If you are unsure about the hoses.. it would be better insurance to replace them all. Its good insurance because if any of the hoses go in the future, you will also loose money on replacing coolant and time spent ordering and waiting for the hose to come in. Plus any damage the leaking coolant does before you catch it.. and you can usually get free shipping if you order them all at once versus regular shipping one at a time when they fail. You 'may' be able to look at the hoses and tell their age, but I have had leaks in what I thought were 'newer' hoses. So I say replace them all at the same time if you don't know the history of when they were done last. Then you only have to dump the coolant once. And alternative is to get a loaner coolant pressure tester (Advance Auto on Glenwood has one) and pump up the system cold and start squeezing some hoses and see if you see any cracks or issues or leaks. Just my 2cents.
Last edited by eaglecomm; 08-25-2009 at 10:17 AM.
'94 540i
e39 6-Spd, 3.15 LSD, UUC SSK w/ DSSR &RK5, M5 Bumpers/Side Skirts, HID Smileys/Fogs, E32 Mirror, BB Tri-Flo, V1, ZR3, Chipped, RD Strut Bar & Front and Rear Sway, SS Brake Lines, Brembos