme prompts for cleaning, descaling and Calc’nClean, plus AutoMilk Clean and a removable brewing unit that Siemens says should be cleaned with warm water only.

EQ600 iAroma
EQ600 iAroma sits between EQ500 and EQ700 and follows Siemens’ current maintenance logic: prompted service programmes, removable brewing-unit care, milk-system hygiene and water-filter management.

EQ500
EQ500 uses separate cleaning and descaling programmes or the combined Calc’nClean service programme. The brewing unit should be clean before Calc’nClean is started.

EQ6 plus
EQ6 plus remains part of Siemens’ UK range and uses the familiar service-programme approach with a removable brewing unit, milk-system care, filtration and prompted cleaning or descaling.

EQ300
EQ300 is Siemens’ simpler current bean-to-cup platform. It still benefits from regular brewing-unit cleaning, milk-system hygiene and completing the machine’s prompted maintenance programmes.
Siemens-specific care
The brewing unit is removable — and that changes the routine.
Current Siemens guidance for machines such as EQ700 is to remove the brewing unit periodically and clean it with warm water and a gentle brush. Do not use detergent, soap, vinegar or acid on the brew unit itself.
See the EQ700 brew-unit routine →Add it only where the machine’s cleaning programme instructs.
Run it when prompted rather than inventing a calendar interval.
Keep the water-hardness setting and filter status accurate.
Important exception
EQ900 plus should not be treated like a standard EQ900.
The EQ900 plus adds Siemens’ autoCalc’nClean system using dedicated cleaning and descaling cartridges. That means the normal tablet-led Calc’nClean instructions are not the right starting point for this model.
Open EQ900 plus guideWatch cartridge status and replace the dedicated maintenance cartridges when the machine prompts.
Widely owned earlier machines
Older Siemens EQ machines still need a clear route.
Personalised schedules, reminders, maintenance history and machine-specific care guidance.
Learn more about Ventori Care →Put Siemens service prompts into the wider maintenance picture.
Use machine prompts for the service programmes and Ventori Care to keep water, filter, milk and physical cleaning jobs visible.