M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Coolant Flush/Fill

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Old Sep 29, 2004 | 11:15 AM
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JAD
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Coolant Flush/Fill

I would like to flush and refill my coolant. Is the only proper way to do this throught the dealership? I know I can drain some of the coolant throught the plug but I can't flush it out of the engine? Is the only way to get a complete flush through the dealership? Thanks for any help.
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Old Sep 29, 2004 | 01:03 PM
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What I have always done in the past was drain the coolant as much as you can, fill it back with water, run the car with the heater on high for a while.
Repeat the process a couple of times or till it drains clear you are ****.
Then fill it back with coolant/water. Saves me a few bucks from the dealer.
I don't know if you need to bleed the system like some other cars.
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