Thread: Speedometer
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Old 09-29-2021, 02:14 AM
Alec300SD Alec300SD is offline
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Join Date: Nov 2013
Location: San Mateo, CA
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Your 1984 came with a 3.07 ratio differential.

Most probably you have a 2.88 ratio differential (only available in 1985).
If that is correct, the Mercedes Benz Part Number is A0115421906, still available new on eBay.
125mph/200kph gauge face.
(Best bet for longevity of the part)

Or purchase a used speedometer from one of the following vehicles:

1985, 300TD, OM617.952, 2.88, 1.1 Liter
1985, 300D, OM617.952, 2.88, 1.1 Liter
1985, 300CD, OM617.952, 2.88, 1.1 Liter
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Last edited by Alec300SD; 09-29-2021 at 12:49 PM. Reason: Removed incorrect information.
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