I have a 97 C230, I have noticed fluid just to the right of the drain plug on the radiator. Cant figure out what is leaking. Is there an oil cooler, or is it the radiator? Big job to replace the radiator??
Thanks, kchemers

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'05 Ford Escape 100,000 miles
'87 560SL 92000 miles
'89 300TE 199,000 miles
'02 Audi TT 100,000 miles
'00 Ford Excursion V-10 121000 miles
'92 Mercury Capri 100000 miles
'02 BMW 325XI 60000 miles
'92 230CE 160000
'87 BMW 535SI 160,000 miles
'93 Rinker Captiva 209
5 Kids
2 Dogs
1 Wife

Unless it's gushing out noticably, the only way to diagnose a coolant leak is to have the cooling system pressure tested.

If you know how, you can rent the pressure tester from the mass marketers like Auto Zone, etc.

If not, hire a tech.

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Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"

Hey kchemers,

I know you posted 5 years ago.... but I think I have this same leak. Do you remember what it was?

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra