Sign of recognition |
Reason / features |
A. Coolant is added regularly. | A small amount of coolant enters the combustion chamber. This condition without symptoms can last for a long time. |
B. Significant loss of coolant. When the engine is warm, a white exhaust gas plume is also emitted. | The coolant enters the combustion chamber in a large volume, there it turns into steam and exits as «water vapor» from the exhaust pipe. |
IN. Air bubbles rise from an open compensation tank, when the locking cap is opened, coolant under pressure splashes out of the tank or radiator. | The engine throws exhaust gases into the cooling system. The vent smells like exhaust gases. |
G. A film shimmering in variegated colors floats on the coolant. | Engine oil has entered the cooling system. |
D. A greyish emulsion appears on the dipstick to check the oil level, engine oil is riddled with water bubbles. | Coolant has entered the engine oil. The cylinder head gasket or cylinder head is defective. Damage should be diagnosed immediately. Tow the vehicle to a workshop for repairs. Caution: Water in engine oil damages bearings. |
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