82 - 84 300D will have the 3:07 Differential. Use the speedometer from these 3 years.


82 - 84 300SD will have the 3:07 Differential as well. Use a W123 300D spedo.


The W126 spedo is electric and the W123 spedo is mechanical.
The W126 spedo will not fit/work in a W123.


If you keep your 83 240D spedo. it will work, it will not give you the correct speed or the odometer will be off also.
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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works