What is the most likely cause of non functioning tach on a '80 300SD. Is it an electric or mechanical drive?
Does the dash remove the same as the W126?
What is the most likely problem with the tach?
Is there much diference between the W116 and the W126?

thanks

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Mark
82 300SD 110k
91 Caprice SS
92 Jetta TD
97 Cadillac Concours(300hp)
84 Celebrity 4.3L diesel