S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

coolant mixture??

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Old 03-25-2015, 10:41 AM
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mercedes benz 300SE 1993
coolant mixture??

guys
my coolant has a layer of some coffe coloured liquid/mixture floating over it.
what could it be and what should i do for this?

engine oil is clean ...could this be radiator leak?
Old 03-25-2015, 04:59 PM
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s320
might be from a rotting radiator.The w140s when rad gets old,the transcooler leaks.I'd check it,don't drive till you do.
Old 03-26-2015, 03:14 PM
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mercedes benz 300SE 1993
coolant

Yes please help me with this.the car drives perfect.no signs and symptoms of anything but the coolant needs to be resolved
Old 03-26-2015, 04:11 PM
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they can drive good while water destroys your transmission.Check your transmission fluid. If it looks pink in color replace the radiator.If you have little money,you can seal off radiator,and hook another transcooler to lines.
Old 03-26-2015, 04:12 PM
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If everything is ok,then change your coolant,I would flush system too.

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