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water pump failure of my Octavia 1.6 TDI CHLA. Vehicle data: Octavia 1.6 TDI CHLA Year 2014 Km: 46700. Coolant: Factory G13. The failure began to introduce to find my way to work on the highway, when the alarm temperature, seeing the marker this was at 130C °, slow down immediately and I stepped aside, the temperature began to drop rapidly reaching 90C ° (normal). I continued my way and starts to rise again, this time I stop for a longer time. Check radiator for obstruction but there was nothing. I followed up and the fault is not resubmitted. The next day he returned to fail in the same way but do not let the temperature continue to rise. One of the first components to check was the thermostat which buy and change After changing the thermostat I go out with the car at a road test, and the fault is repeated in the same way, this only occurs when the car is stopped for long periods of time. The information indicates that manufactures know this problem under number 2039483/6 called TPI. Which indicates that having a failure of this type should change the water pump for the following part numbers. 04L-121-011EX (recently renovated) 04L-121-011-E (NEW) It turns out that the pump has a solenoid and a plaque that act together to accelerate the process of heating the engine, preventing the blades generate water flow. Some of these components failure and let the pump in heating mode. Since the change was made pump the problem has not been resubmitted. I leave images. regards

Hello everyone. I would like to share my experience. I had exactly the same problem of overheating engine. After changing the thermostat , the problem persists . Thanks to the experiences described in this forum , I decided to change the water pump . Which resulted is stuck in the poscición heating . I bought the water pump remanufacturing with the number 04L121011EX I leave the image of pump failure

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