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Vintage Cars/W123 230E 1983


Hi Ron,
My 230E merc, started to billow whitish smoke earlier in the week. She has 270 000 kilometers on the clock and has a fairly comprehensive service history. After checking the engine I noticed the Oil filler cap bits (plastic on the underside of the cap) holding the cap to the cover had both broken off. I have put a new cap on. When I drove it yesterday there was a lot less smoke, but still white smoke from the exhaust. Is this related or is it time for a rebuild?

well whitish smoke can be related to head gasket issues, are you loosing radiator fluid?
Is the underside of the oil cap frothy or have any white/light brown to it?
White smoke from head gasket issue will not smell like oil , but sweeter.  Also slim possibilty that it is ATF fluid drawn into engine compartment by bad vacuum line .

IF you are getting moisture into the internals of the engine, either through a bad oil cap or some other way ( rain ect) white smoke could also be water burning off the oil

Let me know what you find

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I can answer questions on W114/ W115 /W(R)107/W123/W126 Mercedes models 1967-1985. I have rebuilt many of these cars and have problem solved many issues. I have access to much of the technical data and have deailed instructions on fixing the most common issues. Vintage US 1950-1989 and other foreign cars as well If you are going to ask me about car value, please provide ample information on service history, rust issues, and current "needs". Pictures are helpful. Disclaimer on value - I can only give you data on what the market is bringing, and may not be what you want to hear!


Maintain, restore vintage Mercedes (W114/W115 /W107/W126)

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College Graduate. Self proclaimed and taught Mercedes shade tree mechanic.

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