Lennon, you can buy from Brothers. But it is more expensive, around Rm50. Do a search here, there is a post which mentioned about a shop near along Federal Highway which sell it much cheaper RM30+ if I remember correctly.
are we talking abt cleaning the MAF and the O2 sensors as well?
why dun we juz change the O2 sensors?
self cleaning nanti kapooot!
an O2 sensor for E39 is only 300++ as according to my mechanic.
and its guaranteed new.