Extremely high fuel use

[Samuraisaint]

Hi there, My remapped 2006/10 E60 525D has very high fuel consumption—15 litres per hundred kilometres on these chilly days—compared to its 12–13 litres per hundred kilometres in moderate traffic. I removed the EGR and DPF/Swirl flaps, cleaned the Intake Manifold and MAP, and set the thermostats to OEM BMW standards, which maintain a minimum temperature of 87 degrees Celsius. The values of all of the injectors range from -1 to 1. Can you think of anything? I am grateful.

[Lovelyas]

When you do a code scan, does it return any error codes?
It might be that the map is flawed.

[Samuraisaint]

Before the remap and dpf removal, it was the same or slightly higher; there was no smoke, it pulled well, and there was no loss of power or torque, therefore the culprit may be the callipers.

[Notef]

Are there any kind of callipers that are binding?

[Samuraisaint]

When I change the rear pads, I will make sure to check.

[Bridgenix]

only two, and they're both mentioned: callipers and statistics; yet, it will reduce loads in cold weather and traffic.

[PopeyeR]

The air purifier, how is it?

[CleverPixel]

what is an air purifier? petrol filter? sluggish step? It's possible that any injector adjustment between -1 and 1 is problematic. In regard to one another, it is only a correction.

[Samuraisaint]

I just changed out the air, fuel, oil, and pollen filters with motul x-clean 8100 5w40 last week. Not a heavy footer, shifts at 2100-2200 rpm regularly, sees above 4000 rpm about twice or once a day, otherwise drives normally.