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Old 09-08-2012, 06:25 PM
tommyv tommyv is offline
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Location: PA
Join Date: May 2007
Posts: 232
Mein Auto: 2005 545i
I would remove the resevoir. the hoses just unclip and then a couple screws to remove the resevoir. then you can turn it upside down and fish it out. reinstall, and then follow the below procedure to fill and bleed system

Before filling radiator:
Switch ignition ON, but don't start engine
Set heater controls to full hot
Set heater fan control to low
Set seat heat controls to low

Slowly fill cooling system and expansion tank to MAX using 50:50 mix of BMW coolant and distilled water

Leave expansion tank cap off
Start engine, let it idle for one minute
Install cap
Run engine until it reaches operating temperature
Let engine cool
check coolant level, add coolant to MAX level
2005 545i Black Sapphire Metallic - Sport/Premium/Cold Weather

2007 328xi coupe/Auto/sport/premium/black saph/saddle-turned in Aug. 2010

1983 Porsche 944/5sp/Gemini Gray

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