| Symptom | Reason(s) |
| The engine gets very hot | Lack of coolant in the system The drive belt is slipping (accompanied by a "squealing" sound when the engine speed increases sharply) Internal or external clogging of the radiator A kink in the lower hose impairs coolant circulation The thermostat is not opening enough The ignition regulators are not working properly (accompanied by a loss of power and sometimes a missed flash) The carburetor is incorrectly adjusted (too lean mixture) Partial blockage of the exhaust system The oil level in the pan is too low The cylinder head gasket is blown The engine hasn't broken in yet The brakes are sticking |
| The engine does not heat up well | The thermostat is stuck in the open position Incorrect thermostat brand (opening too early) The thermostat is missing. |
| Coolant loss | The hose clamps have come loose The hoses are damaged or leaking The radiator is leaking The thermostat gasket is leaking The expansion tank cap is leaking or the cap spring is worn out The cylinder head gasket is blown There is a crack(s) in the block or cylinder head. |
| The heater does not provide enough heat | The thermostat is incorrectly selected or missing Heater control cables are not adjusted correctly The cooling system control valve is faulty or sticking The heater core is clogged. |
[The information is available on the website www.VWManual.ru]
Visitor comments