grahamjf Posted July 16, 2016 Report Share Posted July 16, 2016 Hi allJust bought a A4 b7 2.0 tdi 2005 silly question but where should the water temp sit, mine sits just above 50 even after 2 hours of driving. Some times drops back to the 50But when i select hot air its gets hot.Is it normal sitting so low down?Thank you in advance Link to comment Share on other sites More sharing options...
cruiser647 Posted July 17, 2016 Report Share Posted July 17, 2016 Hey Grahamjf That sounds a bit low. TI should sit at 90. That would usually point to the thermostat, but it could be the temperature sender that is faulty. So, change the temperature sender first, as they are only a few £ and I think are quite easy to get to on the 2.0 TDi. Only after that should you look at the thermostat. Are you also due a cambelt change soon? If so, you should change the thermostat and water pump then, when it is all opened up. Hope that helps! Link to comment Share on other sites More sharing options...
grahamjf Posted July 17, 2016 Author Report Share Posted July 17, 2016 Thanks very much for the reply. Changed the thermostat the day, still the same. Where is the temperature sender unit located? Link to comment Share on other sites More sharing options...
cruiser647 Posted July 17, 2016 Report Share Posted July 17, 2016 Not sure I'm afraid. yahoo will have the details. But it is usually a push fit, with a retaining clip Link to comment Share on other sites More sharing options...
grahamjf Posted July 17, 2016 Author Report Share Posted July 17, 2016 Thanks very much for the reply Link to comment Share on other sites More sharing options...
cruiser647 Posted July 18, 2016 Report Share Posted July 18, 2016 Oooh, your local GSF/Eurocarparts will have the sensors. Link to comment Share on other sites More sharing options...
grahamjf Posted July 18, 2016 Author Report Share Posted July 18, 2016 Bought a new temp sensor this morning from audi, But the gauge is still not going above 50 degrees. Any ideas on what else to check? (Thermostat has been done already) Link to comment Share on other sites More sharing options...
cruiser647 Posted July 20, 2016 Report Share Posted July 20, 2016 Oh! OK, so when the engine has been running for a good 10 miles, can you stick your hand on it? What's the temp like? Are the hoses to the rad both hot or just the top one is hot? Link to comment Share on other sites More sharing options...
grahamjf Posted August 6, 2016 Author Report Share Posted August 6, 2016 just the top hose is hot Link to comment Share on other sites More sharing options...
cruiser647 Posted August 11, 2016 Report Share Posted August 11, 2016 If the top hose is hot, then it sounds like the thermostat isn't opening OR you have a blockage in the rad? Have you released all the air in the system? 1 Link to comment Share on other sites More sharing options...
grahamjf Posted August 28, 2016 Author Report Share Posted August 28, 2016 Thanks for the reply. What has to be removed to take the radiator out? Should the radiator be hot? Bottom hose is cold. Link to comment Share on other sites More sharing options...
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