Hi everyone, been having a mysterious drop in the coolant level. No signs of obvious leaks anywhere. Any ideas? Thanks


Car: MB W124 E200
My: 1994
Mileage: 125K km

Check the cap. Have it pressure tested. If it's weak, you will lose coolant thru the overflow hose. Don't know the exact spec but something in the range of 17-20psi or about 1.2 bar. Otherwise it's getting consumed inside the engine which reads as head gasket. Could be getting into the sump or a cylinder. Drain the oil, see what you get. Pull the plugs and get someone to read them for you..

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE