E46 318D fuel filter replacement? Or not?

[Scoobman]

Hi
I just need some advice.
Car is a 2004 E46 318D on German plates
Currently done about 192,000km in 7 years.

Currently doing about 30,000km per year.

Would like to see another 4 years from it

so 310,000km any extra would be a bonus.

The car is in perfect working order.Hums down the autobahn with no complaint at a steady 180kph, and when little things go I replace them.

I have no evidence of the fuel filter ever being changed.
Knowing little about BMWs....
1.Is it a ´´for life unit?´´
2.If not, at what intervals should they be replaced?
3. Will replacing it add to the longevity of the engine?

I am of the school..... if it aint broke dont touch it.

Thanks
Scoobman

[Neil.D]

Every 3rd oil change is the norm.

[Scoobman]

OK thanks for that.
I will get it done then