Cross-posted from the "list" managed by MBCCA Technical Editor, Stu Ritter.

My feeling is the "blue" hides any contaminents better than "yellow", esp. due to the high FSS intervals.

:-) neil
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Morning,

While preparing tech materials for the STAR I ran across this little tech bulletin.

ALL PASSENGER CAR MODELS, COOLANT: For your information, recently the factory started using TWO kinds of engine coolant anti-freeze. The
original one is tinted yellowish and the new one is tinted bluish. Both coolant anti-freezes are compatible with each other.
H. Polz, Service Engineering
HPdg 6-8-99

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When will be able to start purchasing this new MB coolant from the dealer.

I just thought of this .... if you mix yellow and blue, don't you get green?! This might add confusion about which coolant someone is using.

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)