vw golf v5 poor economy?

[leemeg99]

hi i have a 2000 v5 manual 69000 miles, the economy is approx 21 mpg (city use) the maf has been changed but still has no benifit to mpg
has anyone any ideas on how to resolve this

[datsun40146]

Check your O2 sensors, air filter, and most of all your criving habits. If your taking the car to 5k at every light then your mileage will suffer.

[leemeg99]

thanks for that where are the 02 sensors situated