Quote:
Originally Posted by ps2cho
I may have found it in my Mercedes Bible in the back:
Q: Shakey needle vibrates or jumps.
A: Route speedo cable correctly. NOTE: Lubricating a speedo or cable will always result in failure of the unit.
|
In my experience this is not true. If you lubricate put some lithium grease on the end of the speedometer cable it will not result in failure of 'the unit'. I have lubricated the speedometer cable on multiple w201 and w124 cars over the past 5 years and have yet to see any failures.
Additionally, spraying some white lithium grease on the end of the cable will often correct the high pitched noise that cable driven speedometers sometimes make.