1990 Mercedes 300E - Dash Noise 45-50mph

[PAPSPT]

NOISE IN DASH AT 45 TO 50 MPH; REPLACED SPEEDO CABLE AND STILL HAVE NOISE.

ANY IDEAS?

[wbuxton]

Do you have speedo needle deflection during noise? I'm not familiar with a 300E but if the needle is "flickering" I think you are on the the right track.

[steven kiser]

check and see if a/c hose is resting against something it shouldn't. the noise may be originating somewhere else and the dash is just amplifying it. a bad w/bearing may, just may cause a static charge and it;s coming in through the speaker.

[a&mauto]

NOISE IN DASH AT 45 TO 50 MPH; REPLACED SPEEDO CABLE AND STILL HAVE NOISE.

ANY IDEAS?

Did you replace the cable or the cable & housing assembly?

[steven kiser]

i don't mean this as a demeaning question but is the noise there when the speedo is disconnected at the tranny?

[Stewart Levy]

If I remember correctly, the cluster on this car pops out real easy and the car will still run that might help. Also the a/c blower motor on the car is very suspect!

[fortknoxx]

what kinda noise is it?
is the fire blanket securely attached to the hood? if not it might be flapping away under the hood making your noise.