Speed Sensor not working
 

I have a 2003 5-speed automatic transmission jetta with 60K mileage. Once the car "heats up" aka car supposedly going 60 mph, the car is actually going 15-20 miles faster than what speedometer is reading and cruise control starts hesitating and needle is "bouncing". Can the sensor be replaced and not entire transmission, spending $5K to fix???

I will never buy another VW, and plan on telling that to anyone who asks!! This is my families' 3rd VW and all 3 have had major problems that end with car having to be sold for parts as fixing is more than cars' worth.

Try the Speed Transmitter.
 

I'm having the same problem. I dont care for VW either. However, Im trying to fix my wifes car. If you have heard or know what the problem was I would appreciate if you could tell me what fixed it.

I researched the problem a little and I think it might be the speed transmitter. Its a $32 part. I would appreciate any helpful feedback.
Thank you.

Usually, when you have a bad speed sensor, it will give you a check engine light code. Is the check engine light on???