Hi to all, I am new to this site and just bought a 2003 530i. I 100% love the car but the gas milage to bad!!!! Getting about 12.8 l/100k
It costs about 75 to fill and getting about 500 to 650 k per tank.
My question is.. is there something a dealer can do to the computer inside the car to save on gas, maybe reduce horsepower??? I'm not sure but friend say there are chips ect.....