Well if this condition was not present before, then I guess it would be a safe assumption that it is the gauge/hookup and not the car. If it was the car, wouldn't it have done it before? From what I hear, Palo Alto Speedometer are good gauge fixers. You'd have to take out your cluster (not hard) and send just the speedo or the whole thing in. I'd just send the whole thing. www.paspeedo.com
'86 420SE Euro
904 Midnight Blue, Gray Velour
Dad bought it new, now I own it.
"A Mercedes-Benz is like a fine wine, it only gets better with age."