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My 2001 Passat TDI is leaking coolant but the Mechanic pressure tested and cannot find a leak when you tow a caravan it leaks quicker?
Wiki User
∙ 15y ago
Try having a look around the ECT( engine coolant temp sensor) fitting into the coolant passages around the side of the motor near the fire wall. They have a O-ring set underneath them , and are secured with a plastic C-clip. Look around with a flashlight and a mirror with the engine running.
Good luck( Oh before you remove the sensor, turn off the engine, release the pressure in the coolant expantion tank prior to removing the sensor).
Wiki User
∙ 15y ago
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Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.
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could have a crack in it that is leaking under pressure
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The water you see under the car when the air conditioner is running is condensation. If you are leaking antifreeze then you need to pressure test the system and repair the leak.
