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Old 09-10-2013, 09:54 PM
latitude39 latitude39 is offline
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Location: US - Colorado
Join Date: Feb 2010
Posts: 100
Mein Auto: E46-325xi; F34-328GT
Originally Posted by banglenot View Post
Outstanding writeup.
Thanks. I hope this is useful to others. My post-mortem thoughts 27k miles later are: 1) don't replace all hoses--only the couple up front that handle the hottest fluid. Inspect other hoses and replace weak rubber as needed, 2) don't replace the expansion tank unless it shows leakage. I have an E46, which has a fairly lightweight expansion tank that is prone to leakage before 100k miles. But the E60 X.tank is solid and beefy. It's also easily accessible. Save your money and wait for leakage if/when that ever happens.

"achtung! Stop zee effing car right now!" dash warning.

According to Bentley, the pump is supposed to store codes as a result of ongoing self-diagnostics. But this is my wife's car and she won't necessarily pay attention to the "stop zee effing car..." warning. 500 bucks spent every 100k miles is ok by me to prevent a meltdown.

...straightforward but fiddly job for a confident shadetree mechanic.
well said
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