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Jokevm

Member Since: 09 Jul 2025
Location: Antwerp
Posts: 1

Heating problem td5

Hello,
I have a defender 90 td5 from 2003.
My cooling fluid always leaked but i found that it came from the upper radiator hose so i changed that and i thought problem fixed but after driving on the highway like 110 km/h it was again going in red and cutting power for a few seconds and some times going fully red for like 15 seconds and then i went aside. I maybe think its the thermostat so i am gonna change that but what else could it be?

19th Jul 2025 6:23pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5981

2006 Defender 110 Td5 USW Zermatt Silver

It could be the water pump not circulating the coolant
Blocked radiator
Failed thermostat
Is it HOT, or is saying it is hot?
How does the radiator and hoses feel during this?

20th Jul 2025 2:30am

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