Disconnect the hoses connected to the radiator and drain the system. (The water will come out by itself :) )
Then you just take the old radiator out and put the new one in.
Connect the hoses, fill the system up with water (you might want to add some antifreeze) and don't forget to air the system.
There is a little screw on the radiator that you have to loosen, and when water is coming out from the screw, you tighten it again.
Good luck!
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next to the radiator cap on top of the radiator
The fuel pump in located in the fuel tank on a 1991 BMW 525i. This model of BMW uses an electric fuel pump.
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When looking underneath a 1991 BMW 525i, the fuel filter is located next to the fuel tank. It is held in place by a bracket.
When looking underneath a 1991 BMW 525i, the fuel filter is located next to the fuel tank. It is held in place by a bracket.
I had the same problem on a 1994 525i. Replace the radiator.
According to my owner's manual you must contact a BMW dealer to replace the key.
Retail: $508.00 you can buy it for: $265.95 http://www.partsgeek.com/catalog/1989/bmw/525i/climate_control/a-fs-c_evaporator.html
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