W202 speedo irratic

[david_h]

The speedo has always been like this, even when I bought it, but gradually it's become worse.
It would normally only jump from 0-20mph when accelerating from a stop, now sometimes you don't get up to 50mph before it jumps from zero.

Why is it doing this? Someone said something to me about a sensor on the rear diff that may need a clean?

Any help much appreciated.

 

[jaymanek]

diff? thought it was on the gearbox?!

 

[david_h]

diff? thought it was on the gearbox?!

I've absolutely zero clue.

Can someone tell me where this is located.

Gearbox sounds more probable.

 

[Laters]

Sounds like you are having the same problem I had.
Have a look at this thread.
http://mbclub.co.uk/forums/showthread.php?t=23544&highlight=speedo+sticking
Looks like its quite a common w202 problem

 

[david_h]

Sounds like you are having the same problem I had.
Have a look at this thread.
http://mbclub.co.uk/forums/showthread.php?t=23544&highlight=speedo+sticking
Looks like its quite a common w202 problem

awesome, many thanks.