Bouncing speedometer needle
09-23-2004, 01:47 PM
#1
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300TE / 300E / 300CE
Bouncing speedometer needle
I notice mine bounces at upper speeds. Anyone else have this problem and what is the fix?
Last edited by pifcat2; 09-23-2004 at 02:03 PM.
10-18-2010, 05:01 PM
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1988 300TE
I'm bumping this old thread just to keep my question together with the OP's question.
I have a bouncing speedo on a '88 300TE. Ordered and installed a new cable and I swear it's bouncing worse!
What else?
I have a bouncing speedo on a '88 300TE. Ordered and installed a new cable and I swear it's bouncing worse!
What else?
10-19-2010, 02:24 AM
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08 Lexus GS350 AWD. 08 Lexus RX350 AWD - wife's. 94 MBZ E320 - still have it.
Mine bounces from time to time, usually in the 25-45mph range. Whenever it starts bouncing, I pull out the instrument cluster just enough to be able to disconnect the speedo cable, then spray some WD-40 into the cable. It stops the bouncing for few months.
10-19-2010, 02:28 AM
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1988 300TE
My Cable is brand new and jumps all the way to 80 mph.
Is there anything else this can be besides the cable?
10-19-2010, 03:24 PM
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08 Lexus GS350 AWD. 08 Lexus RX350 AWD - wife's. 94 MBZ E320 - still have it.
That only leaves one suspect: the speedo itself. Try squirting some WD-40 into the cable opening on the speedo. It it doesn't fix it, swat the istrument cluster with somebody.
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10-19-2010, 10:44 PM
#8
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On my British cars the speedometer cable drive gear in the transmission is made of nylon. Because of that, speedo jumping at low speeds usually means the cable is shot or needs to be lubed. Speedo jumping at high or all speeds means that the nylon drive gear is damaged. Not sure if the Benz uses a similar setup, but if so, I would suspect the drive gear over the actual speedo.
- FD
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10-19-2010, 11:07 PM
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1988 300TE
It's much worse since the cable replacement.
It was bouncing up to about 50 and wouldn't be noticeable at 60-80. Now it's bouncing at a quicker "frequency" and bounces 100% of the dial.
It was bouncing up to about 50 and wouldn't be noticeable at 60-80. Now it's bouncing at a quicker "frequency" and bounces 100% of the dial.
