My sister's 98 Golf 2.0 automatic currently has a non-working speedometer/odometer. A friend hooked it up to VAG-Com and said it wasn't showing any speed thru VAG-COm either, which he says means the "speed sensor" is most likely bad.
I spoke with the dealer, and they indicated there is a speed sensor on top of the transmission (i think it is right under the battery tray) and another "sensor" that is mounted on top of some plastic gears that go down into the final drive/tranny. This latter one looks like an old time speedo pickup, and the sensor converts the signal to an electrical impulse (I am guessing that is how it works).
Any theories on which of these sensors is most likely to cause a dead speedo? Any other suggestions as to what should be checked?
Thanks in advance for any thoughts.