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      10-18-2012, 11:35 AM   #15
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Drives: 08 E92 M3/99 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (13)

Originally Posted by robbiedawg View Post
+1 on the distilled water,it's a cheap way to help prevent corrosion.tap water has a lot of minerals which are bad for radiators.i just had a radiator flush and refill done at the dealer,brought in 2 gallons of distilled water for them to use,1 was still about half full,so about 3 gallons was the total fill.

the manual says the coolant is lifetime fill.i plan to change it every 3-4 years.does anyone who is more mechanically savvy than me think it can really be left unchanged for the life of the car?
Wow it says it's a lifetime fluid? No way in hell. It starts breaking down after many heat cycles.

I don't track my car, but I still do a full fluid flush every 2 years. Easy job (although messy), but well worth it I think.
Current: 2008 BMW M3 Sparkling Graphite/Bamboo Beige/6MT. 1999 BMW M3 Techno Violet/Dove/5MT. On the list: BMW M2 Long Beach Blue/Black/6MT