Skip to content
Sixty Day Club

Siemens EQ.5 water filter

Every Siemens EQ.5 takes the TZ70003 filter. That covers the TE501203RW and TE503209RW. 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.5 name. They all take the same filter, so whichever of these you own, this is the right page.

Sold outside the UK

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

Which water filter does the Siemens EQ.5 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 waterChange itWho says so
Soft, Moderate or hardevery 2 monthsBrita does
Very hardevery 6 weeksWe 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.5 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.