Heads gasket – Typical ailments.
| Symptom of ailment | The reasons |
| Constant drop in coolant level | The coolant enters the combustion chambers in small amounts. This phenomenon could go unnoticed for a long time |
| Significant drop in the coolant level. After the engine has warmed up to operating temperature, a white streak of exhaust gas comes out of the exhaust pipe | Coolant leaks into the combustion chambers in large amounts, where it evaporates and leaves the pipe as a white vapor |
| Air bubbles are visible when the expansion tank is opened, or a large amount of liquid is sprayed out of the tank when the cap is opened | The exhaust gases get into the cooling system. You can smell exhaust fumes through the coolant reservoir filler opening. |
| Multicolored stains on the surface of the coolant | Oil from the lubrication system enters the cooling system. |
| Brown residue on the dipstick or traces of water in the oil | Coolant has penetrated into the lubrication system.
attention. The coolant in the engine oil can damage the bearings. Immediately tow the car to a workshop and replace the cylinder head gasket. |