C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Coolant Flush Question

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Old Mar 4, 2013 | 02:00 PM
  #1  
winffel's Avatar
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Coolant Flush Question

HI All,

I need to flush the coolant in my 2008 C300 because I'm replacing the thermostat but I can't seem to locate the drain plug. My wife's C230 has a red drain plug underneath the front of the car but I can't seem to locate anything in the C300, maybe i'm just an idiot and I don't see it but any info would be appreciated. thanks
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Old Aug 8, 2013 | 01:31 PM
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cxesar's Avatar
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From: Margate, Florida
2009 c300 sport
Originally Posted by winffel
HI All,

I need to flush the coolant in my 2008 C300 because I'm replacing the thermostat but I can't seem to locate the drain plug. My wife's C230 has a red drain plug underneath the front of the car but I can't seem to locate anything in the C300, maybe i'm just an idiot and I don't see it but any info would be appreciated. thanks
hey pal, did you ever find the plug to drain the coolant? im coming up on 70k miles and i wanna do the flush to the cooling system.
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Old Aug 8, 2013 | 01:49 PM
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From: Margate, Florida
2009 c300 sport
http://www.carcarekiosk.com/videos/M...Benz/C300/2009
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Old Aug 8, 2013 | 04:51 PM
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Originally Posted by cxesar
hey pal, did you ever find the plug to drain the coolant? im coming up on 70k miles and i wanna do the flush to the cooling system.
Take a look at your manual. The W204 coolant lasts 15 years without needing to be changed.

If you do change it make sure you use the MB recommended coolant & also their silica gel satchel.
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Old Aug 8, 2013 | 07:53 PM
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From: Hong Kong
2010 C200 CGI
Originally Posted by Carsy
Take a look at your manual. The W204 coolant lasts 15 years without needing to be changed.

If you do change it make sure you use the MB recommended coolant & also their silica gel satchel.
I seriously hope you don't go by every listed interval by MB. Some of their time tables are ridiculously long and overextended I find. You should look at your driving habits, environment etc and adjust the intervals as per.
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Old Aug 9, 2013 | 01:44 AM
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Nope , change my engine oil at 10,000 km , auto trans at 50,000 km, brakes & power steering oil, 2 yearly.
My coolant at 64,000 km & nearly 6 years is bright, clean & like new.
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