Are they all interchangeable? What about the 126's, will
they fit a 123?
I ran my tank in the coupe down till the light came on, it
only took 15 gal to fill so I am assuming it only has a 17
gal tank. I would like a bigger one.

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project