I think these don't use a traditional expansion valve, but rather an "orifice tube", located in the high pressure line junction near firewall going to evap unit.
SOURCE: diagram for serpentine belt for 2002 BMW 525i
An image of a serpentine belt, hope this will help you,
Eitan.
SOURCE: replace expansion valve
Hi Tresap,
The only expansion valve that I can think of that you may like to replace is on the air conditioning unit....This valve is found usualy mounted onto the AC unit....You'll have to remove the dash board and centre consul....This is qute a job....You should then see the expantion valve on the cabin side of the AC housing....where the pipes go thru into the engine compartment....NOW HOLD EVERYTHING.....before you can remove the valve you need to depressurize the AC unit....That should be done by an expert....The gas is dangerous and you must wear safety googles at ALL times....Once you have removed the valve, you must seal the system so that as little moisture as possible enters the system....If it is left open, you'll have to replace the dryer unit too....when you've finished your replacement, assembly is the opposite as disassembly.....You'll then need to have the system recharged....Don't try to engage it until that has been done....It wont work even if you tried ,as there are pressur switches which will inhibit the opperation....If you have had practice, it will take about three quarters of a day......if not, three or four days
Hope that this helps you
Best regards Johngee10
SOURCE: Replace the A/C exansion valve
i am not really sure on this but try these websites fix & troubleshoot heating & A/C its www.automedia.com and the other one is car A/c repair www.directgardening.com if you have a autozone near you there you can rent the special tools you will need take them back and get your money back try www.autozone.com
SOURCE: where is the starter located on my 1992 bmw 525i?
it is on the drivers side of the engine right where the engine and transmission meet.
SOURCE: oil change reset for bmw 525i
You only need to hold the left odometer reset button while turning the key to position 1 (Accessory). Keep holding the button for 5 or so seconds until any of the following shows in the display: OIL SERVICE or INSPECTION with RESET or RE. Release the button and press it again for another 5 or so seconds until RESET or RE flash. While the display flashes, press the button one more time briefly. If done correctly, END SIA should show up for a few seconds. All done.
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