1996 W140 Parktronic Issue

jjrodger

Active Member
Joined
Apr 7, 2004
Messages
121
I am presently running a 1996 w140 S420 saloon.

The factory fit parktronic is displaying the following odd behaviour. The front system is activating at all speeds below about 50mph, rather than only below about 15mph. This is somewhat irritating (especially at night) if not the end of the world.

I have looked at the wiring diagram (attached) and done a bit of searching, but nothing obvious leaps out at me.

Any thoughts?

As always, all help is very grateful appreciated.
View attachment 6327.pdf
 

guydewdney

MB Enthusiast
Joined
Feb 14, 2004
Messages
2,903
Location
Porlock, Zomerzet
Car
906 Sprinter 313cdi
Bet a speed sensor has gone south. Get codes read?
 

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