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How to set the ac controller to read battery voltage?

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Old 08-02-2005, 11:08 PM
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How to set the ac controller to read battery voltage?
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Old 08-03-2005, 02:12 AM
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Default Code 36 or 37
With <a href="https://forums.audiworld.com/a8/msgs/93409.phtml">This Procedure</a>.
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Old 08-03-2005, 04:50 PM
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Got it, thanks, 13.xx volt fluctuates. I think the alternator is still OK!!!
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Old 08-03-2005, 04:56 PM
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Temperature 102 only reads 20C = 68F? at normal running?
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Old 08-03-2005, 06:20 PM
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Default I run 88-90 oC, calling PaulW ...
Something's not right. Other's have confirmed that this works for the '01 A8/S8. Perhaps it's a different set of codes for the '98.

Paul, does this work on your '97?
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Old 08-03-2005, 08:46 PM
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(89*1.8)+32 = 192F, are you sure Randy? Normal operating temperature for coolant?
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Old 08-03-2005, 11:12 PM
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Default Just checked the Bentley, ...
The thermostat starts to open at 87 oC (188 oF) and isn't fully open until 102 oC (215 oF). Darn, I didn't know the motor was designed to run quite that hot!
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Old 08-04-2005, 07:41 AM
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use code 98 for coolant temp on pre-facelift cars
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Old 08-05-2005, 07:03 AM
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Ditto.... code 98 it is ... cold 33 high 90 and stay there. Thanks dstott!!!
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Old 08-05-2005, 10:14 AM
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Default Do you have the pre-facelift codes for voltage, speed, and rpm?
If so, I modify the other items in the <a href="https://forums.audiworld.com/a8/msgs/93409.phtml">Code List</a>.
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