Siemens EQ.3 water filter

Q: Which models does this cover?

The Siemens EQ.3 range covers 2 models: TI303203GB, TI301209RW. They all take the same water filter.

Q: Which water filter does the Siemens EQ.3 take?

The TZ70003. It is also sold as TCZ7003. You may see it written as Intenza, Intenza BSH, TCZ7033, 17000705, 575491, 467873, 12008246. These are all the same filter.

Q: How often should I change it?

Every 2 months. That is the manufacturer's limit and it is a maximum, not a target — they state it as a time or a number of litres, whichever comes first. In a very hard water area we suggest about 6 weeks instead, which is our own advice rather than theirs.

Q: Can I use a cheaper compatible filter?

Yes. The TZ70003 is a plain mechanical fitting with no chip and no lock, so a compatible filter of the right shape works the same way as the manufacturer's own.

Every Siemens EQ.3 takes the TZ70003 filter. That covers the TI303203GB and TI301209RW. Change it every 2 months. In a very hard water area, change it at about 6 weeks instead. You may see it sold as TCZ7003. Both numbers are the same filter. There is no batch number to check on this range.

The filter you need: TZ70003
Change it: every 2 months

Which models does this cover?

2 models are sold under the Siemens EQ.3 name. They all take the same filter, so whichever of these you own, this is the right page.

Sold in the UK

TI303203GB

Sold outside the UK

Same machines, different market codes. If yours is one of these, it takes the same filter.

TI301209RW

Which water filter does the Siemens EQ.3 take?

The TZ70003, also sold as TCZ7003. The TZ70003 page lists every name shops sell it under and every other machine that takes it.

How often should I change it?

Every 2 months.

How often to change the Brita Intenza for BSH by water hardness
Your water	Change it	Who says so
Soft, Moderate or hard	every 2 months	Brita does
Very hard	every 6 weeks	We do

The manufacturer's figure is a maximum, not a target — softer water never means you can leave one in longer. Why that is

Can I use a cheaper compatible filter?

Yes. The TZ70003 is a plain push-in fitting — no chip, no lock, nothing for the machine to check. A compatible filter of the right shape does the same job as the manufacturer's own.

What else takes the same filter?

10 other ranges in our list take the TZ70003. If you own more than one of them, the same filter covers all of them.

See all 11 ranges that take the TZ70003

How sure are we about this?

We are confident, but we have not had one of these in our hands.

Every source we hold agrees on which filter the Siemens EQ.3 takes. We have not physically confirmed it ourselves, which is the only reason this is not marked as checked.

The part number printed on the filter you are removing is the final word. If it disagrees with this page, trust the cartridge.