open the hood and look at the top of the engine compartment near the windshield. there is one rectangular container on each side that has a long black lever retainer spring and a screw lock. you need to replace both if they are dirty. simple to do in five minutes.
http://brokenappliance.blogspot.com/2008/06/replacing-bmw-e60-microfilter-cabin-air.html
how do you change the starter on 93 525i BMW
in the trunk
how do u change on board computer BMW 525i 1990 and need a diagram of relay switches
right side of the trunk
how do i remove and replace my fog lamp bulbs on my 2006 bmw 525i
what kind of transmission fluid does a 1991 bmw 525i need
Yes !
The 1990 325i has a M20B25 motor. The earlier 1990 525i had the same motor, a M20B25, whereas the later 1990 525i had a M50B25.
125
how i rem placing 2004 BMW 525i solenoid vanos unit.? because my car no change in 4 and 5 speed
The best oil you could use for the 525 i is magnatec or 20 w 50