The Siemens CT918L1B0 takes the BRITA Intenza water filter for Bosch / Siemens fully automatic coffee machines (TCZ7003 / TZ70003) (part 17000705) as its water filter; replace it every 2 months; Australian sellers list it from A$36.71 as of 22 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your coffee machine
Siemens CT918L1B0
Confirmed against Siemens's listConfirmed against Siemens Australia's compatibility list
Not yours? ChangeSave it · remind me every 2 months
Takes the 17000705 water filter
BRITA Intenza water filter for Bosch / Siemens fully automatic coffee machines (TCZ7003 / TZ70003) · replace every 2 months · check the code printed on your old filter before ordering.
Your coffee machine
Confirmed against Siemens's listConfirmed against Siemens Australia's compatibility list
Takes the 17000705
Water filter · every 2 months · check the code on your old filter.
Other Siemens coffee machines that take the 17000705
GenuineGenuine Bosch
$36.71
Bosch Au · 22 OctLowest genuine · Bosch Au · checked 22 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Bosch. Compatible: another brand. Check certification on the seller's page.Genuine is made by Bosch. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest price · $36.71
Bosch Au. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 2 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Bosch
2 sellers
Opens Bosch Au in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 2 months. The filter light is a reminder, not a water-quality sensor.
After replacing: Register the new filter in the machine so the counter restarts: on display models open Care & maintenance, choose INTENZA filter, then Replace and follow the prompts (the machine rinses the filter); on button-panel models select the filter option in the settings menu and confirm. Remove the filter before running a descale cycle.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point.
Not due yet?
Get a nudge when your filter is due — it's every 2 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the water filter in your Siemens CT918L1B0
Watch the guide or follow the steps.
- 1Take the water tank out of the machine (built-in CTL/CT models: open the front door and lift the tank out on the left) and tip out the old cartridge.
- 2Turn the aroma ring on the base of the new Intenza cartridge to A, B or C for your water hardness (A for soft to medium, C for very hard).
- 3Stand the cartridge in a glass of water, opening up, and squeeze the sides gently until no more bubbles rise.
- 4Push the cartridge firmly into the fitting in the bottom of the tank, using the measuring spoon as a press, then fill the tank with fresh water and slide it back in.
- 5On the display open Care & maintenance, choose INTENZA filter, then Replace, and let the machine rinse the filter. It now counts down two months or 50 litres.
Every number this part goes by
- Retail name:
- 00467873
- Retail name:
- 00468009
- Retail name:
- 00575491
- Retail name:
- 17000705
- Retail name:
- 17004340
- Retail name:
- 17008835
- Retail name:
- BRITA Intenza
- Retail name:
- Intenza
- Retail name:
- TCZ7003
- Retail name:
- TZ70003
- Retail name:
- TZ70033A
Sellers list any of these; they are the same part.
About your Siemens CT918L1B0
Siemens coffee machine — iQ700 built-in (CT9). Its water filter is the BRITA Intenza water filter for Bosch / Siemens fully automatic coffee machines (TCZ7003 / TZ70003), part 17000705, changed every 2 months.
Where the model number is: The model number is usually on a sticker on the underside or back of the machine.
Fits these 26 models
Common questions
- Which water filter fits the Siemens CT918L1B0?
- The Siemens CT918L1B0 takes the BRITA Intenza water filter for Bosch / Siemens fully automatic coffee machines (TCZ7003 / TZ70003) (part 17000705). Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my Siemens CT918L1B0?
- Every 2 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 17000705 in Australia?
- We track 2 Australian sellers for the 17000705; the lowest listed price when we last checked was A$36.71 at Bosch Au. Prices are re-checked daily and dated on this page.
- How do I fit the 17000705 in a Siemens CT918L1B0?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- The filter stops softening the water, scale builds in the boiler, and the machine asks to be descaled more often; taste in the cup drops off too.
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