speedometer not working 1984 300sd

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Rooster - 28 Jun 2008 05:23 GMT

The speedometer and odometer on my 1984 300sd
stopped working. The other instruments are working fine.

There is not a speedo connected to the back of the
cluster on this model. Is there anything I can do or
check on my own or is it off the shop?

Thanks,
Jeff

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Tiger - 28 Jun 2008 14:46 GMT

Replace the fuse for the speedometer in your fusebox... take it out and
replace it with a new one.

The odometer is a different case, it needs to have the gear replaced... if
you are handy with tools, you can replace it yourself.

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Tiger - 28 Jun 2008 14:47 GMT

http://www.odometergears.com/

Buy complete set of three gears... do not just replace one.

Otherwise, send the cluster out for repair.

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Rooster - 29 Jun 2008 20:18 GMT

I pulled the cluster and all the gears for the speedometer/
odometer weren't slipping and seemed fine.

I then got under the car and poked around the transmission
area. I found the small metal (magnetic?) cylinder that goes
into the transmission had come out and was hanging by it's
wires. the screw that attaches this to the transmission was
missing. A truly easy fix!

Speedometer works fine now and I painted the
instrument needles while the cluster was out.

I am now a happy Mercedes camper.

Jeff

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