Berlingo Fuel Consumption! Help!

[JomJom]

I'm driving a Citroen Berlingo 2021 1.5hdi diesel van for awhile now and my fuel consumption getting lesser and lesser each day/weeks that gone by. At the moment it is running at 7.3km/litre of diesel. Mostly city driving. Anybody can help to figure what is wrong? Thank you.

[notsofast]

Is the consumption getting measurably worse at the pumps - i.e. are you having to fill up more often - or is it just a dashboard reading that's worsening?  If the latter, it's more likely a fault in how the vehicle measures consumption, rather than a change in actual consumption.

[boop]

Your trip meter has reached 9999 and the dumb car cannot calculate beyond that.

Reset the trip meter.

[JomJom]

Is the consumption getting measurably worse at the pumps - i.e. are you having to fill up more often - or is it just a dashboard reading that's worsening?  If the latter, it's more likely a fault in how the vehicle measures consumption, rather than a change in actual consumption.

Thanks! I dont really feel the need to fill up more often but i cannot confirm:/

[JomJom]

Your trip meter has reached 9999 and the dumb car cannot calculate beyond that.

Reset the trip meter.

How? Thanks

[boop]

Scroll to the trip meter display in the instrument cluster and if you have 9999 there then press and hold left steering wheel roller until reset.