Heated Mirrors question
Burning Brakes
Joined: Apr 2007
Posts: 763
Likes: 1
From: Oceanside Ca
Heated Mirrors
Why don't you have the engine at idle and then turn on the heated mirror feature and see if you can hear a change in the alternator, such as a whine from the additional electrical load? You could also have the motor idling, turn on the headlights and then activate the heated mirrors and see if the headlights dim when you start to heat the mirrors?I don't have heated mirrors on my convertible so I wouldn't even know where the button is located?
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Melting Slicks
Joined: Mar 2004
Posts: 2,437
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From: Bay Area (Danville) CA
Why don't you have the engine at idle and then turn on the heated mirror feature and see if you can hear a change in the alternator, such as a whine from the additional electrical load? You could also have the motor idling, turn on the headlights and then activate the heated mirrors and see if the headlights dim when you start to heat the mirrors?I don't have heated mirrors on my convertible so I wouldn't even know where the button is located?
Melting Slicks
Joined: Aug 2004
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From: Plainfield Ill.
The switch is connected to the rear defroster switch. I have that on my 03 -never really notice it in the winter, but I guess that's probably why my side mirror seemed always clear even when it's snowing but then again I never drive it on a snowy day- just dry clean winter days!.
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When I purchased an extended warranty though Warranty Direct, the inspector that came out to look my car over had some kind of digital thermometer that he used to check whether the rear defroster was working. I guess if you could find one of those, you could check the mirrors too. Or just wait until you get some frost on the rear window and outside mirrors and turn the rear defroster on.
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Melting Slicks
Joined: Mar 2004
Posts: 2,437
Likes: 59
From: Bay Area (Danville) CA
The switch is connected to the rear defroster switch. I have that on my 03 -never really notice it in the winter, but I guess that's probably why my side mirror seemed always clear even when it's snowing but then again I never drive it on a snowy day- just dry clean winter days!.
Oh well, nothing to interesting.
Thanks for the replies.
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Melting Slicks
Joined: Aug 2004
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From: Plainfield Ill.
J/K.
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I also believe that heated mirrors were standard equipment on all C5's on both sides.
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From: Menifee CA
i also heard same 
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