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Looking for suggestions from coolant system gurus. The car is leaking coolant, but

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Old 02-13-2007, 02:08 PM
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Default Looking for suggestions from coolant system gurus. The car is leaking coolant, but

I have been unable to find the leak. The temperature gauge is not working and the temperature on climate control(cc code 51) ranges between 50 and 70 degrees. Also, since I'm not getting coolant/water in the floorboard, I'm assuming the heater core is ok.

I will replace the MSFT, afterrun pump, and thermostat.

With the low mid-west temperatures, the car runs like a scared rabbit. :-)
Old 02-13-2007, 02:20 PM
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Default Your thermostat need replacement, and check the coolant reservoir...

A pretty common failure mode is the part of the reservoir where the return line connects starts leaking because the plastic is failing. Makes for a very difficult to find leak until it finally fails completely- BTDT.
Old 02-13-2007, 02:23 PM
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Default

T-fitting in the back of the head, hose under the intake...
Old 02-13-2007, 02:24 PM
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Default Replace the MSFT?

Microsoft???

If there's anything Microsoft in your Audi, you clearly have some operating system issues. Convert to Apple immediately! ;^)
Old 02-13-2007, 06:44 PM
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Default Oops. I meant the multifunction temp switch. The license plate on

my allroad reads "AUDIOS". One of my client thought it meant Audi Operating System.
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