awesome guidance provided above... remove, replace and grease is the way to go. I experienced similar issues in 2013, and after much much tinkering... a new cable did the trick. (a kink in the old cable could not be massaged or greased out).
@Impala Before you buy a new cable, measure the one you have before making a purchase.
My 2013 Vintage Speedster came with a super beetle 1390 mm cable. But there are cars out there with stock beetle cable lenthgs, which are shorter. 1390mm is the way to go!!!
Stock Beetle 52-57 = 1265mm
Stock beetle 58-74 = 1235mm
Super beetle 71-74 = 1390mm ( the way to go)
NOTE- SIDE PROJECT.. if you have been considering moving your speedo gauge to the right hand position in the instrument cluster ( vs the left where VS installs it) this is the time!!! (some folks like to do this), then you will need to consider a longer cable.
three commonly used lengths:
- Bus- 50-67 = 2070 mm ( too long in my opinion)
- Beetle right hand drive 65-77 = 1530mm
- Beetle right hand drive 57-65 = 1590mm (harder to find- always out of stock.)
I used a 1530 mm cable that is for a right hand drive VW. (purchased from Cip1. It works but the 1590mm would have been perfect.
hope this helps