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grahamjf

water temp

11 posts in this topic

Hi all

Just 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 50
But when i select hot air its gets hot.

Is it normal sitting so low down?

Thank you in advance

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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!

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Thanks very much for the reply. Changed the thermostat the day, still the same.

Where is the temperature sender unit located?

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Not sure I'm afraid.

 

yahoo will have the details.  But it is usually a push fit, with a retaining clip

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Oooh, your local GSF/Eurocarparts will have the sensors.

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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)
 
Multi-Quote This Message pixel.gifpixel.gifpixel.gif
 

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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?

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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?

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Thanks for the reply.

 

What has to be removed to take the radiator out?

Should the radiator be hot?

Bottom hose is cold.

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