Speedometer Failure on 2003 Jetta

[CAM6]

I have been experiencing a speedometer failure on my 2003 115 hp Jetta. At moderate to high speeds (60 to 70 mph) the speedometer pegs out, that is will not register a higher speed. If the cruise control is on, the car accelerates uncontrollably, if it is not on, the speedometer will not register a higher speed no matter what.

I have had the car in to the dealer twice, but they cannot locate a system fault on the computer, and did not see a problem on a test drive (probably at a lower speed). Any suggestions?

[veedubmechanic]

vw uses a plastic ring on the differential to sense speed. The ring normally loosens or breaks off causing no speedo. (common failure on AUTO trans 4spd o1m trans)

[mulligan1]

I have the same problem with my 03. Has anyone else experienced this or had any luck with the advice from veedubmechanic?

[zeek1403]

It might be the speed sensor. My friend had the same problem and then the whole thing quit all together. He replaced the speed sensor a now it works fine.

[CaptainBennett]

I had a similar problem on my 02 Jetta, which I recently got rid of. The best I could do was use my TomTom GPS which I could figure out my speed based on how my ETA arrival would change when I gave the car more or less gas.