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300E Sludge
Could the oil cooler be the reason I have gray sludge in the coolant reservoir instead of a head gasket problem on a 91 mercedes 300E if the dip stick shows NO milkiness and the car does NOT overheat and runs like a champ????
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Answer
2 Attachment(s)
It may be the Radiator Transmission Cooler leaking ATF.
I note in EPC the radiator has been superseded twice. The cylinder head gasket is common, and has been superseded several times, depending on engine number. A Radiator Pressure Test and/or combustion leak test should confirm the issues. Radiator Pressure Test 14pc Kit Color Coded Radiator Cap Water Tank Tester - Amazon.com https://www.google.com/search?q=Lisle+75500+Combustion+Leak+Detector+for+Gas+and+Diesel+engines&rls=com.microsoft:en-us&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1&rlz=#q=Lisle+75500+Combustion+Leak+Detector+for+Gas+and+Diesel+engines&hl= en&rls=com.microsoft:en-us&source=lnms&tbm=shop&sa=X&ei=rjQ-Ucb6Gofp0QGrjoHwCA&ved=0CAwQ_AUoAw&bav=on.2,or.&bvm=bv.43287494,d.dmQ&fp=14d62f9e067535c3&biw=1280&b ih=823 . |
Respectfully disagree on the trans cooler, that sludge will be as pink as Pepto-Bismal, not grey.
Yes likely the head gasket, I never saw a blown headgasket blow coolant in to the oil, always oil in to the coolant, I don't know why. Be sure to replace or at least clean out the pressure tank as well as the expansion tank. |
OK
Quote:
Thanks for clarifying that for him. I only noted it: * Alerting him to the multiple radiator super-session (issues). * Because seriously burnt (carbon black) ATF has fooled me, both times the transmission was trashed. Sadly I have seen engine oil in the coolant system more times than I want to remember. . |
Do you drive short or long distances?
If you only drive short distances it may be condensation, the engine has to be rather hot for a longer time to evaporate the water. Rob |
Rob, you're thinking of the sludge in the engine, under the oil cap, this sludge is in the coolant.
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Thsnks for your guys help. Im changing the head gasket next weekend
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Make sure you have the head checked for flatness.
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