When to change the water pump on Suzuki Jimny 2014

Yes but that’s cars for you .you don’t no when they are going to go wrong if it makes you feel better change the water pump and I think the fuel filter is in the tank as it part of the pump

Hmmm, I'm thinking maybe of changing the water pump either now or in another 10,000 miles, like I say, maybe just for precaution.

I suppose with the fuel pump/filter I'll just stick it out. What are the symptoms of failing fuel pump?

I would say not starting but not to sure

I think you are making work for yourself and could even make things worse. The fuel and water pumps are not service items and are not known to give issues on a well maintained Jimny. If you must (I understand your concerns) I would only fit genuine Suzuki parts as aftermarket parts can be a bit of a lottery, at least genuine will meet your needs for absolute reliability.
Also at which point do you draw the line? Alternator, radiator hoses, PAS pump, fuel pump etc


A true tale of similar preventative maintenance:
Last week a friend of mine changed the fuel pump on his 190K miles Porsche 924 as a precaution and had a bosch pump professionally fitted. The new pump now makes a phenomenal noise, we suppect cavitation but not 100% sure. The pump has been tested but messing has obviously disturbed something creating new problems that now need solving. Its expensive, not working correctly and was the result of "fixing" a problem that never existed.

mmm, now you lot have me worried.

My radiator is battered and needs to be replaced. Because I am changing this I thought it would be the best time to change the water pump and thermostat at the same time, drain it all once rather than at some point in the future.

Think I will just pack the water pump away in case it does fail in the future.

I had a water pump fail. It was in a 13 year old Jimny that had been converted to a 1.6 and done 120,000 miles, the last 40,000 of which were mostly towing in very harsh conditions. I had been running it with straight water (no antifreeze) in the coolant.
At 4 years old and such low mileage the water pump on yours will be fine but given the fact you are refusing to take the advice of others and seem adamant it should be changed I suggest you change it immediately. Likewise the fuel pump, and although you haven't considered them, change the chain in the transfer case and the big end journals. Better to be safe than sorry.