View Full Version : BMW E90 320d 163hp M47N2 fuel economy tunning

21st March, 2018, 10:47 AM
Hello, I scrolled through a couple of forums related to fuel economy remapping for my BMW 320 E90 automatic gearbox (163hp version , I belive engine code is M47N2). Some say it works some say it does not.

On my current daily drive I have:
7 miles urban driving(0-40mph) +
26 miles (40km) national A roads (50-80mph) with 2-3 overtakes +
10 motorway (75-100mph)

in the end I get 39mpg (7.2l/100km).

Anyone tried any remap which improved the fuel economy ( real life example before/after) ?

21st March, 2018, 10:51 AM
If you post the file, we can help you.

Regards from Belgium

21st March, 2018, 10:57 AM
Thanks , I'll get the map with mpps . I should mention that the EGR and DPF need to stay on the car.
To be honest I am looking for some examples before and after to see if it is worth the effort.
Positive and negative sides are also welcomed.

21st March, 2018, 05:15 PM
Your mpg is ok.
Without annoying you... if you want to drive cheaper, buy electric car!