Resurrecting this thread for advice specific to the waterpump. Planning on completing my overhaul with the water pump, belts and hoses in the next couple of weeks. Was curious, my indy just did the coolant flush in February 2010 and since I've never done a flush would prefer to leave that piece of the puzzle alone.

So, I know that once I pull the waterpump out, coolant will come gushing out, but can I just put the new pump in, fill and bleed the system to top off the coolant and be done with it, or will I need to do a complete system flush as called for in the DIY?

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- 2003 525I Sedan - Manual Tranny, M-tech Bumpers Front/Rear, shadowline, M5 Mirrors, 19" Miro 279's, NNR Coilovers, Front lip, 50% tint, Dinan ECU Stage II, Dinan CAI, Dinan Free Flow Exhaust, DICE Ipod, Connects2/Parrot Bluetooth, SSK Kit, AC Schnitzer Shift Knob, CDV Delete,
- 2008 R350 Mercedes Wagon