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Thermostat: Buy, Install, Repair & More

 
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tim27
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Post11-06-2002, 17:28    Subject: Thermostat: Buy, Install, Repair & More Quote

Hello,
'Since yesterday, my TDI 1Z engine hasn't been warming up properly. After driving for 15 kilometers, the water temperature and oil temperature are only around 80°C, and that's with an outside temperature of 20°C.'

I think my thermostat might be broken, or maybe it's stuck.

What do you think about that?


Best regards,


Translated on 25-08-2026, 20:13.
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Michael II
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Post11-06-2002, 17:32    Subject: Thermostat: Buy, Install, Repair & More Quote

Hello,

I've experienced that before too (it even happened once in a 1Z engine, in an Audi A4).
It was the thermostat back then. Don't forget to replace the sealing ring from the housing when you change it.
Tschüss

Michael II


Translated on 25-08-2026, 20:14.
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Wesso
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Post11-06-2002, 18:59    Subject: Thermostat: Buy, Install, Repair & More Quote

Hello,
What other temperature are you talking about?
Okay, mine is a 2-star TD, and it only fully charged after 12km.
warm, which for me means an oil temperature of 80°C.
He just ignores it when I really put my foot down.
And the thermostat is fine, as it was recently replaced.
Best regards,
sw


Translated on 25-08-2026, 20:15.
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tim27
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Post11-06-2002, 21:18    Subject: Water Temperature: Check Current Readings Quote

Hello,
The water temperature was 20°C, the outside temperature was around 6-7°C, and after approximately 6-7 kilometers, the engine temperature reached 90°C, with the oil temperature at around 70°C, all under normal driving conditions.

Currently, with a somewhat faster driving style, the water temperature reaches only 90° after about 12 km. The oil temperature has essentially 'heated up' the water, causing both to become warmer simultaneously.


I bought a thermostat today for €12.25, including an O-ring.

Best regards,


Translated on 25-08-2026, 20:17.
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