speedometer Merc 380sl 1984

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brutus1 - 12 Mar 2005 10:08 GMT

Hi there,
When the ignition is activated the speedometer goes from zero to 160. any
ideas?

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Martin Joseph - 12 Mar 2005 18:06 GMT

> Hi there,
> When the ignition is activated the speedometer goes from zero to 160. any
> ideas?

A short? I am surprised this is possible, as I would think such an old
car would have a mechanical speedo?

A mystery to me.
Marty

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brutus1 - 15 Mar 2005 10:10 GMT

Thanks. but where? Yes it is an old car but it has an electric speedo.
cheers

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Tom Sharples - 12 Mar 2005 19:47 GMT

I used to have the same problem in my '82 sl. It stopped after I got several
speeding tickets.

Tom Sharples

> Hi there,
> When the ignition is activated the speedometer goes from zero to 160. any
> ideas?

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Roland Franzius - 15 Mar 2005 15:34 GMT

brutus1 schrieb:

> Hi there,
> When the ignition is activated the speedometer goes from zero to 160. any
> ideas?

Its probably again this awkward fuel pump relay wich feeds the electric
speedo and tends to melt its soldering. Take off the relay to check the
speedo reaction. Check all sockets inside the relay.

Signature

Roland Franzius

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brutus1 - 18 Mar 2005 12:31 GMT

Thank you for your suggestion. I will try that, it is not easy as I am
unable to locate a workshop manual.
cheers,
Alan Dixon

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