Speedometer Whine
08-20-2006, 06:36 AM
#1
AudiWorld Member
Thread Starter
Speedometer Whine
During the recent hot weather, I've notice that in the afternoon when the temperature is high (85+), the speedometer whines when throttle is applied.
Is the speedometer mechanical or is this likely within the dash itself?
Any ideas are welcome - I'm afraid if I take it to the dealer to diagnose, I'll get the famous "unable to duplicate" song and dance...
Is the speedometer mechanical or is this likely within the dash itself?
Any ideas are welcome - I'm afraid if I take it to the dealer to diagnose, I'll get the famous "unable to duplicate" song and dance...
08-20-2006, 07:38 AM
#2
The speedometer is electronic, driven by a speed signal from the ABS controller...
transmitted to the instrument cluster on the powertrain CAN buss. Is the whine effected by the radio power state or volume level?
08-20-2006, 08:18 AM
#3
AudiWorld Member
Thread Starter
Re: The speedometer is electronic, driven by a speed signal from the ABS controller...
Negative - Seems to be related to throttle input and ambient temperature.
I was just out for a spirited drive and no sign of whine. I'm going to go out again this afternoon when it hot and see if it comes out.
I was just out for a spirited drive and no sign of whine. I'm going to go out again this afternoon when it hot and see if it comes out.
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